siemens milltronics – multiranger 100” · q16. drawing 1270-2012-15-04 and 1273-2012-14-04 a....

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Michael Pacholok Director Purchasing and Materials Management Division City Hall, 18 th Floor, West Tower 100 Queen Street West Toronto, Ontario M5H 2N2 Victor Tryl Manager Professional Services July 16, 2013 POSTED IN PDF – 57 pages ADDENDUM NO. 2 REQUEST FOR TENDER NO. 29-2013 CONTRACT NO. MCP-12-06WP Re: Provision of Construction services for the rehabilitation and upgrade for the West Rouge and Cumber Sewage Pumping Station Located at 6570 and 5316 Lawrence Ave. East in the City of Toronto. CLOSING: 12:00 NOON (LOCAL TORONTO TIME), JULY 26, 2013 Please refer to the above Request for Tender (RFT) document in your possession and be advised of the following: I. REVISIONS R1. Specification Section 15070: Delete Item 2.4.2, and Replace with: 2.4.2 All new stainless steel piping shall be Schedule 10S. R2. Specification Section 13900 Item 2.5.12 “Acceptable Manufacturer”: Delete: "Siemens Milltronics – Multiranger 100” Replace with: "Siemens – SITRANS LUT400". R3. Drawing S5002: Add the following to the end of Note #4: “Refer to Dwg. E5006 for details.” R4. Drawing S5002: Delete the note: “New 140x6mm alum. kick plate to be welded to the existing handrail posts.” Replace with: “New 140x6mm alum. kick plate to be bolted, not welded, to the existing handrail posts.” R5. Drawings S5002 & S6002: Add the following into the drawing “Notes”: “All ceilings to be re-painted. Existing paint to be removed and surface to be prepared as per paint manufacturer’s recommendations prior to re-painting.” 1 of 57

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Michael Pacholok Director

Purchasing and Materials Management Division City Hall, 18th Floor, West Tower 100 Queen Street West Toronto, Ontario M5H 2N2

Victor Tryl Manager Professional Services

July 16, 2013

POSTED IN PDF – 57 pages

ADDENDUM NO. 2 REQUEST FOR TENDER NO. 29-2013

CONTRACT NO. MCP-12-06WP Re: Provision of Construction services for the rehabilitation and upgrade for the West Rouge and Cumber Sewage Pumping Station Located at 6570 and 5316 Lawrence Ave. East in the City of Toronto.

CLOSING: 12:00 NOON (LOCAL TORONTO TIME), JULY 26, 2013

Please refer to the above Request for Tender (RFT) document in your possession and be advised of the following: I. REVISIONS R1. Specification Section 15070:

Delete Item 2.4.2, and

Replace with:

2.4.2 All new stainless steel piping shall be Schedule 10S.

R2. Specification Section 13900 Item 2.5.12 “Acceptable Manufacturer”:

Delete: "Siemens Milltronics – Multiranger 100”

Replace with: "Siemens – SITRANS LUT400".

R3. Drawing S5002:

Add the following to the end of Note #4:

“Refer to Dwg. E5006 for details.”

R4. Drawing S5002:

Delete the note: “New 140x6mm alum. kick plate to be welded to the existing handrail posts.”

Replace with: “New 140x6mm alum. kick plate to be bolted, not welded, to the existing handrail posts.”

R5. Drawings S5002 & S6002:

Add the following into the drawing “Notes”:

“All ceilings to be re-painted. Existing paint to be removed and surface to be prepared as per paint manufacturer’s recommendations prior to re-painting.”

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R6. Specification Section 09900 Item 3.7.5:

Delete: “Concrete: INT. 7-B, semi-gloss finish.”, and

Replace with: “Concrete: PPG Pitt-Guard 95-245 Series. Concrete surface shall be prepared per paint manufacturer’s recommendations prior to application. Application shall be a minimum of 6.0 mils.”

R7. Drawing S5002 “Main Floor”:

Clouded note in attached sketch 5521-ADD2-SK1 to be included in the Contract drawings and shall be incorporated in the As-Built drawings. The existing ladder and access hatch at the Generator Room shall be removed. The opening shall be sealed as per “Concrete Slab Opening Sealing Detail” on Dwg. S5003.

R8. Drawing S5002 & S6002:

Add the following into the drawing “Notes”:

“Aluminum checker plate covers (3 locations) to be removable without tools, and meet OSHA requirements.”

R9. Drawings P5003 & P6003: Add 50mm dia. vent and drain lines, complete with ball valves, at each pump. R10. Drawing P5003 & P6003: Delete the following note: “4x19Φ CONCRETE ANCHORS”

Replace with: “Concrete anchor with nuts and washer to be supplied and designed as per pump manufacturer requirements.”

R11. Drawing M5003: Add the following into the drawing “Notes”:

“New 300mm dia. stainless steel duct above grade to fan shall be 10 gauge stainless steel rigidly attached to the wall. Assembly to be vandal resistant.”

R12. Specification Section 16110: Add the following to Item 2.1.2:

“All ROBROY conduits to be installed as per manufacturer’s recommendations for highly corrosive environments.”

R13. Specification Section 16130: Add the following to Item 2.2:

“All pull boxes, junction boxes, fittings and connectors shall have CL1 DIV1 rating and shall be suitable for highly corrosive environments.”

R14. Drawing S6002: Add the following into the drawing “Notes”:

“Where demolition of existing equipment pad is called for, floor to be repaired/refinished to match existing floor.

R15. Drawing M6001:

Replace with attached drawing M6001 (ADD#2) which shows removal of existing chemical pump, associated equipment and pad.

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R16. Specification Section 02140: Add the following to Item 1.2:

“.11 The Contractor shall be responsible for the design, supply, installation, and operation of the Temporary Bypass Pumping Systems.”

R17. Specification Section 02140:

Add the following to Item 1.4: “.3 Contractor to provide engineered shop drawings, stamped and signed by a professional engineer registered in the Province of Ontario.”

R18. Section 2 – Information for Bidders, Item 6.1B: Replace the amount of the Bid Bond from $340,000.00 to $350,000.00 II. QUESTIONS AND ANSWERS Q1. Request to have FRANKLIN MILLER included as an approved supplier of Open Channel

Grinder per Section 11330.

A1. Franklin Miller may be included as an acceptable supplier for the Open Channel Grinder. Note that the design is based on the JWC open channel grinder, and any changes, modifications, or additional cost incurred by using an alternate manufacturer will be the total responsibility of the Contractor and will be provided in full at no cost to the project.

Q2. Please provide specifications for roofing work as per Items 10 & 11 in the Schedule of Prices.

A2. Refer to attached roofing specifications, which shall be included into the Contract as “Attachment ‘F’ – Roofing Specifications”:

"07 92 00 Sealants" "01 11 00 Summary of Work" "02 41 00 Demolition and Removal" "06 10 00 Rough Carpentry" "07 51 23 Conventional BUR" "07 62 00 Sheet Metal" "22 14 26 Mechanical Work".

Q3. Please clarify scope of work for Schedule of Prices #9. Will 2000 individual bricks be replaced or

would it be one area with 2000 bricks?

A3. The replacement of bricks will be for one area, the north exterior wall at Cumber. Q4. On drawing P6002, pump room upper level

Drawing shows 300mm x 45, and 300 x 200 reducers (ductile iron)

Note #2 on same drawing states all piping S.S. Please confirm

A4. All new piping, including all new reducers, shall be stainless steel, as per specifications. Q5. On drawing P6001

Note 1 states remove and replace 3 x 400 knife gate, there are 4.

Note 2 states remove and replace 2 x 350 gate valves, there are 3. Please confirm.

A5. With regards to the valve quantities:

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On Drawing P6001, Note 1, the note "3 x 350Φ KNIFE GATE VALVE" shall be replaced with "4 x 350Φ KNIFE GATE VALVE".

As per Drawing P6001, Section 1, there are 2 x 350 gate valves on the common discharge header. Two existing valves are being replaced, and a third is being added. See P6002 for exact location.

Q6. On drawing P6001, note 2, states to remove and replace 4 x 100 gate valves I cannot see any 100

dia. pipe or valves, please show.

A6. Refer to attached photo of the main discharge header bypass assembly where 4 x 100 gate valves are to be replaced. Also attached is sketch 5521-ADD#2-SK2 which is an excerpt from Dwg. I6002.

Q7. With regards to the bypass system, will site power be available for running the temporary pumps

or will the contractor be responsible for providing power?

A7. As per Specification Section 02140 Item 2.3, the Temporary Pumping Systems shall be supplied with a Standby Power system. The Standby Power system will provide the power for running the temporary pumps. Power from the station will only be provided for the diesel block heater and battery trickle charger.

Q8. Please advise size of openings for Schedule of Prices, Item 12.

A8. The size of the openings shall be 150mm dia. Q9. Please clarify bid bond amount. There is a discrepancy between your Information for Bidders

6.1B and the Form of Tender.

A9. $350,000 Q10. Section 01640 – Please provide manufacturer names and contact information for all equipment

requiring inspection and certification at the Kipling Yard prior to installation.

A10. The equipment requiring inspection and certification at Kipling Yard are: Dry Pit Submersible Pumps - Flygt (Xylem)

o Kevin Cassan, 905-577-3962, [email protected] Plug & Check Valves – Valmatic (Syntec)

o Steve Stoll, (905) 951-8000, [email protected] Q11. The existing grinder is to be removed and replaced. Can the sluice gate that controls the flow of

influent be shut down for a short period and surcharge the incoming sewer for a short period? This will allow for removal and replacement of the grinder without working in live sewage.

A11. There is a bypass inlet channel complete with a bar screen which may be utilized. This channel and the bar screen shall be assessed prior to commencement of work. If the bar screen is utilized, it shall be monitored and maintained at all times. Detailed action and contingency plan needs to be proposed to City in advance for review and acceptance. Contractor is responsible for all safety aspects of the job and should continuously monitor incoming flow to prevent any upstream surcharge.

Q12. Provide information regarding Wet Well access at the West Rouge Pumping Station. Is there an

access hatch to access the Wet Wells? Is there a grinder on the influent to these Wet Wells, and where is it located?

A12. Access to the West Rouge wet well is through the access door on the west side of the station. There is an access hatch in the Odour Control room. This hatch is for removal of the ex. comminutor in the wet well. Note that there is no grinder at West Rouge; only a communutor.

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Q13. The process drawings call off some of the piping as Stainless Steel and some of the piping as Ductile Iron, but the notes say “all piping to be Stainless Steel and the specifications only call off the discharge piping as Ductile Iron. Can you clarify what the new piping materials are?

A13. All new piping shall be stainless steel as per specifications. Q14. Reference Drawing E5004 Note #1. PVC Coated Steel conduit is specified however in

specification 16025 3.2.2 Teck cable is specified. Please clarify if use of Teck Cable is permitted.

A14. Use of HL TECK cables in wet well is not permitted. PVC coated RGS conduits shall be used in wet wells as indicated on DWGS. E5004 & E6006, and installed as per manufacturer’s recommendations.

Q15. Reference Drawings E5005 and E5006. Construction sequence describes a temporary genset.

Single line diagram shows a new genset by others. Specification 16230 describes a towable diesel generator. Please clarify if a temporary genset is required and if the towable diesel generator is by others?

A15. The Towable (Temporary) Generator shall be purchased, delivered and installed as part of this Contract per Section 16230. Upon removal of the existing generator at Cumber, the temporary generator shall be the standby generator for the station. When the works at Cumber SPS are substantially complete, the temporary generator will become the property of the owner. The "New Genset (By Others)" shown on Dwg. E5006 is not part of this Contract.

Q16. Drawing 1270-2012-15-04 and 1273-2012-14-04

a. General Note 1.6 - Please amend this note, as the contractor does not have any capacity for knowing if the site survey and layout is incorrect. They should not be responsible for trying to guess at time of tender. Any addition work due to this should be an extra to the contract.

b. General Note 1.16 – Please amend this note, as the Contractor should not be responsible for the provision of incorrect information.

A16. With regards to the notes on Drawings 1270-2012-15-04 and 1273-2012-14-04, a. The review of the site and its layout was available during the Contractor’s mandatory site

meeting. b. The review of the location of overhead utilities was available during the Contractor’s

mandatory site meeting. The location of underground utilities is based on information from as-builts and locates provided by others, therefore, the City and its Consultant are not responsible for its accuracy. It is the responsibility of the Contractor to have utility locates performed prior to commencement of work.

Q17. Drawing 1270-2012-15-08

a. Please confirm that the wet wells can be shut down independently to perform the suction valve removals

A17. The wet wells cannot be isolated. The stations should be bypassed and de-watered for replacement of all suction valves, grinder and any other component in Wet-Well such as float switches, LITs. Contractor is responsible for de-watering and station bypass for as long as it is required. Bypass plan should be proposed to city in advance for review and approval.

Q18. Section 01011, 3.2.1.4.13 – Please provide information on companies able to remove and replace

a 450 mm valve in under 60 minutes to meet the requirements of the “Quick Install” clause. A18. The operation of the Cumber and West Rouge SPS are critical to the City’s infrastructure. Items

identified as “quick install” items must be replaced without affecting station operations for long periods, which may result in flooding of the wet well. It shall be up to the Contractor to determine the best method to install the “quick install” items while minimizing station down time & risk. This work may need to be done at low flow conditions and scheduled with the City.

Q19. Section 01011, 3.2.1 – Please provide staging drawings to show how each pump can be isolated

during removals to keep the other pumps in service. We have reviewed the sequence and the

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drawings and there do not seem to be enough valves or enough room in the building to do what is described in this section.

A19. The Contractor is free to develop an alternative approach based on their construction expertise or past experience. The Contractor is responsible for submission of a detailed workplan as per Section 01300 Submittals.

III. CLARIFICATIONS C1. Drawing S5002 “Pump Room Floor”:

With regards to the discharge header thrust blocks at Cumber, a revised copy of Drawing S5002 is included with the new thrust block and notes clouded. This revision shall be included in the As-Built drawings.

Should you have any questions regarding this addendum contact Vicki McNamara at 416-397-5190 or [email protected]. Please attach this addendum to your RFT document and be governed accordingly. Tenderers are to acknowledge receipt of all addenda in their Tender in the space provided on the Tender Cover Page as per Section 1 – Tender Process Terms and Conditions, item 8 of the RFT document. All other aspects of the RFT remain the same. Victor Tryl, P. Eng. Manager Professional Services

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 1 - Section 01 11 00 Toronto, Ontario SUMMARY OF WORK

Page 1 of 3

1. Project Location

Cumber & West Rouge Pumping Stations, Toronto, Ontario.

2. Summary of Work

.1 Perform roof replacement as indicated on the Drawings, in accordance with Section 07

51 23 and as otherwise specified. This work to include the following:

1. Remove and dispose of the existing roofing system, including loose aggregate cover, roof membrane, leaving existing insulation and vapour retarder in place.

2. Remove and dispose of the existing sheet metal flashings, perimeter wood blockings and cants, pitch pockets, sleeves and all other roofing components to be replaced with new. Perform this work in accordance with Section 02 41 00.

Leave,

3. Disconnect, remove, store for reuse, reinstall and reconnect the existing exhaust fan units and other roof penetrations as required to permit roof replacement.

Disconnect, modify or replace and reconnect all related ductwork, piping and electrical components as required to accommodate the increased curb and sleeper support heights. Provide new flexible bellows to connect ductwork

to mechanical unit to match existing at all required locations. Perform this work in accordance with Section 22 14 26.

4. Disconnect, remove, store for reuse and reconnect existing conduits, cables,

wiring, insulated piping, gas lines and similar items to permit roof replacement and sleeve flashing installations, in accordance with Section 22 14 26. Secure existing loose conduit to parapet wall after installation of sheet metal flashings

using purpose made clamps.

5. Provide the following carpentry work in accordance with Section 06 10 00:

.1 Provide new perimeter wood blockings carpentry.

.2 Refasten existing wood carpentry where required to provide adequate securement.

.3 Provide new carpentry, including wood blockings, nailers, and plywood

sheathing where indicated on the drawings.

.4 Modify existing mechanical equipment and exhaust fan curbs to provide a minimum of 300 mm above the height of the new roofing membrane.

Length and width of new mechanical equipment sleeper supports to match the existing.

.5 Replace any deteriorated and rotted wood blockings as required. This

work is not to be included in the stipulated price but shall be performed on a unit price basis where approved by the Consultant.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 1 - Section 01 11 00 Toronto, Ontario SUMMARY OF WORK

Page 2 of 3

6. Provide new conventional built-up bituminous roofing membrane system which shall consist of the following:

.1 New asphalt flood coat and aggregate cover. Provide double pour asphalt floodcoat and aggregate cover at roof perimeters and penetrations;

.2 New 1-ply organic felt base plus 2-ply glass matt built-up bituminous roofing membrane;

.3 New 2-ply modified bituminous membrane flashings;

.4 New 25 mm thick fiberboard insulation;

7. Provide tapered insulation between existing roof drain locations as indicated on Drawings and reviewed shop drawings. Drainage patterns indicated on

Drawings shall be considered a guideline only.

8. Provide new roof drains at existing roof drain locations. Size of new drains to match the existing rainwater leader and connect with a mechanical connection.

Ensure roof drains are clear of all debris and free draining at project completion.

9. Provide insulated copper sleeve flashings, storm collars and all other components necessary to ensure continued water tightness of all roof

penetrations and protrusions. Provide sprayed polyurethane foam insulation to fill void between penetration and sleeve flashing. Supply and fabricate copper sleeve flashings and storm collars in accordance with Section 07 62 00.

10. Provide membrane underlayment beneath sheet metal flashings except where membrane flashings are present in accordance with Section 07 62 00.

11. Provide all prefinished sheet metal flashings, at all locations of membrane

flashings, including all curb locations, and as detailed on the Drawings. Perform this work in accordance with Section 07 62 00.

12. Provide sealants in all reglet joints, to sheet metal flashing joints and

intersections such as corners, at storm collars and to all other locations to provide watertight joints in accordance with Section 07 92 00.

13. Provide silicone sealant between storm collars and roof penetrations in

accordance with Section 07900.

14. Provide butyl sealant at the following locations in accordance with Section 07 92 00:

.1 Along locations where membrane flashings terminate at the base of a wall or curb (horizontal and vertical terminations);

.2 Along joint between roof or wall penetrations and membrane flashings

and vapour retarder membrane.

15. Perform daily and final clean-up of work areas and surrounding areas and site. Ensure roof drains are clear of all debris and free draining at project completion.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 1 - Section 01 11 00 Toronto, Ontario SUMMARY OF WORK

Page 3 of 3

.2 The above description is general only and must not be construed as limiting the scope of work.

End of Section 01 11 00

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 2 - Section 02 41 00 Toronto, Ontario DEMOLITION AND REMOVAL

Page 1 of 4

Part 1 - General

1.1 General

.1 All conditions of the contract and Division 1, General Requirements, apply to this section.

.2 All work shall meet CAN3-S350-M1980 and O.B.C. requirements.

1.2 Coordination

.1 Co-ordinate work under this section with work of related sections.

1.3 Related Work Specified Elsewhere

.1 Rough Carpentry: Section 06 10 00

.2 Conventional Built-Up Bituminous Roof Membrane System Section 07 51 23

.3 Sheet Metal Flashing & Trim: Section 07 62 00

.4 Sealants: Section 07 92 00

.5 Mechanical Work: Section 22 14 26

1.4 Scope of Work

.1 Supply all labour, materials and equipment necessary to perform the selective demolition, removal and disposal work specified in Section 01 11 00, Summary of

Work, to the full extent of the Drawings and Specifications.

1.5 Demolition Drawings

.1 Submit for approval, drawings, diagrams or details clearly showing the sequence of disassembly and demolition, if required by authorities having jurisdiction.

1.6 Protection

.1 Provide barricades, guard rails, overhead protection, and other protection as required, to give full protection to occupants, general public, and workers employed on the demolition, and to adjacent buildings, properties and landscaping.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 2 - Section 02 41 00 Toronto, Ontario DEMOLITION AND REMOVAL

Page 2 of 4

.2 Protect adjacent building surfaces and properties against damage which might occur from falling debris or other causes related to the work. Maintain free and safe passage

to and from and within the buildings.

.3 Prevent movement, settlement or damage to adjacent structures and parts of existing building to remain. Provide bracing as required. Make good damage and be liable for

injury caused by demolition.

.4 Provide temporary protection against weather where work leaves unprotected openings in exterior walls of building.

.5 Prevent debris from blocking any building, site or municipal drainage system.

1.7 Permits and Regulations

.1 Arrange and pay for all permits, notices and inspections necessary for the proper execution and completion of the demolition work.

.2 Unless otherwise specified, carry out work of demolition in accordance with CSA S350-M1980 Code of Practice for Safety in Demolition of Structures, Ontario Building Code and to requirements of Ontario Occupational Health and Safety Act and Regulations for

construction projects.

.3 Comply with all fire safety regulations and procedures required by Construction Safety Act of Ontario, Ontario Building Code and Municipal Authorities having jurisdiction.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 2 - Section 02 41 00 Toronto, Ontario DEMOLITION AND REMOVAL

Page 3 of 4

Part 2 - Products

.1 Not applicable.

Part 3 - Execution

3.1 Demolition and Removal

.1 Remove and dispose of existing roofing components specified in Section 01 11 00,

Summary of Work. This work includes complete removal of the roof membrane from the structural deck.

.2 Remove only areas of the existing roofing system which can be replaced with the new

specified roofing system complete with membrane flashings on the same day.

.3 Ensure that the method of roof removal does not damage the existing roof decking, adjacent components or other substrates which are to remain.

.4 Inform Consultant of any unusual or deteriorated construction revealed during roof removal. Allow Consultant to review conditions prior to roof replacement.

.5 Leave existing and new roofing in a watertight condition at end of each day's work.

.6 Leave work in safe condition so that no part is in danger of toppling or falling at end of each day's work.

.7 Do not use hoists or other equipment in a manner which would overload the structure.

.8 Demolish in a manner to minimize dusting. Keep dusty materials wetted.

.9 Remove existing equipment, services and obstacles where required for refinishing or making good of existing surfaces, and replace same as work progresses.

3.2 Disposal

.1 Dispose of debris on a continuous basis. Do not stockpile debris in a manner which would overload the structure.

.2 Dispose of demolished materials except where noted otherwise.

.3 Implement a waste management 3 R's program on this project site wherever feasible. Segregate from debris all materials which presently can be recycled or reused. Transport these materials to a reuse or recycling facility.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 2 - Section 02 41 00 Toronto, Ontario DEMOLITION AND REMOVAL

Page 4 of 4

.4 Materials not acceptable for reuse or recycling shall be disposed of at an appropriate and authorized landfill / lakefill site.

.5 Burning of debris or selling of materials on site will not be permitted.

.6 Take measures to control dust during disposal operations.

.7 Cost of transporting to dump site and for dumping of materials, etc., are to be included

in the Bid Price.

.8 Treasure, such as coins, bills, paper of value, and articles of antiquity, discovered during demolition work at the site shall remain property of Owner.

End of Section 02 41 00

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 6 - Section 06 10 00 Toronto, Ontario ROUGH CARPENTRY

Page 1 of 5

Part 1 - General

1.1 General

.1 All conditions of the Contract and Division 1, General Requirement apply to this section.

.2 All work shall meet the requirements of the 2006 Ontario Building Code, and the Canadian Roofing Contractors Association (C.R.C.A.), including all amendments up to project date.

1.2 Coordination

.1 Co-ordinate work under this section with work of related sections.

1.3 Related Work Specified Elsewhere

.1 Selective Demolition and Removal: Section 02 41 00

.2 Conventional Built-Up Bituminous Roof Membrane System Section 07 51 23

.3 Sheet Metal Flashings & Trim: Section 07 62 00

.4 Sealants: Section 07 92 00

.5 Mechanical Work: Section 22 14 16

1.4 Scope of Work

.1 Supply all materials, labour and equipment required to complete all carpentry work specified in Section 01 11 00, Summary of Work to the full intent of Drawings and Specifications.

1.5 Source Quality Control

.1 Identify lumber by grade stamp of an agency certified by Canadian Lumber Standards Administration Board.

.2 Plywood identification: by grade mark in accordance with applicable CSA Standards.

1.6 Delivery and Storage

.1 Deliver and store materials to manufacturer's instructions.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 6 - Section 06 10 00 Toronto, Ontario ROUGH CARPENTRY

Page 2 of 5

.2 Do not store materials on roof in a manner which may overload the structure.

.3 Store materials under cover on elevated platforms, protected from weather and

construction activities.

.4 Remove and replace damaged or broken materials.

.5 Store materials away from open flame or ignition sources.

.6 Do not transport any materials through the building.

1.7 References

.1 CSA O80.1-M89; Preservative Treatment for all Timber Products by Pressure Processes.

.2 CSA O121-M1978; Douglas Fir Plywood.

.3 CSA O151-M1978 Canadian Softwood Plywood.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 6 - Section 06 10 00 Toronto, Ontario ROUGH CARPENTRY

Page 3 of 5

Part 2 - Products

2.1 Materials

.1 Wood: Grade No. 2, Northern softwood species in accordance with the "Standard Grading Rules for Canadian Lumber" issued by the N.L.G.A. Wood to be pressure

treated in accordance with CSA 080.1-M89 to a net retention of 4.0 kg/m3. Sizes as noted on Drawings.

.2 Plywood sheathing: exterior sheathing grade, solid one side unsanded, meeting CSA

0121-M1978 or CSA 0151-M1978. Thickness to match the existing. Moisture content of the plywood shall not exceed 19%

.3 Nails: galvanized steel Ardox nails.

.4 Wood preservative: Chromated Copper Arsenate (CCA) to CSA 080.1-M89, green colour.

.5 Fasteners for wood: Galvanized steel wood screws with countersunk heads of size

and length to provide secure anchorage.

.6 Fasteners for steel substrates: Flat head, self-tapping steel screw with galvanized finish as supplied by Fastening House, or approved equivalent. Length: to suit

material thickness.

.7 Fasteners for masonry and concrete substrates: Tapcon fasteners with "Climaseal" corrosion resistant finish, as manufactured by Buildex/Red Head, or approved

equivalent. Length to suit material thickness.

.8 Bolts, Washers and Nuts: to ASTM A307-82a. Size as indicated on Drawings. Hot dipped galvanized or approved equivalent corrosion resistant finish.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 6 - Section 06 10 00 Toronto, Ontario ROUGH CARPENTRY

Page 4 of 5

Part 3 - Execution

3.1 Installation

.1 Comply with the requirements of the 2006 Ontario Building Code, Part 9, supplemented with the following paragraphs.

.2 Work shall be performed by skilled carpenters.

.3 Install continuous plywood sheathing, wood blockings, studs, nailers and continuous shims where required and/or detailed on Drawings. Shims to be of sufficient height to

ensure a minimum five percent positive slope is provided on all parapet walls and under cap flashings.

.4 Provide new HVAC equipment, exhaust fan, exhaust vent and duct penetration curbs.

Width and length and curbs to match the existing. Curbs shall be a minimum of 300 mm above the height of the roofing membrane.

.5 Provide new HVAC equipment wood sleeper supports. Width to be a minimum of 140

mm. Length of sleeper to span between two framing members. Supports shall be a minimum of 300 mm above the height of the roofing membrane.

.6 Securely anchor wood blockings, cants, nailers and shims in-place at 300 mm on

centre in a staggered pattern. Fasten studs to top and bottom plates with two screw fasteners. Fasten wood blockings cants, nailers and shims together and to the existing substrate with appropriate screw fasteners.

.7 Fasten plywood along supported edges at a minimum of 150 mm on centre. Fasten plywood to framing members within the field of the plywood panel at a minimum of 300 mm on centre. Fasten plywood to wood framing and to existing substrates with

appropriate screw fasteners.

.8 Refasten loose existing wood blockings, plywood, shims, cants with screw fasteners where permitted to remain as required and to the satisfaction of the Consultant.

.9 Co-ordinate work to keep cutting and remedial work to a minimum.

.10 Treat cut ends of all wood which is saw-cut on site with wood preservative.

.11 Fastenings shall be of size and spacing required to assure secure anchorage. The

fastener spacing of wood blocking to the substrate and to each other shall not exceed 300 mm unless otherwise accepted in writing by the Consultant. Provide the Consultant, if requested, with shop drawings, stamped by a Professional Engineer, if a

greater fastener spacing is to be used.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 6 - Section 06 10 00 Toronto, Ontario ROUGH CARPENTRY

Page 5 of 5

3.2 Cleaning

.1 Remove all surplus materials and debris resulting from the foregoing work daily as the work proceeds and on completion.

End of Section 06 10 00

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Part 1 - General

1.1 General

.1 All conditions of the contract and Division 1, General Requirement apply to this section.

.2 All work shall meet the requirements of the 2006 Ontario Building Code, and the Canadian Roofing Contractors Association (C.R.C.A.), including all amendments up to project date.

1.2 Coordination

.1 Co-ordinate work under this section with work of related sections.

1.3 Related Work Specified Elsewhere

.1 Demolition and Removal: Section 02 41 00

.2 Rough Carpentry: Section 06 10 00

.3 Sheet Metal Flashing & Trim: Section 07 62 00

.4 Sealants: Section 07 92 00

.5 Mechanical Work: Section 22 14 26

1.4 Scope of Work

.1 Supply all materials, labour and equipment required to perform complete roof replacement specified in Section 01 11 00 to the full intent of Drawings and Specifications.

1.5 Shop Drawings

.1 Prepare and submit to the Consultant for review, tapered insulation, electrical conduit and gas line support shop drawings, prior to commencement of work. Provide one reproducible copy of the shop drawings.

.2 Tapered Insulation:

.1 Indicate on shop drawings all insulation layers, slopes, crickets, insulation sumps and drainage patterns.

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.2 Drainage patterns indicated on Drawings shall be considered a guideline only. Tapered insulation shall provide a minimum 1% slope.

.3 Gas Line and Electrical Conduit Supports:

.1 Indicate on shop drawings gas line support spacings and layout.

.2 Space gas line supports in accordance with the specified requirements of the Ontario Gas Utilization Code; Table 8.9.3, entitled Spacing of Supports for Piping.

1.6 Job Conditions

.1 Ensure that all surfaces to receive primer or membrane are clean, level, smooth, solid and dry, before commencing work each day.

.2 Work shall not be carried out during inclement weather conditions.

.3 Temperatures during application shall not be less than the minimum recommended by the material manufacturer.

.4 Stop work when temperature remains consistently below -18oC, especially when wind chill effect would tend to set bitumen before proper adhesion takes place.

.5 Use only dry materials and apply only during weather that will not introduce moisture into roofing system.

.6 Weather conditions for a work day (prior to start of work) may be inclement and where the POP (Probability Of Precipitation) is greater than 50% (as per Environment of Canada weather reports at 6:00 AM local time for Toronto, Ontario for that work day) then the start of the work day shall be agreed upon by all parties (contractor, consultant, and owner).

.7 In cases of rain penetration into the building, the Roof Contractor shall mobilize all forces including all cleaning crews to facilitate the cleaning of all interior surfaces affected by the water to the complete satisfaction of the Owner’s representative at any given 24 hour period of the day.

.8 The Owner shall furnish other cleaning crews or contractors to facilitate the clean-up where required. Such cost shall be borne by the Roof Contractor. All clean-up work shall be done within 1 hour of the roof leak.

.9 A 24-hour pager or cellular phone number of the Roof Contractor’s Project Manager shall be furnished to the Consultant and the Owner. The designated phone number shall be in operation for a 24-hour period each day for the duration of the project.

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1.7 Protection

.1 Protect surrounding surfaces from bitumen splatter, cover walls in hoisting and pumping areas with tarpaulins.

.2 Locate kettles so smoke shall not enter buildings or discolour surfaces.

.3 Protect finished roofing at work areas or access to work areas with minimum 13 mm plywood underlaid with 25 mm polystyrene insulation board extending 900 mm beyond work area.

.4 Prevent bitumen, precipitation and debris entering openings and drains during work.

1.8 Warranty

.1 Provide Canadian Roofing Contractors’ Association (CRCA) Standard Form of Warranty, complete with a copy of the CRCA’s Preventative Maintenance Manual or similar written warranty acceptable to the Owner Representative and the Consultant. The warranty shall be for a period of two (2) years from date of Substantial Performance as certified by the Consultant.

.2 Provide material and material / labour warranties offered by the material manufacturers.

.3 Repair leaks into building or roofing assembly within 24 hours of notification.

.4 Inspect the roof 30 days before expiry of warranty and correct defects within 15 days of inspection. This inspection shall be performed at no additional cost to the Owner.

.5 Carry out repair work required under the warranty in accordance with the recommendation of the Consultant.

1.9 Delivery and Storage

.1 Deliver and store materials to manufacturer's instructions.

.2 Do not store materials on roof.

.3 Store materials under cover on elevated platforms, protected from weather and construction activities.

.4 Deliver and store materials in original packages with labels intact.

.5 Remove and replace damaged, wet or broken materials.

.6 Stand rolled materials on end, and protect edges.

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.7 Cover gravel during inclement weather.

.8 Store materials away from open flame or ignition sources.

.9 Do not transport any materials through the building.

1.10 Reference Standards

.1 ASTM D2178, Specification for Glass Felt, asphalt, Used in Roofing and Waterproofing.

.2 CAN/CGSB 37.5-M89, Cutback Asphalt Plastic Cement.

.3 CAN/CGSB 51.20-M87, Thermal Insulation, Polystyrene, Boards and Pipe Covering

.4 CGSB 37-GP-9MA, Primer, Asphalt, Unfilled, for Asphalt roofing, dampproofing and waterproofing.

.5 CGSB-37-GP-56M, Membrane, Modified, Bituminous, Prefabricated and Reinforced for Roofing.

.6 CSA A123.3-M, Asphalt or Tar Saturated Roofing Felt.

.7 CAN/CGSB-51.33-M, Vapour Barrier Sheet, Excluding Polyethylene, for use in Building Construction.

.8 CSA A123.4-M, Bitumen for Use in Construction of Built-Up Roof Coverings and Dampproofing and Waterproofing Systems.

.9 CAN/CSA A247-M86, Insulating Fibreboard.

.10 CAN/ULC S-701, Thermal Insulation, Urethane and Isocyanurate, Boards, Faced.

.11 CAN/ULC S-705.1, Spray Applied Polyurethane.

.12 CAN/ULC S-770, Determination of long term thermal resistance (LTTR) of closed cell thermal insulating foams.

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Part 2 - Products

2.1 Materials

1. Asphalt primer: to CGSB 37-GP-9M.

2. Asphalt: to CSA A123.4-M1979, Type 2 on slopes up to 1:8 and Type 3 on slopes over 1:8.

3. Glass fibre mats: asphalt coated glass fibre mat to meet the specified requirements of ASTM D 2178, Type 4.

4. Organic felt: No. 15 asphalt saturated felts to CSA 123.3-1979-M.

5. Modified bituminous base sheet flashings: in accordance with CGSB-37-GP-56M, Type 2, Class C, Grade 2, minimum 2 mm thick SBS modified bituminous membrane with polyester reinforcing mat of 180 g/m2. Acceptable membrane flashing manufacturers:

.1 Bakor Inc.;

.2 IKO Industrial Roofing Products;

.3 Johns Manville Corporation;

.4 Soprema Waterproofing Inc.;

.5 or an approved equivalent.

6. Modified bituminous cap sheet flashings: in accordance with CGSB-37-GP-56M, Type 1a, Class A (granular surfaced), Grade 2, minimum 4 mm thick, SBS modified bituminous membrane with polyester reinforcing mat of 250 g/m2. Acceptable membrane flashing manufacturers:

.1 Bakor Inc.;

.2 IKO Industrial Roofing Products;

.3 Johns Manville Corporation;

.4 Soprema Waterproofing Inc.;

.5 or an approved equivalent.

7. Modified bituminous membrane primer: as supplied or recommended by the modified bituminous membrane manufacturer.

8. Rigid Foam Insulation: Polyisocyanurate foam rigid roof insulation boards, Type 3, Class 2, manufactured with HC blowing agent bonded to glass fibre reinforced facers on top and bottom surfaces during the manufacturing process meeting the

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requirements of CAN/ULC-S126 & CAN/ULC-S107, conforming to CAN/CGSB 51.26M, CAN/ULC-S704 and CAN/ULC-S770 for Long Term Thermal Resistance (LTTR) R-values, approved and listed by Factory Mutual Global for Class 1-60/75/90 windstorm classification & meeting FM4450 approval requirements for Class 1A Fire as a component in roof deck construction. Board size to be 1220 x 1220mm (48” x 48”) maximum. Approved products: "E'NRG'Y 3" as manufactured by Johns Manville Corporation, “AC Foam II” as manufactured by Atlas Roofing Corporation or an approved equivalent. Thickness shall be as indicated in Section 01 11 00.

9. Rigid Fibreboard Insulation: High density asphalt impregnated wood fibreboard insulation in accordance with CAN/CSA A247-M86. Density to be a minimum of 106 kg/m3 (10 pcf). Compressive strength to be a minimum of 207 kPa (30 psi) at 5% consolidation. Thickness of insulation to be 25 mm.

10. Tapered insulation sumps: Tapered insulation sumps shall be prefabricated by Accu-plane Enterprises Inc. or Posi Slope Enterprises Inc. from specified rigid insulation. Fabricate tapered insulation sumps with a minimum 2% slope.

11. Tapered insulation crickets: Tapered insulation shall be prefabricated by Accu-plane Enterprises Inc. or Posi Slope Enterprises Inc. from High density asphalt impregnated fibreboard insulation in accordance with CAN/CSA A247-M86. Compressive strength to be a minimum of 45 psi. Fabricate tapered insulation with a minimum 4% slope.

12. Fibre cants: 89 mm x 89 mm standard fibreboard cant to CSA A247-M1978, Type 1.

13. Aggregate: 6 mm to 13 mm size, well graded, round, opaque, non-porous material, washed, free of fines, moisture, ice and snow and long splinters.

14. Nails: hot dipped galvanized steel, spiral head, 25 mm nailing disc, minimum 25 mm substrate penetration.

15. Air/vapour retarder membrane: Composite self adhering membrane comprised of rubberized or modified asphalt and polyethylene such as Blueskin SA as manufactured by Bakor Inc. or an approved equivalent.

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2.2 Roofing Accessories

1. Roof drain: "RD-4C (Copper) Roof Drain ", complete with clamping ring, brass ferrule and under deck clamp as manufactured by Thaler Metal Industries Inc., or approved equivalent. Diameter to suit existing rainwater leader.

2. Conduit penetration sleeve flashing: "MEF-1A Aluminum Pre-Insulated Flashing for Rigid Conduit" as manufactured by Thaler Metal Industries Inc., or an approved equivalent. Size, number and type to suit existing conduit / pipe penetration sizes, number and configuration.

3. Vent pipe sleeve flashing: "SJ-27, Aluminum Stack Jack Flashing", as manufactured by Thaler Roofing Specialties Products Inc. Diameter to suit existing vent pipe,

4. Metal chimney sleeve flashing: "MEF-4A Aluminum "B" Vent Flashing (with Split Collar)" as manufactured by Thaler Metal Industries Inc., or an approved equivalent. Diameter to suit existing metal chimney.

5. Banding strip: hot dipped galvanized sheet steel, 3 mm core nominal thickness, Z275 coating designation to ASTM A525M-80, 25 mm wide.

6. Fasteners for masonry and concrete: Tapcon fasteners with "Climaseal" corrosion resistant finish, or an approved equivalent, of sufficient length to provide a minimum 38 mm penetration into substrate.

7. Precast concrete pavers: “Brooklin Roof Ballast slabs with Built-In Pedslab Pedistal System”, as manufactured by Brooklin Concrete Products Ltd. or an approved equivalent meeting CSA 231.1-1972 or CAN3-A231.2-M85. Size to be 610 mm x 610 mm x 50 mm. Colour to be natural with standard diamond texture.

8. Rigid foam insulation underlayment: “Roofmate” as manufactured by Dow Chemical Canada Ltd., or an approved equivalent meeting CAN/CGSB 51.20-M87, Type 4. Thickness to be 25 mm.

9. Mastic: "POLYroof" as manufactured by Tremco Ltd., or an approved equivalent.

10. Sprayed polyurethane foam insulation: one component polyurethane foam insulating sealant, such as “Great Stuff Pro” manufactured by The Dow Chemical Company or an approved equivalent.

11. Pourable sealer: polyether/ethicone based, zero voc, pourable consistency, moisture cured sealer; “Chem Link One Part Pourable Sealer” as manufactured by Chemlink Advanced Architectural Products represented by Building Resource Inc. (416-410-4055) or an approved equivalent.

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Part 3 - Execution

3.1 Examination

.1 Examine site conditions and surfaces to ensure that they are in satisfactory condition for the commencement of the work of this section.

.2 Examine work of other trades for defects and discrepancies and report them to the Consultant/Owner in writing. Do not proceed with work until surfaces are satisfactory.

3.2 Preparation

.1 Ensure that substrates are smooth, clean and dry.

.2 Clean surfaces of all substances, which may be detrimental to the new roofing system.

.3 Clean with solvent existing steel curbs and allow vapours to dissipate prior to membrane application.

3.3 Asphalt Preparation

.1 Prepare asphalt following manufacturer's recommendations.

.2 Application temperature to be in accordance with asphalt manufacturer's specified equiviscous temperature (EVT).

.3 Ensure an accurate thermometer is available independent from the kettle.

.4 Dispose of overheated asphalt.

3.4 General Application

.1 Perform work as specified and in accordance with CRCA and manufacturers' printed instructions.

.2 Where manufacturers' printed instructions are not available, or a situation is ambiguous or unique, consult the Manufacturer's Technical Representative and the Consultant to review the situation and make clarifications. Instructions will be confirmed in writing by the Consultant.

.3 Complete roofing membrane to each day's termination point and install temporary water cut-off.

.4 Remove water cut-off when work resumes.

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.5 Asphalt quantity:

.1 1.2 kg/m2 asphalt for each felt mopping

.2 1.2 kg/m2 asphalt for mopped top coat

.3 3.6 kg/m2 asphalt for pour coat

.6 Fasteners: Size and spacing to assure secure anchorage.

3.5 Primer

.1 Apply primer to affected exposed masonry, concrete, and metal surfaces at a minimum rate of 0.5 litres/m2.

.2 Prevent primer from entering building interior through openings and joints within the building construction.

.3 Allow primer to cure prior to application of vapour retarder.

3.6 Insulation

.1 Lay the specified rigid fibreboard insulation, tapered fibreboard insulation and tapered insulation sumps over the existing concrete roof slab.

.2 Install tapered insulation sumps and tapered fibreboard insulation crickets following the drainage patterns indicated on Drawings and in accordance with the reviewed shop drawings.

.3 Apply a full mopping of hot asphalt applied at a rate of 1.2 kg/m2

.4 Walk insulation into hot asphalt to achieve solid bond, immediately after placement.

over the rigid insulation and embed the specified insulation while the asphalt is still fluid.

.5 Stagger all joints in insulation boards within each layer and between layers.

.6 Do not lay more insulation than can be covered with the roofing membrane on the same day. Insulation which is damaged by moisture shall be promptly removed from the site.

3.7 Fibre Cants

.1 Install fibre cants at junctions between horizontal and vertical surfaces unless otherwise indicated on the Drawings.

.2 Provide tight flush joints between length of cants and mitre corners.

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.3 Embed fibre cants in full mopping of hot asphalt and ensure adequate anchorage.

3.8 Roofing Membrane

.1 Install 1-ply organic felt base membrane in hot asphalt over the insulation. Extend 1-ply organic felt base membrane to top of cants.

.2 Overlap base membrane a minimum of 100 mm at all sidelaps and 150 mm at all endlaps. Stagger end laps a minimum of 1000 mm.

.3 Install 2-ply glass matt roofing membrane in accordance with the applicable CRCA Specifications:

.1 Concrete Roof Decks: CGI-1, Asphalt, Gravel Surface, Glass Matt, Insulated, Concrete Deck; January, 1997.

.4 Extend roofing membrane to top of cants.

.5 Do not gang roll felts during application.

.6 Protect new membrane from wheel and foot traffic until bitumen has set.

.7 Install felts smooth, free of wrinkles, fishmouths, air pockets and tears. All fishmouths in membrane are to be cut immediately while bitumen is hot and worked into the membrane. Repair all defects with an additional ply of fibreglass felt extending a minimum of 150 mm beyond the defect in each direction.

.8 Do not leave membrane exposed overnight. Glaze coat with asphalt at a rate of 1.2 kg/m2.

3.9 Membrane Flashings

.1 Apply asphalt primer to surfaces which are to receive membrane flashings at a minimum rate of 0.5 litres/m2. Allow primer to cure prior to membrane flashing application.

.2 Install membrane flashings in general conformance with the CRCA standards noted below, manufacturer's recommendations and as indicated on Drawings. Membrane flashings shall consist of 2-ply modified bituminous membrane flashings, unless otherwise specified or detailed.

.1 Low Parapet Wall - FL. 1.

.2 Medium or High Parapet Wall - FL. 2.

.3 Roof Edge for Roofs with Interior Drainage - FL. 3.

.4 Base Flashing for Walls - FL. 11

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.5 Base Flashing for Deck not supported by Wall - FL. 12.

.6 Roof Area Divider - FL. 14

.7 Movement Joint - FL. 15

.8 Roof Drain - FL. 21. (using 3 -plies of No. 15 organic felt)

.9 Prefabricated Stack Flashing- FL. 22. (using 3 -plies of No. 15 organic felt)

.10 Typical Curbed Opening- FL. 23.

.11 Equipment Sleeper for Loads over 1.3kN (300 Lbs.) - FL. 26.

.12 All other penetrations and protrusions shall be flashed into the roofing system using 3 -plies of No. 15 organic felt. Last ply shall consist of a 900 mm wide sheet.

.3 Embed modified bituminous base sheet flashings in a solid mopping of hot asphalt at a minimum application temperature of 230oC and at a minimum rate of 1.2 kg/m2.

.4 Install modified bituminous cap sheet flashings with full adhesive contact using the propane torch welding method following manufacturer's recommendations.

.5 Install base and cap sheet flashings in maximum one metre wide strips.

.6 Lap base sheet flashing over the roofing membrane a minimum of 200 mm. Lap cap sheet flashing over roofing membrane a minimum of 300 mm.

.7 Cut, mitre and weld corners.

.8 Extend modified bituminous base sheet and cap sheet flashing over parapets, roof edges and down the outside face of walls. Secure membrane flashing with large head galvanized nails at 150 mm on centre.

.9 Apply butyl based sealant, in accordance with Section 07 92 00, along membrane flashing terminations where indicated on Drawings and at locations and where membrane flashings terminate at the base of a wall (horizontal and vertical terminations).

.10 Tie-in new roofing system with adjacent existing roofing system as indicated on Drawings and in accordance with the manufacturer’s recommendations for the products used. All products to be compatible with the existing and new roofing system components.

3.10 Asphalt Flood Coat and Aggregate Cover

.1 Pour hot asphalt at a rate of 3.6 kg/m2 over the roof membrane surface and while hot, embed 30 kg/m2 of specified aggregate.

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.2 Provide a double pour of asphalt floodcoat and aggregate cover at the following locations:

.1 1200 mm wide strip along roof perimeter, curbs, and sleeper supports.

.2 1000 mm diameter around all round roof penetrations.

.3 Under all precast concrete pavers.

.3 Apply the double pour in the following manner:

.1 Sweep away all loose aggregate from the first application of asphalt floodcoat and aggregate cover in areas to receive a double pour.

.2 Apply a second pour of hot asphalt at a rate of 3.6 kg/m2 and while hot, embed 30 kg/m2 of specified aggregate.

3.11 Roof Drains

.1 Install new roof drains at existing roof drain locations, where indicated on Drawings, in strict accordance with manufacturer's recommendations.

.2 Connect the roof drain to existing rainwater leader using the mechanical coupling following the manufacturer's recommendations.

.3 Embed deck flange in a layer of mastic and prime top surface. Install roof membrane continuously over flange. Coat top ply and install clamping ring in a bed of mastic sealant.

.4 Ensure roof drains are clear of debris and free draining at project completion.

3.12 Vent Pipes

.1 Install the vent stack flashings in strict accordance with manufacturer's recommendations.

.2 Embed deck flange in a layer of mastic.

.3 Flash into the roofing membrane using 3 plies of felt in general accordance with CRCA standard flashing detail FL. 22.

.4 Insulate all sleeves with loosely packed glass fibre insulation or spray in place polyurethane foam insulation. Seal openings between flashings and pipes with sealant, as specified in Section 07 92 00, sloped to shed water.

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3.13 Exhaust Vent, Conduit Penetration and Metal Chimney Sleeve Flashings

.1 Install penetration sleeve flashings in strict accordance with manufacturer's recommendations.

.2 Embed deck flange in a layer of mastic.

.3 Flash into the roofing membrane using 3 plies of felt in general accordance with CRCA standard flashing detail FL. 22.

.4 Insulate all sleeves (with the exception of hot pipes) with loosely packed glass fibre insulation or spray in place polyurethane foam insulation. Seal openings between flashings and pipes with sealant, as specified in Section 07 92 00, sloped to shed water.

.5 Apply silicone sealant, as specified in Section 07 92 00, at joint between storm collar and penetration.

3.14 Copper Sleeve Flashing

.1 Install copper sleeve flashings at specified existing gas line penetrations and at existing penetrations and protrusions where no other sleeve flashing is specified.

.2 Form and install copper sleeve flashing in accordance with Section 07 62 00, Sheet metal Flashings and Trim.

.3 Embed deck flange in a layer of mastic.

.4 Flash into the roofing membrane using 3 plies of felt in general accordance with CRCA standard flashing detail FL. 22.

.5 Insulate all sleeves with loosely packed glass fibre insulation or spray in place polyurethane foam insulation. Seal openings between flashings and pipes with sealant, as specified in Section 07 92 00, sloped to shed water.

.6 Install sheet metal storm collars fully sealed to roof penetration with silicone sealant. Apply silicone sealant in accordance with Section 07 92 00.

3.15 Gas Line, Electrical Conduit and Pipe Supports

.1 Install gas line supports along the existing gas lines and pipes in accordance with the manufacturer's recommendations.

.2 Install gas line supports after roof membrane and double pour asphalt floodcoat /aggregate cover is complete.

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.3 Space gas line supports in accordance with the specified requirements of the Ontario Gas Utilization Code; Table 8.9.3, entitled Spacing of Supports for Piping.

.4 Install gas line support bases over 25 mm thick rigid foam insulation underlayment on new and existing roofs. Cut rigid foam insulation underlayment to match size of support base.

.5 Adjust each support to ensure equal distribution of weight after installation of all supports.

3.16 Precast Concrete Pavers

.1 Install precast concrete pavers where specified in Section 01 11 00.

.2 Install precast concrete pavers over 25 mm thick rigid foam insulation underlayment on new and existing roofs. Cut rigid foam insulation underlayment to match size of paver.

.3 Provide 50 mm space between adjacent rigid foam insulation underlayment boards to allow drainage.

.4 Install precast concrete pavers after roof membrane and double pour asphalt floodcoat /aggregate cover is completed.

3.17 Cleaning

.1 Daily as the work proceeds and on completion, remove all surplus materials and debris resulting from the foregoing work.

.2 Remove all stains, asphalt, caulking or other adhesive related to specified roof replacement work and as determined by the Consultant, from all affected surfaces including vent pipe and chimney flashings, roof drain strainer baskets, gas lines and conduits, walls, etc.

End of Section 07 51 23

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Part 1 - General

1.1 General

.1 All conditions of the contract and Division 1, General Requirement apply to this section.

.2 All work shall meet the requirements of the 2006 Ontario Building Code, the Canadian Roofing Contractors Association (C.R.C.A.), CGSB 93-GP-3M Standard, and the CSSBI Bulletin B9-83, including all amendments up to project date.

1.2 Coordination

.1 Co-ordinate work under this section with work of related sections.

1.3 Related Work Specified Elsewhere

.1 Rough Carpentry: Section 06 10 00

.2 Conventional Built-Up Bituminous Roof Membrane System Section 07 51 23

.3 Sealants: Section 07 92 00

.4 Mechanical Work: Section 22 14 26

1.4 Scope of Work

.1 Supply all materials, labour and equipment required to fabricate and install sheet metal flashings and membrane underlayment specified in Section 01 11 00 to the full intent of Drawings and Specifications.

1.5 Mock-Up

.1 Construct full size mock-ups of the prefinished sheet metal cap and counter flashings for typical parapet and roof edge conditions. Mock-ups to include all typical components, and specified colour.

.2 Locate mock-ups at specific areas designated by the Consultant.

.3 Mock-up will serve for initial review purposes by the Consultant and Owner and, when accepted, shall represent the minimum standard for work.

.4 All materials used for mock-up must be in complete accordance with this Specification.

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1.6 Samples

.1 Submit to the Consultant for review prior to sheet metal fabrication and installation a sample of the overflow scupper in accordance with Section 01 11 50.

.2 Samples shall meet all specification requirements.

1.7 Protection

.1 Protect the work of this section from damage. Damaged work which cannot be satisfactorily repaired, restored or cleaned, shall be replaced at no cost to the Owner.

1.8 Delivery and Storage

.1 Deliver and store materials to manufacturer's instructions and CSSBI guidelines.

.2 Do not store material on roof.

.3 Store materials under cover on elevated platforms, protected from weather and construction activities.

.4 Remove and replaced damaged material.

1.9 Warranty

.1 Refer to Article 1.8 of Section 07 51 23 for warranty requirements.

.2 Provide all applicable material and material / labour warranties offered by the material manufacturers.

.3 Defective sheet metal installation covered under the warranty shall include but not be limited to, loss of securement, corrosion, fading of finish, change of colour and staining of adjoining or adjacent materials or surfaces.

.4 Carry out all replacement and repair work during the warranty period as directed by the Consultant and at no additional cost to the Owner.

.5 Inspect the sheet metal installation 60 days before expiry of warranty and correct defects within 15 days of inspection. This inspection shall be performed at no additional cost to the Owner.

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1.10 Reference Standards

.1 ASTM A 525M-80, Standard Specification for Sheet Steel, Zinc Coated (Galvanized) by the Hot Dipped Process, General Requirements.

.2 CGSB 93-GP-3M, Sheet, Steel, Galvanized Pre-finished Residential, Reaffirmed December 1985.

.3 Canadian Sheet Steel Building Institute (CSSBI) Bulletin No. 9, Core and Maintenance of Pre-finished Sheet Steel Building Products, August, 1983.

Part 2 - Products

2.1 Materials

.1 Prefinished sheet metal: Galvanized steel, 0.71 mm (24 ga) core nominal thickness, Z275 zinc coating to ASTM A525M-80. Finish to be Stelco's 8,000 series or an approved equivalent. Colour to be approved by the Owner from the 12 standard colours listed in CSSBI's General Colour Card.

.2 Prefinished aluminum: to CGSB 93-GP-2Ma, 0.60 mm (22 ga) core nominal thickness. . Finish to be Stelco's 8,000 series or an approved equivalent. Colour to be approved by the Consultant

.3 Galvanized sheet metal: Galvanized sheet steel, Z275 zinc coating to ASTM A525M-80. Thickness as specified or indicated on Drawings

.4 Stainless Steel: 0.47 mm (26 ga) utility grade.

.5 Starter strips: Galvanized steel, 0.87 mm (22 ga) core nominal thickness, Z275 zinc coating to ASTM A525M-80. Finish and colour to match prefinished sheet metal where exposed. Starter strips to be continuous.

.6 Banding strip / termination bar: hot dipped galvanized sheet steel, 3 mm core nominal thickness, Z275 coating designation to ASTM A525M-80, 25 mm wide.

.7 Copper: 0.8 mm (16 oz.) cold rolled copper to ASTM B370-81.

.8 Solder: to ASTM B32-76, lead free.

.9 Flux: Commercial preparation suitable for materials to be soldered.

.10 Isolation coating: alkali resistant bituminous paint.

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.11 Nails: to CSA B111-1974, hot dipped galvanized steel flat head roofing nails of length and thickness to suit application.

.12 Fasteners for masonry and concrete: Tapcon fasteners with "Climaseal" corrosion resistant finish, or an approved equivalent, of sufficient length to provide a minimum 38 mm penetration into substrate.

.13 Split storm collar: 1.6 mm thick two piece aluminum storm collar complete with neoprene gasket, stainless steel nuts and bolts as manufactured by Thaler Roofing Specialties Products Inc. or an approved equivalent. Diameter to suit application. Storm collar to be of sufficient size to extend a minimum of 25 mm below the top of copper sleeve flashing.

.14 Touch-up paint: as recommended by the prefinished sheet metal manufacturer.

2.2 Membrane Underlayment

.1 Membrane underlayment: Composite self adhering membrane comprised of rubberized or modified asphalt and polyethylene such as Vycor Ice and Watersheild as manufactured by W. R. Grace & Co. of Canada Ltd., Blueskin SA as manufactured by Bakor Inc. or an approved equivalent.

.2 Membrane underlayment primer: as supplied or recommended by the membrane underlayment manufacturer.

.3 Membrane underlayment sealant: as supplied or recommended by the membrane underlayment manufacturer.

2.3 Fabrication - General

.1 Fabricate cap flashings, counter flashings, roof edge flashings, drip flashings, closures, starter strips, and other miscellaneous sheet metal work with prefinished sheet metal in general accordance with applicable CRCA 'FL' series specifications and / or as indicated on Drawings. Do not provide a gravel stop upturn on the roof edge flashings.

.2 Use competent mechanics and work accurately to details indicated and as herein specified.

.3 Fabricate cap flashings, starter strips, and base counter flashings less than 300 mm in height in 2400 mm maximum lengths. Form counter flashings between 300 mm and 600 mm in height in 1200 mm maximum lengths.

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.4 Provide a counter flashing and an intermediate vertical flashing where the cap flashing is greater than 600 mm above the top of the roofing membrane. Form vertical flashings in 1200 mm maximum lengths.

.5 Provide an "S-Lock" joint at all end joints and at all horizontal joints between the cap flashing and the vertical flashing and between the vertical flashing and base counter flashing.

.6 Mitre and form standing seams at all corners. Make allowance for movement at joints.

.7 Hem all exposed edges at least 12 mm for appearance and stiffness.

.8 Form sections square, true, and accurate to size, free from distortion, oil canning and other defects detrimental to appearance or performance.

.9 Apply isolation coating to metal surfaces to be embedded in concrete or mortar joints.

2.4 Copper Sleeve Flashing Fabrication

.1 Fabricate sleeve flashing for existing penetrations from copper or stainless steel.

.2 Provide a two piece or split sleeve with a minimum height of 300 mm.

.3 Fabricate deck flange to provide a 150 mm wide apron. Ensure flange is continuous by filling in outside corners. Apply isolation coating on deck flange.

.4 Fabricate sleeve and flange with flat lock joints suitable for field soldering.

2.5 Down spout Fabrication

.1 Fabricate seamless down spouts from prefinished aluminum. Thickness to be 0.60 mm (22 ga) core nominal thickness.

.2 Down spouts to be a corrugated rectangular in shape. Sized to match existing and to suit existing rainwater leaders.

.3 Provide purpose made end caps, outside mitre corners, inside mitre corners, outlets, elbows and metal support brackets. Material type, thickness and colour to match the eaves troughs and down spouts.

.4 Provide purpose made galvanized metal support brackets. Bracket shall be of a size and thickness required to provide secure anchorage of the eaves trough. Sample to be reviewed by the Consultant.

.5 Provide basket strainers for outlets.

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Part 3 - Execution

3.1 Installation

.1 Install cap flashings, counter flashings, starter strips, and other miscellaneous sheet metal work in general accordance with applicable CRCA 'FL' series specifications and/or as detailed on Drawings.

.2 Ensure parapet cap flashings are installed with a minimum positive slope of 5% toward the roof area. Slope to be provided by installation of continuous wood shims and plywood or wood blockings which shall be provided in accordance with Section 06100.

.3 Do not use exposed fasteners unless approved before installation or where shown on Drawings.

.4 Provide membrane underlayment beneath sheet metal flashings at all locations, except where membrane flashings are present. Install membrane underlayment in accordance with Article 3.2 of this section.

.5 Provide continuous starter strips where indicated or required to present a true, non-waving, leading edge. Fasten starter strips to substrate at a minimum of 300 mm on centre.

.6 Provide continuous banding strips / termination bar along top of membrane flashings where indicated on Drawings and at locations and where membrane flashings terminate at the base of a wall and no other means of mechanical securement is specified or indicated. Fasten banding strips to substrate at a minimum of 150 mm on centre.

.7 End joints where adjacent lengths of metal flashing meet shall be made using an "S-lock" joint. This shall be executed by inserting the end of one length in a 25 mm deep "S" lock formed in the end of the adjacent length. Provide a full bead of sealant within the "S-lock" joint. Concealed portion of the "S" lock shall extend 25 mm outwards and shall be nailed to substrate. Face nailing of joints will not be permitted.

.8 Insert top edge of sheet metal flashing under cap flashings to form weather tight junctions. Turn top edge of flashings into recessed reglets or mortar joints a minimum of 25 mm. Fasten sheet metal flashing into reglet joint at a minimum spacing of 450 mm.

.9 Ensure fasteners are located a minimum of 300 mm above the surface of the roofing membrane, unless other wise indicated on Drawings.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 7 - Section 07 62 00 Toronto, Ontario SHEET METAL FLASHINGS & TRIM Page 7 of 8

3.2 Membrane Underlayment

.1 Install membrane underlayment under sheet metal flashings as indicated on Drawings and as per Manufacturer's printed instructions.

.2 Ensure all surface areas are free from frost, dust, grease, oil, loose or spalled material.

.3 Apply primer as per Manufacturer's printed instructions. Allow the primer to dry and install air barrier membrane on the same day as priming.

.4 Proceed only when weather is favourable. Should installation be undertaken at temperature below 4oC, consult manufacturer regarding special procedures.

.5 Maintain the recommended minimum sidelap and endlap as per the manufacturer's printed instructions.

.6 Roll the membrane underlayment immediately after placement to ensure continuous adhesion. The roller to be of the type and size recommended by the manufacturer.

.7 Ensure the continuity of the membrane underlayment is maintained at all penetrations and terminations. Apply membrane sealant as required to fill inaccessible gaps following the manufacturer's instructions.

.8 Do not cover the membrane underlayment until it is reviewed and approved by the Consultant.

3.3 Copper Sleeve Flashing

.1 Apply isolation coating on surface of penetration.

.2 Install copper sleeve flashing around penetrations.

.3 Close and solder all joints and seams. Clean copper on joint surfaces to receive solder with steel wool. Flux and fill joints with molten solder.

.4 Wipe and wash clean all traces of acid from the flux immediately after the joints are made.

.5 Install split storm collar in strict accordance with manufacturer's recommendations. Apply silicone sealant, as specified in Section 07 92 00, at joint between storm collar and gas line penetration.

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3.4 Cleaning

.1 Daily as the work proceeds and on completion, remove all surplus materials and debris resulting from the foregoing work.

.2 Remove all stains, caulking or other adhesive from all affected surfaces.

End of Section 07 62 00

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 7 - Section 07 92 00 Toronto, Ontario SEALANTS

Page 1 of 6

Part 1 - General

1.1 General

.1 All conditions of the contract and Division 1, General Requirements apply to this section.

.2 All work shall meet the requirements of the 2006 Ontario Building Code, including all

amendments up to project date.

.3 Execute work to the highest standards of workmanship in the industry, by fully trained applicators in strict accordance with the written application instructions from the

manufacturer.

1.2 Coordination

.1 Co-ordinate work under this section with work of related sections.

1.3 Related Work Specified Elsewhere

.1 Selective Demolition and Removal: Section 02 41 00

.2 Rough Carpentry: Section 06 10 00

.3 Conventional Built-Up Bituminous Roof Membrane System Section 07 51 23

.4 Sheet Metal Flashings & Trim: Section 07 62 00

.5 Mechanical Work: Section 22 14 26

1.4 Scope of Work

.1 Supply all materials, labour and equipment required for the application of sealants and backing specified in Section 01 11 00 to the full intent of Drawings and Specifications.

1.5 Job Conditions

.1 Ensure all surfaces to receive primer or sealant are clean and dry.

.2 Apply sealants at air and substrate temperatures not less than the minimum recommended by the material manufacturer. Work shall not be carried out during

inclement weather conditions.

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Page 2 of 6

1.6 Protection

.1 Protect surrounding areas and surfaces from damage during work of this section.

.2 Prevent precipitation and debris from entering openings during work.

1.7 Delivery and Storage

.1 Deliver and store materials to manufacturer's instructions.

.2 Store materials under cover on elevated platforms, protected from weather and construction activities at a location(s) approved by the Owner and Consultant.

.3 Protect materials from freezing. Materials suspected of having been subjected to

freezing are not to be used unless the Manufacturer verifies in writing the material has not been damaged.

.4 Deliver and store materials in original packages with labels intact.

.5 Remove and replace damaged, wet or broken materials.

.6 Store materials away from open flame or ignition sources.

.7 Do not transport any materials through the building.

1.8 Warranty

.1 Refer to Article 1.8 of Section 07 51 23 for warranty requirements.

.2 Provide all applicable material and material / labour warranties offered by the material manufacturers.

.3 Defective joint sealant installation covered under the warranty shall include but not be limited to, joint leakage, hardening, cracking, crumbling, melting, bubbling, shrinkage, running, sagging, change of colour, loss of adhesion, loss of cohesion and staining of

adjoining or adjacent materials on surfaces.

.4 Carry out all replacement and repair work during the warranty period as directed by the Consultant and at no additional cost to the Owner.

.5 Inspect the sealant work 60 days before expiry of warranty and correct defects within 15 days of inspection. This inspection shall be performed at no additional cost to the Owner.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 7 - Section 07 92 00 Toronto, Ontario SEALANTS

Page 3 of 6

1.9 Reference Standards

.1 CAN/CGSB 19.13-M87, Sealing Compound, One-Component, Elastomeric, Chemical Curing

.2 CGSB 19-GP-14M, Sealing Compound, One-Component, Butyl-Polyisobutylene

Polymer Base, Solvent Curing.

Part 2 - Products

2.1 Materials

.1 Compatibility: All materials in a sealant system shall be compatible with each other and with the substrate.

.2 Sealants: One part elastomeric, non-sag urethane based sealant to CAN/CGSB 19.13-M87. Acceptable products:

.1 Dymonic as manufactured by Tremco Ltd.;

.2 or approved equivalent.

.3 Silicone sealants: Silicone based sealant to CAN/CGSB 19.13-M87. Acceptable products:

.1 Spectrum 2 as manufactured by Tremco Ltd.;

.2 or approved equivalent.

.4 Butyl sealants: Butyl rubber and polyisobutylene blend sealant in accordance with

CGSB 19-GP-14M, such as Tremco Butyl Sealant as manufactured by Tremco or an approved equivalent. Butyl sealant to be compatible with modified bituminous membrane flashings.

.5 Colour or colours of sealants shall be selected to match the substrate and shall be approved by the Consultant.

.6 Primer: As recommended by the sealant manufacturer to assure adhesion of

compound and to prevent staining of substrate materials.

.7 Joint Backing: Polyethylene, urethane, neoprene or vinyl, extruded foam recommended by the sealant manufacturer. Circular shape with diameter 25 percent

greater than joint width before installation.

.8 Bond Breaker Tape: Pressure sensitive plastic tape, which will not bond to sealants, as supplied or recommended by the sealant manufacturer.

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Page 4 of 6

.9 Void Filler: Glass fibre insulation with a nominal density of 14 kg/m3. Sized for 25% compression.

.10 Cleaning Material: as recommended by sealant manufacturer.

Part 3 - Execution

3.1 Examination

.1 Inspect existing conditions, and substrates upon which work of this section is dependent. Report to the Consultant in writing any defects or discrepancies.

Commencement of work implies acceptance of existing conditions and assuming full responsibility for the finished condition of the work.

.2 Verify, before commencing work, that the joint size, depth and substrate will not

adversely affect execution, performance or quality of completed work; and that the joints can be sealed in an acceptable condition by means of preparation specified in this section. Verify site conditions together with sealant manufacturer's representative.

.3 Defective work resulting from application to unsatisfactory joint conditions will be considered the responsibility of those performing the work of this section.

3.2 Removal and Preparation

.1 Remove existing sealant and backing material, dust, oil, grease, oxidation, millscale,

coatings and all other loose material by cutting, brushing, scrubbing, scraping, and / or grinding. Use method of surface preparation suitable for substrate, as recommended by sealant manufacturer, and which does not damage the adjacent surfaces.

.2 Rake out joints, cracks and crevices to receive sealant, to a depth measuring half the joint width.

.3 Clean down surfaces to be caulked with clean cellulose sponges or rags soaked in

solvent recommended by the sealant manufacturer, and wipe dry with clean cloth. Ensure that the solvent does not damage the painted surfaces.

3.3 Application

.1 Apply sealant in compliance with sealant manufacturer's recommendations.

.2 Prime surfaces to receive sealants as required by sealant manufacturer's recommendations to provide a positive and permanent adhesion and to prevent staining. Prime surfaces prior to installing backing material or bond breaking tape.

Apply primers per manufacturer's directions and test substrates for adhesion.

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Page 5 of 6

.3 Install backing material in all joints prior to applying sealants. Diameter of the backing material shall be 25 percent more than the width of the joint.

.4 Install backing material to provide a caulked joint meeting the depth requirements as

set out in the sealant manufacturer's specifications.

.5 Apply bond breaker tape, prior to applying sealant, where joints are of insufficient size to install backer rod or where recommended by the sealant manufacturer or Consultant.

Ensure bond surface area meets the minimum required size recommended by the sealant manufacturer.

.6 Mask, with masking tape, all surfaces adjacent to joints which are likely to become

coated with sealant during sealant application.

.7 Fill joints completely to required depths with sealant compound. Use sufficient pressure to fill all voids and joints. Sealant shall bond to both sides of the joints but not

to backing material.

.8 Finish joints so that they are smooth and free from ridges, wrinkles, air pockets and embedded foreign materials.

.9 Tool joints to a slightly concave surface.

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Page 6 of 6

3.4 Cleaning

.1 Remove masking tape and sealant smears and droppings resulting from work of this section as the work progresses and before it has set. Use recommended cleaners as required.

.2 Clean up and remove from the job site on a daily basis, all rubbish and surplus materials resulting from this work.

End of Section 07 92 00

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 22 - Section 22 14 26 Toronto, Ontario MECHANICAL WORK Page 1 of 4

Part 1 - General

1.1 General

.1 All conditions of the contract and Division 1, General Requirements apply to this section.

2 All work shall meet the requirements of the 2006 Ontario Building Code, and the Ontario Plumbing Code, including all amendments up to project date.

1.2 Coordination

.1 Co-ordinate work under this section with work of related sections.

1.3 Related Work Specified Elsewhere

.1 Selective Demolition and Removal: Section 02 41 00

.2 Rough Carpentry: Section 06 10 00

.3 Conventional Built-Up Bituminous Roof Membrane System Section 07 51 23

.4 Sheet Metal Flashings & Trim: Section 07 62 00

.5 Sealants: Section 07 92 00

1.4 Scope of Work

.1 Supply all materials, labour and equipment and services required to perform mechanical work specified in Section 01 11 00 to the full intent of Drawings and Specifications.

1.5 Protection

.1 Protect finished roofing at work areas or access to work areas with minimum 13 mm plywood underlaid with 25 mm extruded polystyrene insulation board (Type 4) extending 900 mm beyond work area.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 22 - Section 22 14 26 Toronto, Ontario MECHANICAL WORK Page 2 of 4

1.6 Qualifications

.1 All work shall be performed by a contractor with adequate plant, equipment and skilled licensed trades people to perform the work expeditiously and shall be known to have been responsible for satisfactory work similar to that specified during a period of at least the past 5 years.

Part 2 – Products

2.1 Materials

.1 Cast iron pipe: DWV type cast iron piping to CAN3-B70-M86. Diameter to match existing and as indicated on Drawings.

.2 Fittings: Cast iron to CAN3-B70-M86 complete with neoprene gaskets and stainless steel bolts and nuts.

.3 Pipe insulation: Mineral fibre pipe insulation to CAN/CGSB 51.9-92 as manufactured by Roxal Canada Inc. or an approved equivalent. Thickness to be 50 mm. Provide an all service jacket (ASJ) for concealed rainwater leaders and an aluminum jacket for all exposed rainwater leaders.

.4 Mechanical joints: Neoprene or butyl rubber gasket with stainless steel clamp type joint to CGSB 77-GP-2a.

.5 Drain Connector: Fernco Couplings with 2 stainless steel gear clamps per end.

.6 Fire stop and smoke seal: ULC design system No. SP375. All materials shall be ULC listed and labelled in accordance with CAN4-S115-M85. Materials shall not contain asbestos. Acceptable manufacturer is: Tremco Ltd.

Part 3 - Execution

3.1 Examination

.1 Examine site conditions and surfaces to ensure that they are in satisfactory condition for the commencement of the work of this section.

.2 Examine work of other trades for defects and discrepancies and report them to the Consultant in writing. Do not proceed with work until surfaces are satisfactory.

3.2 General Installation

.1 Perform work as specified and in accordance the manufacturers' printed instructions.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 22 - Section 22 14 26 Toronto, Ontario MECHANICAL WORK Page 3 of 4

.2 Where manufacturers' printed instructions are not available, or a situation is ambiguous or unique, consult the Manufacturer's Technical Representative and the Consultant to review the situation and make clarifications. Instructions will be confirmed in writing by the Consultant.

3.3 Mechanical Units and Mechanical and Electrical Components

.1 Shut off, disconnect, remove, store for reinstallation or raise existing mechanical units and all related ductwork, gas lines, piping and electrical components as required to permit roofing installation.

.2 Disconnect all electrical conduits as required to permit installation of new sleeve flashings.

.3 Modify or replace all related ductwork, gas lines, piping and electrical components as required to accommodate the increased curb height.

.4 Reinstall mechanical units onto existing raised curbs. Reconnect all ductwork, gas lines, pipes and electrical conduits. Restart and check the operation of all equipment.

.5 Perform this work promptly to minimize any disruption of service. Service shall not be interrupted without approval from the Owner and the Consultant.

3.4 Vent Pipes

.1 Cut or extend existing vent pipes a standard 300 mm above height of new roofing membrane.

.2 Extend cast iron pipes with an additional section of cast iron pipe of same diameter and wall thickness. Secure additional section of cast iron pipe to existing with clamping ring.

.3 Copper pipes shall be extended by welding an additional section of copper pipe having the same diameter as the existing pipe.

.4 Cut pipes with approved cutters. Damaged pipes shall be repaired at no additional cost to the Owner's.

3.5 Drain Connection

.1 Remove existing drains to below the deck level.

.2 Ensure existing rainwater leader piping and insulation is not damaged during removal. Repair any damaged materials.

.3 Connect new drains to existing piping with mechanical coupling as specified.

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Roof Replacement Project, Cumber/West Rouge Pumping Station Division 22 - Section 22 14 26 Toronto, Ontario MECHANICAL WORK Page 4 of 4

.4 Reinstate insulation to the underside of the drain hub where required.

3.6 Pipe Insulation

.1 Insulate existing and new rainwater drainage piping with pipe insulation in accordance with the manufacturers recommendations where installation of new drains requires additional piping.

.2 Apply insulation with all side and end joints butted tightly. Seal side laps in all service jacket. Seal end joints in pipe insulation with reinforced vapour proof tape.

.3 Insulate fittings and roof drain body with purpose made preformed fittings or mitred segments of pipe insulation. Seal with reinforced vapour proof tape.

3.7 Fire Stopping and Smoke Seals:

.1 Notify the Consultant in writing of all penetrations made through existing walls, and ceiling assemblies.

.2 Install fire stop and smoke seal assembly in accordance with ULC design system No. SP375. Prepare substrates in accordance with the manufacturer's recommendations. Center rainwater leader in openning and ensure joint sizes are not less than the minimum required bythe ULC design. Apply sealant on both sides of opening.

.3 Provide rigid supports for rainwater leader on both sides of wall assembly.

.4 Review with the Consultant any situation which is ambiguous or unique. Instructions will be confirmed in writing by the Consultant.

3.8 Cleaning

.1 Clean up and remove from the job site on a daily basis, all rubbish and surplus materials resulting from this work.

End of Section 22 14 26

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Apply only when air and surface temperatures are above 32°F (0°C) andsurface temperature is at least 5°F (3°C) above the dew point and nofrost or ice is present on the substrate. Avoid exterior painting late inthe day when dew or condensation are likely to form or when rain isthreatening. These products may be applied to damp surfaces. Whenexcessive dampness is observed, the surface appears to shine frommoisture or there is standing water. Do not apply under theseconditions. Hot rolled steel should be prepared by abrasive blastcleaning whenever possible. These products lose gloss and chalk onexterior exposure, however film integrity is not affected. Do not topcoatwith alkyd-oil coatings. For Professional Use Only; Not Intended forHousehold Use. Not for immersion service. Drying times listed mayvary depending on temperature, humidity, color and air movement.

PITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic Coatings

Perfect for a variety of corrosive and non-corrosive environments.Barrier coat corrosion protectionExcellent adhesion to minimally prepared surfaces.Virtually infinite color capability with PERFORMACOLOR®systemNo topcoat needed for corrosion protection

PITT-GUARD® Rapid Coat Direct-To-Rust Epoxy is intended forinterior/exterior use where barrier type protection is required for steel,aluminum, hot dipped galvanized steel and masonry surfaces. Its'excellent wetting properties allow application and good performanceover tightly adhering rust. Excellent performance is obtained overabrasive blasted surfaces.

HPC/Industrial MaintenanceHPC/Industrial MaintenanceHPC/Industrial Maintenance

F8F8

General Description

Tinting and Base Information

Recommended Uses

Features / Benefits

Limitations of Use

Generic TypePolyamide-Epoxy Two ComponentPolyamide-Epoxy Two ComponentPolyamide-Epoxy Two Component

AluminumConcreteHot Dipped Galvanized SteelSteel

Use PERFORMACOLOR® Colorants and refer to thePERFORMACOLOR formula book for tinting instructions.PERFORMACOLOR System HN and HZ tints may cause colorvariations when used in PITT-GUARD Rapid Coat products. PPGdoes not recommend adding ANY HN or HZ tints to these products.

95-240095-240095-2400 Neutral Base95-240295-240295-2402 Yellow Base95-241295-241295-2412 White Base95-24295-24295-242 Inhibitive Red Oxide95-24595-24595-245 Porcelain White95-24795-24795-247 Cream95-24895-24895-248 Medium Gray95-24995-24995-249 Curing Agent, Component B

Product DataSemi-GlossSemi-GlossSemi-GlossGloss:Gloss:2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/L2.19 lbs/gal 263.00 g/LVOC*:VOC*:

Note: Does not include loss due to varying application method, surface porosity, or mixing.Coverage: 160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)160 to 280 sq ft/gal (15 to 21 sq. m/3.78L)

4.0 minimum to 7.0 maximum4.0 minimum to 7.0 maximum4.0 minimum to 7.0 maximum4.0 minimum to 7.0 maximum4.0 minimum to 7.0 maximum4.0 minimum to 7.0 maximum4.0 minimum to 7.0 maximum4.0 minimum to 7.0 maximumDFT:11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)11.8 lbs. (5.4 kg) +/- 0.3 lbs. (136 g)Weight/Gallon*:Weight/Gallon*:Weight/Gallon*:Weight/Gallon*:70% +/- 2%70% +/- 2%70% +/- 2%70% +/- 2%Volume Solids*:Volume Solids*:81.5% +/- 2%81.5% +/- 2%81.5% +/- 2%81.5% +/- 2%81.5% +/- 2%81.5% +/- 2%Weight Solids*:Weight Solids*:

Mix Ratio:Mix Ratio: 1 to 1 by Volume1 to 1 by Volume1 to 1 by Volume1 to 1 by VolumeClean-up: 97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG Thinners97-725,97-727,97-734 PPG ThinnersResults will vary by color, thinning and other additives.*Product data calculated on mixed 95-245*Product data calculated on mixed 95-245*Product data calculated on mixed 95-245*Product data calculated on mixed 95-245*Product data calculated on mixed 95-245Drying Time:Drying Time:

To Touch:To Touch: 4 hours4 hoursTo Handle:To Handle: 8 hours8 hoursTo Recoat:To Recoat: 3 hours3 hours

Dry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidityDry Time @77°F (25°C); 50% relative humidity

Pot Life:Pot Life: maximum 3 hoursmaximum 3 hoursmaximum 3 hoursInduction Time:Induction Time: 15 minutes recommended 15 minutes recommendedFlash Point:Flash Point: 95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)95-245 62°F, (16.7°C)

95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)95-249 80°F, (26.7°C)

95-245 Series95-245 Series95-245 Series95-245 SeriesPITT-GUARD®PITT-GUARD®PITT-GUARD®PITT-GUARD®

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PPG Industries, Inc.Architectural CoatingsOne PPG PlacePittsburgh, PA 15272www.ppghpc.com

PITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic CoatingsPITT-GUARD® Rapid-Coat Direct-to-Rust Epoxy Mastic Coatings

Recommended Spread Rates:

Packaging:

Wet Mils :

Dry Mils :

minimum to maximum

minimum to maximum

HPC/Industrial MaintenanceHPC/Industrial MaintenanceHPC/Industrial Maintenance

The surface to be coated must be dimensionally stable, dry, clean, and free of oil, grease, release agents, curing compounds, and other foreign materials.Prime bare areas with a suitable primer. WARNING! If you scrape, sand, or remove old paint, you may release lead dust or fumes. LEAD ISTOXIC. EXPOSURE TO LEAD DUST OR FUMES CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY INCHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a properly fitted NIOSH-approved respirator and prevent skincontact to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself andyour family by contacting the USEPA National Lead Information Hotline at 1-800-424-LEAD or log on to www.epa.gov/lead. In Canada contact aregional Health Canada office. Follow these instructions to control exposure to other hazardous substances that may be released during surfacepreparation.STEEL: Non-Immersion Service: Minimum surface preparation for ferrous metal substrates is wire brush (SSPC-SP2/3) to remove all loose rust andpaint. Service life of coating is in direct proportion to surface preparation.ALUMINUM: Solvent Clean per SSPC-SP1 to remove grease and oils.CONCRETE, STUCCO, PLASTER, MASONRY other than CMU: Allow all concrete, mortar, plaster, etc. to cure for thirty (30) days undernormal drying conditions and have a moisture content of less than 8%. Remove all dirt, dust, grime, loose mortar and all other forms of contamination.Concrete which has been treated with curing compounds or hardeners, should be thoroughly abraded.CMU: Allow the mortar to cure for thirty (30) days under normal drying conditions.FERROUS METAL: The minimum surface preparation is Hand Tool or Power Tool Clean per SSPC-SP2 or SP3.GALVANIZED STEEL: Solvent Clean per SSPC-SP1 to remove grease and oils. If any oxidation (white rust) has formed, sand and remove all formsof contamination. If the galvanized has been passivated or stabilized, the surface must be abraded, i.e., Brush-Off Blast Clean per SSPC-SP7 orchemically treat the surface.WOOD: Sand lightly in order to remove surface roughness and loose wood fibers. Then remove all dirt, dust, grime and any other forms ofcontamination. Remove grease and oils by Solvent Cleaning per SSPC-SP1.

General Surface Preparation

Recommended Primers Application InformationRefer to Surface PreparationRecommendations.

none

6.06.06.0 10.010.010.0

4.04.04.0 7.07.07.0152.0152.0152.0 254.0254.0254.0

102.0102.0102.0 178.0178.0178.0

minimum to

minimum to

maximum

maximum

Material:Ambient:Substrate:

50 to 9050 to 9050 to 9032 to 11032 to 11032 to 11032 to 13032 to 13032 to 130

°F°F°F°F°F°F

10 to 3210 to 3210 to 320 to 430 to 430 to 430 to 540 to 540 to 54

°C°C°C°C°C°C

Permissible temperatures during application:

Mix components thoroughly before blending. Add Component "B" toComponent "A" and blend well using a mechanical mixer. Air or airlessspray preferred. A 15 minute digestion time is recommended.Explosion-proof equipment must be used when coating with thesematerials in confined areas. Keep containers closed and away from heat,sparks, and flames when not in use. USE WITH ADEQUATEVENTILATION. KEEP OUT OF REACH OF CHILDREN. Read alllabel and Material Safety Data Sheet (MSDS) information prior to use.MSDS available through our website or by calling 1-800-441-9695.

Directions for Use

Wet Microns:

Dry Microns:

Not all products are available in all sizes. All containers are not full-filled.

1-Gallon (3.78L)1-Gallon (3.78L)1-Gallon (3.78L)1-Gallon (3.78L)1-Gallon (3.78L)1-Gallon (3.78L)1-Gallon (3.78L)1-Gallon (3.78L)1-Gallon (3.78L) 5-Gallon (18.9L)5-Gallon (18.9L)5-Gallon (18.9L)5-Gallon (18.9L)5-Gallon (18.9L)5-Gallon (18.9L)5-Gallon (18.9L)5-Gallon (18.9L)5-Gallon (18.9L)

Application Equipment: Changes in application equipment,pressures and/or tip sizes may be required depending on ambienttemperatures and application conditions. Spray equipment must behandled with due care and in accordance with manufacturer'srecommendation. High-pressure injection of coatings into the skin byairless equipment may cause serious injury.Conventional Spray: Fluid Nozzle: DeVilbiss MBC-510 or JGAgun, with 704 or 777 air cap with E or EX tip and needle, orcomparable equipment. Atomization Pressure: 55-70. FluidPressure: (Can not specifiy, dependent on numerous factors)Airless Spray:Airless Spray: Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Pressure 1500 psi ; tip 0.017" - 0.021"Brush:Brush: Polyester/Nylon BrushPolyester/Nylon BrushPolyester/Nylon BrushRoller:Roller: Short Nap Roller Cover

Thinning:Thinning is not normally required for spray application. Overthinning will result in reduced film build properties.Conventional Spray: If necessary, up to 12 oz. per gallon with,97-727 in cool weather or 97-737 in warm weather.

95-245 Series95-245 Series95-245 Series95-245 SeriesPITT-GUARD®PITT-GUARD®PITT-GUARD®PITT-GUARD®

10/200610/200610/2006F8F8

Technical Services1-800-441-96951-888-807-5123 fax

Architect/Specifier1-888-PPG-IDEA

PPG Architectural Finishes400 S. 13th StreetLouisville, KY 40203

PPGAF believes the technical data presented is currently accurate: however, no guarantee of accuracy, comprehensiveness, or performance is given or implied.Improvements in coatings technology may cause future technical data to vary from what is in this bulletin. For complete, up-to-date technical information, visit our web site orcall 1-800-441-9695.

PPG Canada, Inc.Architectural Coatings4 Kenview BlvdBrampton, ON L6T 5E4

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