addendum no. 5 for brenham independent … elementary/addenda/addendum 5... · 10 1. sei/asce 7:...

G:\DOCS\12175\0000\C � Bidding and Related Files\C�03 � Bid Addenda�Design Change Notices

Date: April 11, 2013

ADDENDUM NO. 5 TO

CONTRACT DOCUMENTS ALTON ELEMENTARY SCHOOL

FOR BRENHAM INDEPENDENT SCHOOL DISTRICT

The following items supersede the provisions of the Drawings and Project manual and become part of the Contract Documents.

GENERAL

ITEM NO. G5.01 – ROOF PLAN SCALE

1. Note that the overall roof plan is printed at a scale of 1/16” = 1’40” (though stating NTS). The enlarged roof plans are printed at a scale of 3/32” = 1’40” (though stating NTS).

ITEM NO. G5.02 – ST41 CLARIFICATION 1. The ST41 referenced on elevations 03/A05403, 03/A07401, 05/A07404 and

14&15/A07405 is referring to cut stone veneer (Spec Section 04 42 00). The ST41 referenced in the wall sections in Area A, plan south of column line AJ are referencing the manufactured stone profile ST41 listed in standard detail 09/A06422.

ITEM NO. G5.03 – Q: Spec section 27 10 30, 2.1C references Mansfield ISD.

A: Delete reference to MISD. ITEM NO. G5.04 –

Q: Spec section 27 10 30 calls for a manufacturer’s warranty and a complete

system, but indicates the terminations are by the owner. The subcontractor cannot

provide a comprehensive warranty if the data cables are not terminated by them. A: Data cabling shall carry manufacturer's warranty for the owner installed

portion only. Owner shall provide final terminations and testing.

CORGAN ASSOCIATES, INC. 12 Greenway Plaza Houston, TX

TEL 713 425 4993

FAX

X 713 425 4994

04/11/2013

Addendum No. 5

April 11, 2013


2

ITEM NO. G5.05 –

Q: Both projects – Please confirm projectors, smart boards, and speakers will be

provided/installed by Owner. Specification 274018 indicates we are responsible

for the rapid�run cabling and speaker enclosures, and the speakers are by the

Owner, but we don’t find any specs that confirm who provides/installs the

projectors and smart boards.

A: The projectors and smart boards are owner provided. The enclosures are to be

provided by the GC for the owner provided/installed exterior intercom speakers.

The contractor is to run the classroom A/V. All intercom speakers are owner

provided/installed. The devices are shown on plans and called out in the

individual A/V specs for each school.

PROJECT MANUAL

ITEM NO. PM5.01 – SPEC SECTION 01 11 00 SUMMARY OF WORK

1. Refer to 1.3 letter 'E' and omit #1. Provide low voltage systems as specified in Specifications Division 27 and 28.

ITEM NO. PM5.02 – SPEC SECTION 06 41 16 PLASTIC4LAMINATE CLAD ARCHITECTURAL CABINETS

2. Item 2.4.O, revise as follows: Provide wood base at bottom of millwork with marine grade lumber.

3. Item 3.4.B, revise as follows: Semi4Exposed Surfaces: White Melamine. 4. Add Stevens Products, Inc. as an approved manufacturer.

ITEM NO. PM5.03 – SPEC SECTION 07 42 13 METAL SOFFIT PANELS

1. Specification section added in its entirety. ITEM NO. PM 5.04 – SECTION 08 11 13 HOLLOW METAL DOORS AND FRAMES 1. Add Metal Products, Inc. as an approved manufacturer.

ITEM NO. PM5.05 – SPEC SECTION 32 92 13 HYDROMULCH SEEDING 1. Delete this specification section added in its entirety. Ref. spec section 32 92 23 for

hydromulch requirements.

DRAWINGS

CIVIL

ITEM NO. C5.01 � SHEET C�7.0

1. Demolition of the Existing Grease Trap: See attached drawing for requirements

related to demolition of the existing grease trap that is adjacent to the location of

the new grease trap. Contractor shall disconnect and plug all existing lines

connected to the existing grease trap and then remove and dispose of the existing

grease trap. Any residual grease or other material in the existing grease trap shall

Addendum No. 5

April 11, 2013


3

be removed and disposed of by the Contractor in a safe and legal manner prior to

demolition of the existing grease trap.

ITEM NO. C5.02 � SHEET C�8.0

1. Laydown Curb on Austin St. Connector Drive (Alternate Bid): The new laydown

curb noted and shown along the northern edge of the Austin St. Connector Drive

is hereby eliminated. All curb and gutter for the Austin St. Connector Drive shall

be typical curb and gutter constructed in accordance with Detail 7 on Sheet C�9.0.

2. Intersection at Austin St. and Austin St. Connector Drive: See attached drawing

with revisions that include addition of reinforced concrete accessible ramps for

the existing sidewalk that crosses the connector drive, concrete valley gutter, and

additional pavement markings including crosswalk lines and a stop bar.

ARCHITECTURAL

ITEM NO. A5.01 – SHEET A01403 SITE PLAN – QUADRANT III 1. Detail 04: Revise 4’40” dimension to read “REF. PLAN”. Revise mow strip note to

read: “MOW STRIP, WHERE FENCING LOCATED AT GRASS AREA”

ITEM NO. A5.02 – SHEETS A06421 – A06424 WALL SECTIONS 1. Revise notes for sheathing at back of parapets to read: “SHEATHING AT BACK

OF PARAPETS TO BE 3/4" F.R. EXTERIOR GRADE PLYWOOD” ITEM NO. A5.03 – SHEET A08401 DOOR TYPES

1. Detail 02 Door Types: Delete text below door types A thru E and AA thru EE. Reference door schedule for door materials.

END OF ADDENDUM NO. 5

Kevin

Rectangle

Brenham ISD Elementary School – 12175.0000 Section 07 42 13 Addendum #5 – 11 April 2013 1 of 11 Metal Soffit Panels

SECTION 07 42 13 1 2 METAL SOFFIT PANELS 3 4 5 PART 1 , GENERAL 6 7 1.1 SUMMARY 8

9 A. Section Includes: 10

1. Metal soffit panels. 11 12 1.2 DEFINITION 13 14

A. Metal Wall Panel Assembly: Metal wall panels, attachment system components, 15 miscellaneous metal framing, thermal insulation, and accessories necessary for a complete 16 weathertight wall system. 17

18 1.3 REFERENCES 19

20 A. American Architectural Manufacturers Association 21

1. AAMA 611: Voluntary Specification for Anodized Architectural Aluminum 22 2. AAMA 621: Voluntary Specification for High Performance Organic Coatings on 23

Coil Coated Architectural Hot Dipped Galvanized (HDG) and Zinc,Aluminum 24 Coated Steel Substrates 25

26 B. ASTM International 27

1. ASTM A 653/A 653M: Specification for Steel Sheet, Zinc,Coated (Galvanized) or 28 Zinc,Iron Alloy,Coated (Galvannealed) by the Hot,Dip Process 29

2. ASTM A 755/A 755M: Specification for Steel Sheet, Metallic Coated by the Hot,Dip 30 Process and Prepainted by the Coil,Coating Process for Exterior Exposed Building 31 Products 32

3. ASTM A 792/A 792M: Specification for Steel Sheet, 55 Percent Aluminum,Zinc 33 Alloy,Coated by the Hot,Dip Process 34

4. ASTM C 645: Specification for Nonstructural Steel Framing Members 35 5. ASTM C 754: Specification for Installation of Steel Framing Members to Receive 36

Screw,Attached Gypsum Panel Products 37 6. ASTM C 920: Specification for Elastomeric Joint Sealants 38 7. ASTM C 1311: Specification for Solvent Release Sealants 39 8. ASTM D 2244: Practice for Calculation of Color Differences from Instrumentally 40

Measured Color Coordinates 41 9. ASTM D 4214: Test Methods for Evaluating the Degree of Chalking of Exterior 42

Paint Films 43 10. ASTM E 283: Test Method for Determining Rate of Air Leakage through Exterior 44

Windows, Curtain Walls, and Doors under Specified Pressure Differences across the 45 Specimen 46

11. ASTM E 331: Test Method for Water Penetration of Exterior Windows, Skylights, 47 Doors, and Curtain Walls by Uniform Static Air Pressure Difference 48


12. ASTM E 1592: Test Method for Structural Performance of Sheet Metal Roof and 1 Siding Systems by Uniform Static Air Pressure Difference 2

C. National Association of Architectural Metal Manufacturers 3 1. Metal Finishes Manual for Architectural and Metal Products. 4 5

D. Sheet Metal and Air Conditioning Contractors' National Association 6 1. Architectural Sheet Metal Manual. 7 8

E. Structural Engineering Institute/American Society of Civil Engineers 9 1. SEI/ASCE 7: Minimum Design Loads for Buildings and Other Structures 10 11

F. Underwriters Laboratories Inc. 12 1. Fire Resistance Directory. 13 14

1.4 PERFORMANCE REQUIREMENTS 15 16 A. General Performance: Metal wall panel assemblies shall comply with performance 17

requirements without failure due to defective manufacture, fabrication, installation, or 18 other defects in construction. 19

20 B. Air Infiltration: Air leakage through assembly of not more than 0.06 cfm/sq. ft. of wall 21

area when tested according to ASTM E 283 at the following test,pressure difference: 22 1. Test,Pressure Difference: 6.24 lbf/sq. ft. 23 24

C. Water Penetration under Static Pressure: No water penetration when tested according to 25 ASTM E 331 at the following test,pressure difference: 26 1. Test,Pressure Difference: 6.24 lbf/sq. ft. 27

28 D. Structural Performance: Provide metal wall panel assemblies capable of withstanding the 29

effects the following loads and stresses within limits and under conditions indicated, based 30 on testing according to ASTM E 1592: 31 1. Wind Loads: Design and size components of metal,faced composite wall panel 32

assemblies to withstand live loads caused by positive and negative wind pressure 33 normal to plane of wall as calculated in accordance with SEI/ASCE 7 using the 34 following criteria to establish design wind pressure: 35 a. Wind speed: 90 mph. 36 b. Exposure: C. 37 c. Importance Factor: I = 1.15. 38

2. Deflection Limits: Metal wall panel assemblies shall withstand wind loads with 39 horizontal deflections no greater than 1/180 of the span. 40

41 E. Thermal Movements: Allow for thermal movements from ambient and surface 42

temperature changes by preventing buckling, opening of joints, overstressing of 43 components, failure of joint sealants, failure of connections, and other detrimental effects. 44 Base calculations on surface temperatures of materials due to both solar heat gain and 45 nighttime,sky heat loss. 46 1. Temperature Change (Range): 120 deg F, ambient; 180 deg F, material surfaces. 47


1 1.5 SUBMITTALS 2 3

A. Product Data: For each type of product indicated. Include construction details, material 4 descriptions, dimensions of individual components and profiles, and finishes for each type 5 of wall panel and accessory. 6

7 B. Shop Drawings: Show fabrication and installation layouts of metal wall panels; details of 8

edge conditions, joints, panel profiles, corners, anchorages, attachment system, trim, 9 flashings, closures, and accessories; and special details. Distinguish between factory,, shop, 10 and field,assembled work. 11 1. Accessories: Include details of the following items, at a scale of not less than 3 12

inches per 12 inches: 13 a. Flashing and trim. 14 b. Anchorage systems. 15

16 C. Samples: For each type of exposed finish required, prepared on Samples of size indicated 17

below. 18 1. Metal Wall Panels: 12 inches long by actual panel width. Include fasteners, closures, 19

and other metal wall panel accessories. 20 2. Trim and Closures: 12 inches long. Include fasteners and other exposed accessories. 21 3. Accessories: 12,inch, long Samples for each type of accessory. 22

23 D. Product Test Reports: Based on evaluation of comprehensive tests performed by a 24

qualified testing agency, for each product. 25 26

E. Maintenance Data: For metal wall panels to include in maintenance manuals. 27 28

F. Warranties: Sample of special warranties. 29 30 1.6 QUALITY ASSURANCE 31

32 A. Installer Qualifications: An employer of workers trained and approved by manufacturer. 33

34 B. Source Limitations: Obtain each type of metal wall panel from single source from single 35

manufacturer. 36 37

C. Mockups: Build mockups to verify selections made under sample submittals and to 38 demonstrate aesthetic effects and set quality standards for fabrication and installation. 39 1. Build mockup of typical wall and corner panels, including soffit, as shown on 40

Drawings; approximately one bay wide by one story high by full thickness, supports, 41 attachments, and accessories. 42

2. Conduct water spray test of mockup of metal wall panel assembly, testing for water 43 penetration according to AAMA 501.2. 44

3. Approval of mockups does not constitute approval of deviations from the Contract 45 Documents contained in mockups unless Architect specifically approves such 46 deviations in writing. 47


4. Approved mockups may become part of the completed Work if undisturbed at time 1 of Substantial Completion. 2

3 1.7 DELIVERY, STORAGE, AND HANDLING 4

5 A. Deliver components, sheets, metal wall panels, and other manufactured items so as not to 6

be damaged or deformed. Package metal wall panels for protection during transportation 7 and handling. 8

9 B. Unload, store, and erect metal wall panels in a manner to prevent bending, warping, 10

twisting, and surface damage. 11 12 C. Stack metal wall panels horizontally on platforms or pallets, covered with suitable 13

weathertight and ventilated covering. Store metal wall panels to ensure dryness, with 14 positive slope for drainage of water. Do not store metal wall panels in contact with other 15 materials that might cause staining, denting, or other surface damage. 16

17 D. Retain strippable protective covering on metal wall panel for period of metal wall panel 18

installation. 19 20 1.8 PROJECT CONDITIONS 21

22 A. Weather Limitations: Proceed with installation only when existing and forecasted weather 23

conditions permit assembly of metal wall panels to be performed according to 24 manufacturers' written instructions and warranty requirements. 25

26 B. Field Measurements: Verify locations of structural members and wall opening dimensions 27

by field measurements before metal wall panel fabrication, and indicate measurements on 28 Shop Drawings. 29

30 1.9 COORDINATION 31

32 A. Coordinate metal wall panel assemblies with rain drainage work, flashing, trim, and 33

construction of soffits, and other adjoining work to provide a secure, and noncorrosive 34 installation. 35

36 1.10 WARRANTY 37 38

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or 39 replace components of metal wall panel assemblies that fail in materials or workmanship 40 within specified warranty period. 41 1. Failures include, but are not limited to, the following: 42

a. Structural failures including rupturing, cracking, or puncturing. 43 b. Deterioration of metals and other materials beyond normal weathering. 44

2. Warranty Period: Five years from date of Substantial Completion. 45 46


B. Special Warranty on Panel Finishes: Manufacturer's standard form in which manufacturer 1 agrees to repair finish or replace metal wall panels that show evidence of deterioration of 2 factory,applied finishes within specified warranty period. 3 1. Exposed Panel Finish: Deterioration includes, but is not limited to, the following: 4

a. Color fading more than 5 Hunter units when tested according to 5 ASTM D 2244. 6

b. Chalking in excess of a No. 8 rating when tested according to ASTM D 4214. 7 c. Cracking, checking, peeling, or failure of paint to adhere to bare metal. 8

2. Finish Warranty Period: 20 years from date of Substantial Completion. 9 10 11 PART 2 , PRODUCTS 12 13 2.1 PANEL MATERIALS 14 15

A. Metallic,Coated Steel Sheet: Restricted flatness steel sheet metallic coated by the hot,dip 16 process and prepainted by the coil,coating process to comply with ASTM A 755/A 755M. 17 1. Aluminum,Zinc Alloy,Coated Steel Sheet: ASTM A 792/A 792M, Class AZ50 18

coating designation, Grade 40; structural quality. 19 2. Surface: Smooth, flat finish. 20

21 B. Panel Sealants: 22

1. Sealant Tape: Pressure,sensitive, 100 percent solids, gray polyisobutylene compound 23 sealant tape with release,paper backing. Provide permanently elastic, nonsag, 24 nontoxic, nonstaining tape 1/2 inch wide and 1/8 inch thick. 25

2. Joint Sealant: ASTM C 920; elastomeric silicone sealant; of type, grade, class, and 26 use classifications required to seal joints in metal wall panels and remain 27 weathertight; and as recommended in writing by metal wall panel manufacturer. 28

3. Butyl,Rubber,Based, Solvent,Release Sealant: ASTM C 1311. 29 30 2.2 MISCELLANEOUS METAL FRAMING 31 32

A. Miscellaneous Metal Framing, General: ASTM C 645, cold,formed metallic,coated steel 33 sheet, ASTM A 653/A 653M, G60 hot,dip galvanized or coating with equivalent corrosion 34 resistance unless otherwise indicated. 35

36 B. Subgirts: Manufacturer's standard C, or Z,shaped sections, 0.064,inch nominal thickness. 37

38 C. Zee Clips: 0.079,inch nominal thickness. 39 40 D. Base or Sill Angles: 0.079,inch nominal thickness. 41 42 E. Hat,Shaped, Rigid Furring Channels: 43

1. Nominal Thickness: As required to meet performance requirements. 44 2. Depth: As indicated on Drawings. 45

46 F. Cold,Rolled Furring Channels: Minimum 1/2,inch, (13,mm,) wide flange. 47

1. Nominal Thickness: As required to meet performance requirements. 48


2. Depth: As indicated on Drawings. 1 2

G. Z,Shaped Furring: With slotted or nonslotted web, face flange of 1,1/4 inches, wall 3 attachment flange of 7/8 inch, and depth required to fit insulation thickness indicated. 4 1. Nominal Thickness: As required to meet performance requirements. 5

6 H. Fasteners for Miscellaneous Metal Framing: Of type, material, size, corrosion resistance, 7

holding power, and other properties required to fasten miscellaneous metal framing 8 members to substrates. 9 10

2.3 MISCELLANEOUS MATERIALS 11 12 A. Panel Fasteners: Self,tapping screws, bolts, nuts, self,locking rivets and bolts, end,welded 13

studs, and other suitable fasteners designed to withstand design loads. Provide exposed 14 fasteners with heads matching color of metal wall panels by means of plastic caps or 15 factory,applied coating. Provide EPDM, PVC, or neoprene sealing washers. 16 17

B. General: Provide factory,formed metal wall and soffitpanels designed to be installed by 18 lapping and interconnecting side edges of adjacent panels and mechanically attaching 19 through panel to supports using concealed fasteners and factory,applied sealant in side 20 laps. Include accessories required for weathertight installation. 21

22 2.4 METAL SOFFIT PANELS 23 24

A. General: Provide factory,formed metal soffit panels designed to be installed by lapping 25 and interconnecting side edges of adjacent panels and mechanically attaching through panel 26 to supports using concealed fasteners and factory,applied sealant in side laps. Include 27 accessories required for weathertight installation. 28 29

B. Flush,Profile Metal Soffit Panels: Solid panels formed with vertical panel edges and 30 intermediate stiffening ribs symmetrically spaced between panel edges; with flush joint 31 between panels. 32 1. Basis,of,Design Product: Subject to compliance with requirements, provide 33

CENTRIA Architectural Systems; Concept Series, IW,15A, or comparable product 34 by one of the following: 35 a. AEP Span 36 b. Berridge Manufacturing Company. 37 c. MBCI; Div. of NCI Building Systems. 38 d. Morin; A Kingspan Group Company. 39 e. VICWEST; Div. of Jenisys Engineered Products. 40

2. Material: Aluminum,zinc alloy,coated steel sheet, in thickness as required to meet 41 performance criteria, but not less than 0.034,inch nominal thickness. 42

3. Exposed Anodized Finish: 43 a. Champagne Annodized Finish: AAMA 611, AA,M12C22A31, Class II, 0.010 44

mm or thicker. 45 4. Panel Coverage: 12 inches. 46 5. Panel Height: 1.0 – 1.5 inch. 47 6. Sealant: Factory applied within interlocking joint. 48


1 2.5 ACCESSORIES 2 3

A. Wall Panel Accessories: Provide components required for a complete metal wall panel 4 assembly including trim, copings, fasciae, mullions, sills, corner units, clips, flashings, 5 sealants, gaskets, fillers, closure strips, and similar items. Match material and finish of 6 metal wall panels, unless otherwise indicated. 7 1. Closures: Provide closures at eaves and rakes, fabricated of same metal as metal wall 8

panels. 9 2. Backing Plates: Provide metal backing plates at panel end splices, fabricated from 10

material recommended by manufacturer. 11 3. Closure Strips: Closed,cell, expanded, cellular, rubber or crosslinked, polyolefin,12

foam or closed,cell laminated polyethylene; minimum 1,inch, thick, flexible closure 13 strips; cut or premolded to match metal wall panel profile. Provide closure strips 14 where indicated or necessary to ensure weathertight construction. 15

16 B. Flashing and Trim: Formed from same material as panels with prepainted with coil 17

coating. Provide flashing and trim as required to provide finished appearance. Locations 18 include, but are not limited to, bases, drips, sills, jambs, corners, endwalls, framed openings, 19 rakes, fasciae, parapet caps, soffits, reveals, and fillers. Finish flashing and trim with same 20 finish system as adjacent metal wall panels. 21

22 2.6 FABRICATION 23 24

A. General: Fabricate and finish metal wall panels and accessories at the factory to greatest 25 extent possible, by manufacturer's standard procedures and processes, as necessary to fulfill 26 indicated performance requirements demonstrated by laboratory testing. Comply with 27 indicated profiles and with dimensional and structural requirements. 28

29 B. Fabricate metal wall panels in a manner that eliminates condensation on interior side of 30

panel and with joints between panels designed to form weathertight seals. 31 32 C. Provide panel profile, including major ribs and intermediate stiffening ribs, if any, for full 33

length of panel. 34 35

D. Fabricate metal wall panel joints with factory,installed captive gaskets or separator strips 36 that provide a tight seal and prevent metal,to,metal contact, and that will minimize noise 37 from movements within panel assembly. 38

39 E. Sheet Metal Accessories: Fabricate flashing and trim to comply with recommendations in 40

SMACNA's "Architectural Sheet Metal Manual" that apply to the design, dimensions, 41 metal, and other characteristics of item indicated. 42 1. Form exposed sheet metal accessories that are without excessive oil canning, 43

buckling, and tool marks and that are true to line and levels indicated, with exposed 44 edges folded back to form hems. 45

2. Seams for Aluminum: Fabricate nonmoving seams with flat,lock seams. Form 46 seams and seal with epoxy seam sealer. Rivet joints for additional strength. 47


3. Seams for Other Than Aluminum: Fabricate nonmoving seams in accessories with 1 flat,lock seams. Tin edges to be seamed, form seams, and solder. 2

4. Sealed Joints: Form nonexpansion but movable joints in metal to accommodate 3 elastomeric sealant to comply with SMACNA standards. 4

5. Conceal fasteners and expansion provisions where possible. Exposed fasteners are 5 not allowed on faces of accessories exposed to view. 6

6. Fabricate cleats and attachment devices from same material as accessory being 7 anchored or from compatible, noncorrosive metal recommended by metal wall panel 8 manufacturer. 9 a. Size: As recommended by SMACNA's "Architectural Sheet Metal Manual" or 10

metal wall panel manufacturer for application but not less than thickness of 11 metal being secured. 12

13 2.7 GENERAL FINISH REQUIREMENTS 14

15 A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for 16

recommendations for applying and designating finishes. 17 18 B. Protect mechanical and painted finishes on exposed surfaces from damage by applying a 19

strippable, temporary protective covering before shipping. 20 21 C. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are 22

acceptable if they are within one,half of the range of approved Samples. Noticeable 23 variations in the same piece are not acceptable. Variations in appearance of other 24 components are acceptable if they are within the range of approved Samples and are 25 assembled or installed to minimize contrast. 26

27 28 PART 3 , EXECUTION 29 30 3.1 EXAMINATION 31

32 A. Examine substrates, areas, and conditions, with Installer present, for compliance with 33

requirements for installation tolerances, metal wall panel supports, and other conditions 34 affecting performance of work. 35 1. Examine open wall framing to verify that girts, angles, channels, studs, and other 36

structural panel support members and anchorage have been installed within 37 alignment tolerances required by metal wall panel manufacturer. 38

2. Examine wall sheathing to verify that sheathing joints are supported by framing or 39 blocking and that installation is within flatness tolerances required by metal wall 40 panel manufacturer. 41

3. Verify that weather barrier has been installed over sheathing or backing substrate to 42 prevent air infiltration or water penetration. 43

4. For the record, prepare written report, endorsed by Installer, listing conditions 44 detrimental to performance of work. 45

46


B. Examine roughing,in for components and systems penetrating metal wall panels to verify 1 actual locations of penetrations relative to seam locations of metal wall panels before metal 2 wall panel installation. 3

4 C. Proceed with installation only after unsatisfactory conditions have been corrected. 5

6 3.2 PREPARATION 7

8 A. Miscellaneous Framing: Install subgirts, base angles, sills, furring, and other miscellaneous 9

wall panel support members and anchorages according to ASTM C 754 and metal wall 10 panel manufacturer's written recommendations. 11

12 3.3 METAL SOFFIT PANEL INSTALLATION 13

14 A. General: Install metal soffit panels according to manufacturer's written instructions in 15

orientation, sizes, and locations indicated on Drawings. Install panels perpendicular to 16 girts and subgirts unless otherwise indicated. Anchor metal wall panels and other 17 components of the Work securely in place, with provisions for thermal and structural 18 movement. 19 1. Shim or otherwise plumb substrates receiving metal wall panels. 20 2. Flash and seal metal wall panels at perimeter of all openings. Fasten with self,21

tapping screws. Do not begin installation until weather barrier and flashings that will 22 be concealed by metal wall panels are installed. 23

3. Install screw fasteners in predrilled holes. 24 4. Locate and space fastenings in uniform vertical and horizontal alignment. 25 5. Install flashing and trim as metal wall panel work proceeds. 26 6. Locate panel splices over, but not attached to, structural supports. Stagger panel 27

splices and end laps to avoid a four,panel lap splice condition. 28 7. Apply elastomeric sealant continuously between metal base channel (sill angle) as 29

necessary for waterproofing. 30 8. Align bottom of metal wall panels and fasten with blind rivets, bolts, or self,tapping 31

screws. Fasten flashings and trim around openings and similar elements with self,32 tapping screws. 33

9. Provide escutcheons for pipe and conduit penetrating exterior walls. 34 35 B. Fasteners: 36

1. Steel Wall Panels: Use stainless,steel fasteners for surfaces exposed to the exterior; 37 use galvanized steel fasteners for surfaces exposed to the interior. 38

39 C. Metal Protection: Where dissimilar metals will contact each other or corrosive substrates, 40

protect against galvanic action as recommended by metal wall panel manufacturer. 41 42 D. Joint Sealers: Install gaskets, joint fillers, and sealants where indicated and where required 43

for weathertight performance of metal wall panel assemblies. Provide types of gaskets, 44 fillers, and sealants indicated or, if not indicated, types recommended by metal wall panel 45 manufacturer. 46 1. Seal metal wall panel end laps with double beads of tape or sealant, full width of 47

panel. Seal side joints where recommended by metal wall panel manufacturer. 48


2. Prepare joints and apply sealants to comply with requirements in Division 07 Section 1 "Joint Sealants." 2

3 E. Zee Clips: Provide Zee clips of size indicated or, if not indicated, as required to act as 4

standoff from subgirts for thickness of insulation indicated. Attach to subgirts with 5 fasteners. 6 7

3.4 METAL SOFFIT PANEL INSTALLATION 8 9

A. In addition to complying with requirements of "Metal Wall Panel Installation, General" 10 Article, install metal soffit panels to comply with the requirements of this article. 11 12

B. Metal Soffit Panels: Provide metal soffit panels full width of soffits. Install panels 13 perpendicular to support framing. 14 1. Flash and seal panels with weather closures where metal soffit panels meet walls and 15

at perimeter of all openings. 16 17

18


3.5 ACCESSORY INSTALLATION 1 2

A. General: Install accessories with positive anchorage to building and weathertight 3 mounting, and provide for thermal expansion. Coordinate installation with flashings and 4 other components. 5 1. Install components required for a complete metal wall panel assembly including trim, 6

copings, corners, seam covers, flashings, sealants, gaskets, fillers, closure strips, and 7 similar items. 8

9 B. Flashing and Trim: Comply with performance requirements, manufacturer's written 10

installation instructions, and SMACNA's "Architectural Sheet Metal Manual." Provide 11 concealed fasteners where possible, and set units true to line and level as indicated. Install 12 work with laps, joints, and seams that will be permanently watertight and weather resistant. 13 1. Install exposed flashing and trim that is without excessive oil canning, buckling, and 14

tool marks and that is true to line and levels indicated, with exposed edges folded 15 back to form hems. Install sheet metal flashing and trim to fit substrates and to 16 result in waterproof and weather,resistant performance. 17

2. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim. 18 Space movement joints at a maximum of 10 feet with no joints allowed within 24 19 inches of corner or intersection. Where lapped expansion provisions cannot be used 20 or would not be sufficiently weather resistant and waterproof, form expansion joints 21 of intermeshing hooked flanges, not less than 1 inch deep, filled with mastic sealant 22 (concealed within joints). 23

24 3.6 CLEANING AND PROTECTION 25

26 A. Remove temporary protective coverings and strippable films, if any, as metal wall panels 27

are installed, unless otherwise indicated in manufacturer's written installation instructions. 28 On completion of metal wall panel installation, clean finished surfaces as recommended by 29 metal wall panel manufacturer. Maintain in a clean condition during construction. 30

31 B. After metal wall panel installation, clear weep holes and drainage channels of obstructions, 32

dirt, and sealant. 33 34

C. Replace metal wall panels that have been damaged or have deteriorated beyond successful 35 repair by finish touchup or similar minor repair procedures. 36

37 38 END OF SECTION 39