tender b - architectural specfications

8/11/2019 Tender B - Architectural Specfications

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KAY NGEE TAN ARCHITECTS

02 MAY 2012

KNT 11001 - PROPOSED DEVELOPMENT OF

FUNTASY ISLAND RESORT AT PULAU MANIS,BATAM, PROVINSI KEPULAUAN RIAU, INDONESIA

PROPOSED DEVELOPMENT OF FUNTASY ISLAND RESORT AT PULAU

MANIS, BATAM, PROVINSI KEPULAUAN RIAU, INDONESIA (PACKAGE B)

CONSTRUCTION OF 40 UNITS OF OCEANFRONT VILLA AT PULAU 2, SERVICE

ANNEX WITH JETTY AT PULAU 4 & WAVE DEVELOPMENT (PHASE 1)

COMPRISING OF FERRY TERMINAL, WAVE PROMENADE 1, CLUB HOUSE 1,

PARTIAL 2F BROADWALK & 1F SERVICE CORRIDOR.

ARCHITECTURAL

SPECIFICATIONS


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ARCHITECTURALSPECIFICATIONS

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TABLEOFCONTENTS

A GENERALCONDITIONS 5 7

B DEMOLITIONS&ALTERATIONS 8 12

Existing

Services

Materials

Workmanship

SiteSafety

ScaffoldingandScreens

DustandNoiseControl

DamagetoAdjacentProperties

C MANSORY 13 18

MaterialsGenerally

Bricks

ConcreteBlocks

MeshReinforcement

DampProofCourse

Mortar

SettingOut

Bonding

Laying

Holdfasts

ReinforcedBrickworkandBlockwork

Wallsbuiltfairorinfacingbricks

Layingdampproofcourse

Watertightness

Test

Accuracy

Lintels

Jointing

Accessiblejointsnotexposedtoview

Appearance

Cleanliness

Reinforcing/FixingAccessories

Joints

D WATERPROOFING 19 27

Liquidappliedtanking/dampproofing

Liquidappliedroofcoatings

Fiberglasswaterproofing

WaterproofingMembrane

E FLOOR/SURFACEFINISH 28 74

Cementbasedleveling/wearingscreeds


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InSituFinishings

TileFinishing

TimberFlooring

ExternalRaisedTimberDeckSystem

Carpeting

Access/RaisedFloor

Sundries

F WALL/CEILING 75 88

Cementboarddrywallsystem

Plasterboarddrywalllining

Plasterboardpanelpartitions

Precastlightweighthollowconcretepanel

Suspendedceilingandsupportworks

G METALWORKS 89 96

Steel

StainlessSteel

Aluminium

Galvanizing

Sherardizing

ChromiumPlating

Anodizing

Flurocarboncoating

Powdercoating

Fasterners

Workmanship

Welding

&

brazing

Fixing

Components

Adjustablesteellouverwindows

Aluminiumwindow,door,sunshadefins&panels

Demountablepartitions

H PAINTINGWORKS/CLEARFINISH 97 102

CoatingSystems

General

Preparation

Application


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I GLAZING 103 106

Glass

Glazingcomponents

Accessories

Glazinggenerally

Compound

glazing

Beadglazing

Gasketglazing

MirrorFixing

CleaningandProtection

J DOORS/WINDOWS/STAIRS 107 118

WindowsGenerally

WindowProducts

DoorsGenerally

Door

Products

Stairs

K BUILDINGFABRICSUNDRIES 119 128

FireStoppingSystems

Sundryinsulation/proofingwork

Unframedisolatedtrims/skirtings/sundryitems

Door/WindowIronmongery

L FURNITURE/EQUIPMENT 129 136

Generalfixtures/furnishings/equipment

Sanitaryappliancesandfittings

M BUILDINGFABRICREFERENCESPECIFICATION 137 144

Purposemadejoinery

Preservative/fireretardanttreatment

Sealants


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N EXTERNALWORKS 145 172

CuttingDownTrees

Treeprotection

Bulkfiling

Premixroadsurfacing

Precast

concrete

units

Precastconcreteslabpaving

Precastconcretedrains

Turfing&plantermix

IrrigationSystem

AntitermiteTreatment

Vapour/MoistureBarrier

O ANNEX 173

Chapter4:SanitaryProvisions


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A

GENERALCONDITIONS


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1. These Architectural Specifications set out the basic standard or quality of materials andworkmanship required by the Works regardless of the trade headings under which they havebeen described and shall be read in conjunction with the other Technical specificationsprepared separately by respective Consultants, the Contract Drawings, the Conditions ofContract and all other documents in respect of the Contract.

2. The Contract Drawings may contain particular details / information / additional clauses whichare applicable to the Contract. If any parts of these Specifications contradict the ContractDrawings, the latter shall take precedence. In the event of discrepancies found between theContract Drawings, the Architectural Contract Drawings shall take precedence over drawingsfrom other disciplines. In this respect, the Contractor shall carry out construction works followingthe Architectural Contract Drawings and all cost incurred thereof including adopting the designfrom other Contract Drawings to the Architectural Contract Drawings and additional labour,materials, plant and equipment shall be deemed to have been included in the Contract Sum.

3. Where trade names or catalogue numbers are mentioned in the Contract Drawings, theTechnical Specifications, the Schedule of Works or Works Sections and all other documents in

the Contract, the reference is intended only as a guide to the type of article quoted or materialrequired, subject to the approval of the Engineer, the Contractor may substitute any article ormaterial similar and equal to those described by reference to trade names or cataloguenumbers. All proprietary materials or processes are to be used or carried out strictly inaccordance with the manufacturers instructions and recommendations. In the event ofdiscrepancies found between the Specifications and/or Contract Drawings with the appropriateor relevant Code of Practice or Singapore/British Standards, the more stringent requirementsshown on the above documents shall deem to have been included in the Contract Sum andform the basis of the Contract.

4. The Contractor shall ensure that these requirements are strictly adhered to when carrying outthe works, unless otherwise instructed, specified, etc. If the content of any item in theSpecifications, Contract Drawings appear to contravene the appropriate or relevant Code ofPractice or Singapore/British Standards, or is repugnant to the Contractors specializedknowledge of good practice, it will be the Contractors express responsibility to bring this matterto the attention of the Architect.

5. All proprietary materials or processes specified in this Specification or the Bills of Quantities areto be used or carried out strictly in accordance with the manufacturer's instructions andrecommendations. Inform the Architect if such instructions and recommendations conflict withany other specified requirements. Prior to incorporation into the Works, obtain confirmation fromthe manufacturers and carry out all necessary tests to ascertain the adequacy, suitability andcompatibility of such proprietary materials or processes.

6. The Contractor is allowed to propose an alternative product or manufacturer of equivalentspecifications as specified in this documents and the Contract Drawings to all specified tradeswith manufacturers, subject to the approval of the Architect.

7. All drawings and works from the Contractors consultants are to be done in accordance with thesubmitted and approved authorities documents as informed by the Architect, All drawings aresubjected to changes due to requirements by Authorities, as informed by the Architect.


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8. STANDARDS AND CODES OF PRACTICE

The standards and codes of practice referenced below and elsewhere in this Specification shallestablish the minimum but not to be construed as a limit on the standard of quality andworkmanship for the Works. They shall also serve as a basis for approval of such minimumstandards applicable thereto:

(1) Singapore Standards

(2) Singapore Standard Codes of Practice

(3) British Standards

(4) British Standard Codes of Practice

In case of conflict between any of the Standards and Codes of Practice and the drawings, thisSpecification or any of the other Contract Documents in relation to the standard of quality andworkmanship, the Standard and/or Code of Practice having the more stringent requirementshall govern unless otherwise notified by the Architect.

9. The Architect reserves the right to select and/or accept the level of standard and workmanshipwhich in his opinion will provide finished work that is to his satisfaction.


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B

DEMOLITIONS&ALTERATIONS


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1 EXISTING SERVICES

The Contractor shall comply with all requirements of the various statutory Authorities andGovernment Departments in respect of the existing services at and in the vicinity of the Site.The Contractor shall also inform and liaise with the Authority/Department concerned shouldhe encounter any services at the Site, and arrange with and offer them all necessaryassistance in ensuring the timely diversion, disconnection, termination, or capping off of all

utility services.

The Contractor shall also engage licensed cable detection workers to ascertain and confirmthat there are no live services cables before carrying out any excavation/demolition works.

2 MATERIALS

Unless otherwise specified in the Bills of Quantities, all materials arising out of thedemolitions and alterations work shall become the property of the Contractor who shallallow credit for the full value to him of all materials salvaged.

Where provision is made in the Bills of Quantities for the value of credits to be shownseparately, the Employer shall be entitled to purchase salvaged materials from theContractor upon payment to the Contractor of the credit value (if any) shown in the Bills.

Remove from the Site materials which are not required by the Employer. Unwantedmaterials shall not be permitted to accumulate or become a health or fire risk.

3 WORKMANSHIP

(1) Method and Procedure for Demolitions

The building shall be demolished progressively from the roofs down to thefoundations on a storey-by-storey and bay-by-bay basis, and/or on whatever otherbasis deemed expedient and safe by the Contractor and to the approval of the

Architect.

The Contractor shall employ methods that cause no shock or vibration likely todamage surrounding properties, plant or equipment or buried services. The use ofexplosives will not be permitted.

The Contractor shall be responsible for the full protection and stability of thoseparts of the buildings which are to remain as shown on the drawings.

The Contractor's method of demolition must comply strictly with SS CP 11.

The demolition of one part of the structure may result in other parts becoming

unsafe or unstable. The Contractor is required to study and predetermine wheretemporary supports, etc will be required. Provisions shall be made for adequateshoring, strutting and bracing designed by the Contractor's Professional Engineer.

The Contractor shall submit with his tender for consideration of the Architect, adetailed statement with regard to the method, procedure, plant, tools andequipment which he intends to follow and/or use.

(2) Method and Procedure for Alterations Work


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The Contractor shall sequence his works to the existing building in such a mannerso that all work to the roofs and drainage installation can be commenced andcompleted as soon as possible and the building made weathertight in advance ofother internal restoration/fitting-out works. Work which exposes the building toweather shall be undertaken during favourable weather conditions.

Provide tarpaulins, weatherproof coverings and the like to the satisfaction of the

Architect for the full protection of the internal parts of the existing building so longas the building is not weathertight.

Alterations shall be carried out with the minimum amount of disturbance to thoseparts of the building which are to remain. Provide all temporary shoring, needling,strutting, scaffolding, dustproof screens, tarpaulins, dust sheets and the like andother temporary works incidental to alterations. Execute the alterations work inphases as may be directed by the Architect.

New work associated with the alterations shall be as specified in the appropriatetrade sections. The Contractor shall be responsible for all making good in its fullestsense to match all aspects of the existing works and through, around, into, overand up to new items, openings and the like and the proper jointing to existing, all tothe approval of the Architect.

4 SITE SAFETY

The Contractor shall comply with the Workplace Safety and Health Act 2006 (hereinafterreferred to as 'the Act') and the provisions of the Factories (Building Operations and Worksof Engineering Construction) Regulations (hereinafter referred to as 'the Regulations') andany amendment or re-enactment thereto particularly with regard to Part XI (Demolition) ofthe Regulations. Prior to commencement of the Works, the Contractor shall obtain aCertificate of Registration under the Workplace Safety and Health (Registration ofFactories) Regulations.

It shall be the duty of the Contractor to comply with all requirements of the Act and

Regulations, as will affect him or any person or persons employed by him, and as related toany work, act or operation performed or about to be performed by him.

The Contractor shall ensure a safe working environment on the Site at all times. All safetyprovisions shall be properly maintained. The Contractor shall ensure that his workmen takeall necessary precautions when safety measures are installed.

The Contractor shall submit a safety drawing, certified by his Professional Engineer to theMinistry of Manpower (MOM) not later than one week after commencement of the Works.The approval of the MOM for such safety drawing shall not relieve the Contractor and hisProfessional Engineer of the need to ensure the adequacy and sufficiency of the safetyprovisions.

The Contractor shall display warning signs of 900 x 600mm (minimum size) at strategicpositions along the perimeter of the Site to deter trespassing. Signs shall have the words'Danger- Keep Out' in the four official languages painted red on a white background withgloss finishing paint. Warning lights shall also be provided at similar positions and activatedat night.

Works carried out at or near the main roads shall also comply with the Land TransportAuthority's Recommendations on Temporary Road Signs.


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The Contractor shall appoint a qualified and competent person to take charge of all matterson site safety and to conduct regular safety meetings.

The Contractor shall employ only experienced and trained operators for his plant,equipment and vehicles. The Contractor shall submit to the Architect and the relevant

Authorities, a list of the plant, equipment and vehicles to be used at the Site, together with

the names, identity card or passport numbers and years of experience of the operators notlater than one week after the commencement of the Works. The Contractor shall inform theMOM within one week of any changes made. The list shall be displayed at the site office.

The Contractor is deemed to have allowed for costs and expenses of all safety provisionsincluding that which may arise from amendments to the Regulations and changes in therequirements of MOM or other relevant Authorities.

Should the MOM order a total or partial stoppage of work due to safety violations, theContractor shall not be entitled to any claims for compensation or extension of time forcompletion.

5 SCAFFOLDING AND SCREENS

Scaffolding shall be of a type approved by the MOM and shall comprise an independenttied metal scaffold complying with the requirements of the Factories (Scaffolds) Regulations2004 and Singapore Standard Code of Practice for Scaffolding, CP 14. The scaffold shallbe erected to roof level along the external perimeter of the building.

No loading of debris shall be placed on the scaffold, in excess of its design capacity.

Scaffolds shall be dismantled progressively as demolition progresses and shall not be leftprojecting unnecessarily above the residual height of the building or structure. Scaffoldsshall be erected and dismantled by approved fixers under supervision, in accordance withthe relevant regulations and bye-laws and to the satisfaction of the Chief Inspector

(Factories) of the MOM.

The Contractor shall submit detailed drawings of the scaffolding system, its layout and/orsupport cantilevers to the Chief Inspector (Factories), MOM for approval. The approval ofthe MOM shall not relieve the Contractor and his Professional Engineer from any liability fordefective design and the erection of the metal scaffolds.

Dustproof canvas sheeting shall be securely fastened together, onto the outer face of metalscaffolds to prevent drifting of dust and debris.

6 DUST AND NOISE CONTROL

The Contractor shall comply with the Environmental Pollution Control Act and is required totake all proper and reasonable precautions to control the emission and escape of dust andexcessive noise.

All work to be demolished and debris shall be well watered to prevent dust rising.

The Contractor's attention is drawn to the provisions of the Environmental Pollution Control(Control of Noise at Construction Sites) Regulations and Singapore Standard Code ofPractice for Noise Control on Construction and Demolition Sites, CP49 on noise control.The Contractor shall ensure that the amount of noise is within the stipulated levels byminimizing the number of plant and equipment working simultaneously or the number of


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noise emitting activities being carried out simultaneously and restricting the hours ofworking where excessive noise is emitted.

Should the amount of dust and the level of noise is such as to cause undue inconvenienceand nuisance, the Contractor shall be required to effect corrective measures at his ownexpense to the satisfaction of the Architect and the relevant Authorities. Any delays orslowdown due to stoppages arising from interim/permanent injunctions or from compliance

with any regulatory or mandatory requirement of the Authorities to abate the nuisance shallbe solely at the Contractor's cost.

7 DAMAGE TO ADJACENT PROPERTIES

The Contractor shall take proper precautions to ensure that no damage is caused toadjacent structures. In the event damage does occur, it must be made good to thesatisfaction of the Architect. Any damage caused to the roads, whether public or private,drains, kerbs, etc must be made good to the complete satisfaction of the Architect. TheContractor shall bear all time and cost consequences in connection therewith.


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C

MASONRY


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1 MATERIALS GENERALLY

Submit samples of each type of brick and block and obtain approval before placing orderswith suppliers. If requested by the Architect, submit samples of the bricks and blocks toPSB for testing and pay fees in connection therewith.

Stack bricks and blocks clear of the ground and protect from inclement weather, chipping or

damage.

2 BRICKS

Common bricks and facing bricks shall be of standard size 215 x 102.5 x 65mm of evenshape, hard, well burnt, machine made pressed bricks with true arrises complying with SS103 Second Grade having a minimum compressive strength of 20 MN/m2.

Bricks for use in external walls shall be free from hairline cracks.

3 CONCRETE BLOCKS

Blocks shall be hard, even in shape, square with true arrises, well matured and of a dense,well consolidated mixture.

Blocks for load bearing use shall be Class A with a minimum compressive strength of notless than 5.6 MN/m2 and comply with SS 76(M).

Blocks for non-load bearing use shall comply with SS 271 and have a minimumcompressive strength of not less than 3.2 N/mm2.

4 MESH REINFORCEMENT

Mesh shall be 22 gauge expanded mild steel strip, 25mm narrower than the width of the

wall and galvanised after cutting.

5 DAMP PROOF COURSE

The damp proof course shall be bitumen with a fibre base complying with BS 6398 Class B.

6 MORTAR

Cement to be in accordance with BS 8204-1, clause 5.1.3.

Sand shall be clean natural sand of light colour free from organic matter and shall comply

with SS 31 and be washed and/or screened if required by the Architect.

Plasticisers shall be of approved manufacture.

Water shall be from the main supply, kept free from impurities.

Mix mortar in the ratio of 1:6 by volume and incorporate plasticiser in the proportionrecommended by the manufacturer.

Thoroughly mix mortar by mechanical mixer or by hand on a clean level timber platform anduse within two hours of mixing.


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7 SETTING OUT

Provide proper setting out rods and set out all work showing openings, heights, sills andlintels. No part of the walling shall be carried up more than 1000mm higher at one timethan any other part and in such cases the jointing shall be made in long steps, not toothed,

so as to prevent cracks arising. Walls shall be levelled around at floors and wall heads andbuilt in level courses.

Walls as built shall be within a tolerance of + 15mm of setting out dimensions.

8 BONDING

Half brick thick walls and block walls shall be built in stretcher bond. Brick walls of onebrick or greater thickness shall be built in English bond. Piers and angles shall be properlybonded together and intersections of walls shall be cut, toothed and bonded together atalternate courses.

9 LAYING

Before commencing laying, ascertain from other trades that all pipes, conduits, drains,sleeves, bolts, hangers, door and window fixing lugs, timber pellets or any other materialsfor which provision is required has been catered for.

Bricks and blocks shall be wetted before being laid and tops of walls where left off shalllikewise be wetted before recommending laying.

Lay bricks and blocks on a full bed of mortar and fill solid all joints. Bed and vertical jointsshall be of a uniform 10mm thickness. Bricks shall be laid frog uppermost and filled withmortar.

Walls shall be built within a tolerance of + 15mm of plumb in any storey height. Perpends

and quoins shall be plumb and square.

Use templates for forming door and window openings where not built in and for forming liftshafts accurately at each floor level.

Bed frames and plates, etc which are built in with cement mortar 10mm thick.Cut and pin or build in ends of bars and the like and make good in cement mortar.

Cut or form all holes, mortices, chases and openings in walls for fittings, pipes, turn-in offinishings and the like and subsequently make good in cement mortar.

Joints in walls to be plastered or rendered shall be raked out to a depth of 10mm whilst themortar is green to form an adequate key for finishings.

10 HOLDFASTS

Unless otherwise specified, hardwood frames shall be secured with mild steel holdfasts25mm wide x 3mm thick x 225mm girth with one end bent and twice drilled and screwed toback of frame and other end fanged and built into joints of brickwork or blockwork.

11 REINFORCED BRICKWORK AND BLOCKWORK


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Brick walls of half brick (102.5mm) or on edge (65mm) thickness shall be reinforced withmesh reinforcement as previously described at every fourth course.

Block walls not exceeding 100mm thick shall be reinforced with mesh reinforcement aspreviously described at every course. The mesh reinforcement shall be lapped 150mm at

joints and carried through the full thickness of the end wall at corners and junctions.

12 WALLS BUILT FAIR OR IN FACING BRICKS

Execute sample panels 1000 x 1000mm for each type of facing work for the Architect'sapproval and clear away when directed.

Bricks or blocks for faced or fair work shall be specially selected for uniformity of size andclean, undamaged faces and arrises.

Point faced or fair walls with a neat recessed joint as the work proceeds.

13 LAYING DAMP PROOF COURSES

Lay damp proof courses in continuous strip with 150mm laps at joints and full laps at angleson an even bed of cement mortar and complete joint to normal thickness.

Keep leading edge of damp proof course flush with face of wall.

14 WATERTIGHTNESS TEST ON EXTERNAL BRICK WALLS

External walls shall be tested for watertightness by spraying with a continuous jet of waterfrom a water hose reel having a 4.5mm nozzle and a minimum running pressure of 4 barheld at a distance from the surface under test to be specified by the Architect. The durationof the test shall not be less than 30 minutes.

The walls shall be examined for dampness or water seepage during the test and within onehour after completion of the test.

15 ACCURACY

Courses: Level and true to line.Faces, angles and features: Plumb.Permissible deviations:Position in plan of any point in relation to the specified building reference line and/ or pointat the same level 10 mm.

- Straightness in any 5 m length 5 mm.

- Verticality up to 3 m height 10 mm.

- Verticality up to 7 m height 14 mm.

- Overall thickness of walls 10 mm.

- Level of bed joints up to 5 m (brick masonry) 11 mm.

- Level of bed joints up to 5 m (block masonry) 13 mm.


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16 LINTELS

Bearing: Ensure full length masonry units occur immediately under lintel ends.

Precast Concrete Lintels:

- Standard: To BS EN 845-2.

- Manufacturer: Contractor's proposal- Product reference: None- Sizes: Contractor's proposal- Additional requirements: Freeze/ thaw: Resistant- Placement: Bed on mortar used for adjacent

17 JOINTING

Profile: Consistent in appearance.

18 ACCESSIBLE JOINTS NOT EXPOSED TO VIEW

Jointing: Struck flush as work proceeds.

19 APPEARANCE

- Brick/ block selection: Do not use units with damaged faces or arrises.

- Cut masonry units: Where cut faces or edges are exposed cut with table masonry saw.

- Quality control: Lay masonry units to match relevant reference panels.

- Setting out: To produce satisfactory junctions and joints with built-in elements andcomponents.

- Coursing: Evenly spaced using gauge rods.

- Lifts: Complete in one operation.

- Methods of protecting facework: Submit proposals.

20 CLEANLINESS

- Facework: Keep clean.-Mortar on facework: Allow to dry before removing with stiff

21 REINFORCING/ FIXING ACCESSORIES

Angel Supports Generally:

- Manufacturer: Submit proposals .- Product reference: None .- Material: Austenitic stainless steel .- Size: proprietary system .- Fixings (complete with washers and shims): Manufacturer's instruction .


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Support Systems Generally:

- Manufacturer: Submit proposals .- Product reference: None .- Material: Austenitic stainless steel .- Components, arrangement and dimensions: As shown on drawings.

22 JOINTS

Unexposed Construction Joints:

- Formation: Close butt as work proceeds.

Pointing in Flashings:

- Joint preparation: Free of debris and lightly wetted.- Pointing mortar: As for adjacent walling.- Placement: Fill joint and finish flush.


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D

WATERPROOFING


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1 GENERAL

All materials including primers, resins, curing agents, and finish coats are to be Green Labelcertified or bear a similar internationally recognized certification. Also, the finish coat shallbe environment friendly, containing no solvent

2 LIQUID APPLIED TANKING/ DAMP PROOFING

TYPES OF TANKING/ DAMP PROOFING

Cold Applied Tanking:

- Substrate: As shown on drawings.- Primer: As coating manufacturer's recommendations.- Coating: Epoxy resin.

o Manufacturer: submit proposals.o Product reference: None.o Application: As coating manufacturer's recommendations.

- Reinforcement: As coating manufacturer's recommendations.- Blinding: As coating manufacturer's recommendations.- Green Label: SEC Endorsed or similar

Cold Applied Damp Proofing :

- Substrate: As shown on drawings.- Primer: As coating manufacturer's recommendations.- Coating: Epoxy resin.

o Manufacturer: submit proposals.o Product reference: None.o Application: As coating manufacturer's recommendations.

- Reinforcement: As coating manufacturer's recommendations.- Blinding: As coating manufacturer's recommendations.- Green Label: SEC Endorsed or similar

EXECUTION

Suitability of Substrate:

- Substrates generally:o Smooth, even textured, clean, dry and frost free.o Within tolerances for level and surface regularity.o Vertical and horizontal surfaces: Correctly prepared and free from

irregularities.- Curing period for concrete substrates (minimum): 7 days.- Moisture content and stability of substrate: Must not impair integrity of finished

tanking/- damp proofing.- Preliminary work: Complete including:

o Chases.o External angles.o Formation of upstands and kerbs.o Movement joints.o Penetrations/ Outlets.

Adhesion Testing:


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- Tensile bond strength: Test in accordance with BS EN ISO 4624.- Test results: Submit.

Primers:

- Application: Uniform, continuous coverage.

Coating Application:

- Adjacent surfaces exposed to view in finished work: Protect.- Coatings:

o Apply in dry atmospheric conditions when primer is tacky.o Uniform, continuous coverage. Do not allow to pool in hollows.o Firmly adhered to substrate and free from imperfections.o Prevent damage to finished coatings.

- Penetrations: Impervious.- Final covering: Apply as soon as possible after coating has hardened.

Cold Applied Coatings:

- Thinning: Not permitted unless recommended by manufacturer.- Successive coats:

Allow to dry before applying next. Apply at right angles to previous.

Modified Coatings:

- Air and surface temperatures: Do not apply if below minimum recommended bycoating manufacturer.

- Curing: Keep dry until fully cured.

Reinforcement:

- Laying: Laid into second coat with third coating applied locally over fabric .- Edge overlap (minimum): 75 mm- Finish: Smooth and free from imperfections.

Junctions with DPCs:

- DPCs: Clean, all edges fully exposed.- Application: Fully coat dpc and overlap adjacent surfaces by (minimum) 75 mm.

Blinding:

- Coatings: Blind whilst tacky .

- Surplus material: Remove when coatings are completely dry.

COMPLETION

Inspection:

- Interim and final inspections: Submit reports.

Electronic Integrity Test:


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- Testing authority: Submit proposals.- Timing of test: Give notice.- Condition of coating prior to testing:

o Complete to a stage where integrity can be tested.o Surface: Clean.

- Test results and waterproof integrity certificate: Submit on completion of testing.

Protection of Coatings:

- Coated surface: Clean and free from contaminants.- Board manufacturer: submit proposals.

o Product reference: None.o Thickness: As coating manufacturer's recommendations.

- Placement: Bond protection board to coating with double-sided tape.o Edges: 75 mm minimum overlap.o Perimeter treatment: to manufacturer's instruction.

- Contact with coating: Secure and continuous.

3 LIQUID APPLIED ROOF COATINGS

TYPES OF COATING

Cold Deck Roof Coating:

- Substrate: As shown on drawings.o Preparation: to manufacturer's instruction.

- Waterproof coating: Polyurethane.o System manufacturer: submit proposals.

- Primer reference: As coating manufacturer's recommendation.- Coating reference: As coating manufacturer's recommendation.

o Application: As coating manufacturer's recommendation.o Reinforcement: As coating manufacturer's recommendation.o Minimum dry film thickness: As coating manufacturer's recommendation.o Colour: As coating manufacturer's recommendation.

- Surface protection: As coating manufacturer's recommendation.- Accessories: As shown on drawings.- Green Label: SEC Endorsed or similar

PERFORMANCE

Roof Performance:

- General: Firmly adhered, free draining and weathertight.

Avoidance of Interstitial Condensation In Warm and Inverted Roofs:

- Interstitial condensation risk of roof construction: Assess as recommended in BS6229.

- Basic design data:o Outdoor notional psychrometric conditions, winter:

Temperature: -5C. Relative humidity: 90%. Vapour pressure: 0.36 kPa. Duration: 60 days.


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o Outdoor notional psychrometric conditions, summer:o Temperature: 18C.o Relative humidity: 65%.o Vapour pressure: 1.34 kPa.o Duration: 60 days.o Indoor notional psychrometric conditions:

Temperature: 20C.

Relative humidity: 40%. Vapour pressure: 1.17 kPa.

o Winter interstitial condensate (warm roof): Calculated amount (maximum): 0.35kg/m. Calculated annual net retention: Nil.

- Vapour control layer: If necessary, provide a suitable membrane so that damageand nuisance from interstitial condensation do not occur.

- Risk of interstitial condensation in roof construction: Assess in accordance with BS5250, Annex D.

- Vapour control layer: If necessary, provide a suitable membrane so that damageand nuisance from interstitial condensation do not occur.

Insulation:

- Requirement: Determine type and thickness of insulation and integral or separateoverlay to satisfy the following criteria:

o Thermal transmittance of roof (maximum): 0.25 W/mK.o Compressive strength of insulation (minimum) at 10% compression: 220

kPa.o Substrate surface: Suitably even, stable and robust to receive roof coatings.o Insulation compliance: To a relevant British Standard, or Agrment certified.

PRODUCTS

Timber Trims:

- Quality: Planed, free from wane, pitch pockets, decay and insect attack (exceptambrosia

- beetle damage).- Moisture content at time of covering (maximum): 22%.- Preservative treatment: As recommended for purpose by waterproof coating

manufacturer.

Vapour Control Layer:

- Type: Reinforced polyethylene sheet.- Manufacturer: Submit proposals.

o Product reference: None.

- Thickness: 500 micrometres.- Vapour resistance: 1000 MNs/g.

Extruded Polystyrene (XPS) Warm Deck Roof Insulation:

- Standard: To BS EN 13164.- Manufacturer: submit proposals.

o Product reference: None.- Grade: E2.- Thickness: 50mm.- Facing: Factory bonded foil upper face.


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Precast Concrete Paving Slabs:

- Standard: To BS EN 1339, hydraulically pressed.- Manufacturer: Submit proposals.

o Product reference: None.- Colour/ Finish: Natural with smooth surface.

- Recycled content: Submit proposals.- Size: 600 x 600 x 50 mm.- Support system: Not required.

EXECUTION GENERALLY

Adverse Weather:

- Do not apply coatings:o In wet conditions or at temperatures below 5C, unless otherwise permitted

by coating manufacturer.o In high winds (speeds > 7 m/s), unless adequate temporary windbreaks are

erectedo adjacent to working area.

- Unfinished areas of roof: Keep dry.

Suitability of Substrate:

- Substrates generally:o Secure, clean, dry, smooth, free from frost, contaminants, loose material,

voids, protrusions and organic growths.o Compatible with coating system.

- Preliminary work: Complete, including:o Formation of upstands, kerbs, box gutters, sumps, grooves, chases and

expansion joints.o Fixing of battens, fillets and anchoring plugs/ strips.

- Moisture content and stability: Must not impair integrity of roof.

NEW SUBSTRATES/ VAPOUR CONTROL LAYERS/ WARM DECK ROOF INSULATION

Fixing Timber Trims:

- Fasteners: Sherardized steel screws.- Fixing centres (maximum): 600 mm.

Laying Vapour Control Layer:

- Membrane: As shown on drawings.- Laps: Sealed using materials and method recommended by membrane

manufacturer.- Upstands, kerbs and other penetrations: Enclose edges of insulation. Lap with

coatings to form a complete seal.

Laying Warm Deck Roof Insulation:

- Setting out:o Long edges: Fully supported and run at right angles to direction of span.o Joints: Butted together.


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o Ends: Adequately supported.o Joints: Staggered.

- Bedding: Full bed of bonding compound.- Mechanical fixing: Determined by contractor.- Completion: Boards must be in good condition, well fitting and stable.

ROOF COATING SYSTEM

Adhesion Tests:

- Requirement: Carry out a trial coating to determine priming requirements and/ orsystem

- suitability.- Nature of test: 5 x 5 m application of coating system to concrete roof .- Test results: Submit and arrange for inspection.

Applying Primers/ Conditioners:

- Coverage per coat (minimum): 0.2 L/m.- Surface coverage: Brushed well in to ensure local or full area coverage according

to type.- Coats: Allow to dry before overcoating.

Laying Carrier Membrane:

- Bond: Full to provide a continuous surface for application of coatings.- Mechanical fixing: In accordance with manufacturer's recommendations.

Movement Joints in Substrate:

- Debonding tape: Apply over movement joints.- Reinforcement strip: Apply over debonding tape.

o Bedding: Preliminary coating application.o Joints: Lap in length.o Bond: Continuous over whole surface, with no air pockets.o Condition at completion: Smooth.

Preliminary Local Reinforcement:

- Reinforcement strip: Apply to junctions at upstands, penetrations and outlets, jointsand fixings in discontinuous unit substrates.

o Bedding: Preliminary coating application.o Joints: Lap in length.o Bond: Continuous over whole surface, with no air pockets.o Condition at completion: Smooth.

Application of Roof Coatings:

- Thickness: Monitor by taking wet/ dry film thickness readings.- Continuity: Maintain full thickness of coatings around angles, junctions and features.- Rainwater outlets: Form with watertight joints.- Drainage systems: Do not allow liquid coatings to enter piped rainwater or foul

systems.- Edge trims: Apply coatings over horizontal leg of trim and into recess.


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Skirtings and Upstands:

- Top edges of coatings: Where not protected by flashings, apply into chases cut to a- minimum depth of 10 mm.- Completion of chases: When coatings are fully cured, prepare chase and apply

sealant:o Sealant: To BS EN ISO 11600.

- Colour: As coating.

COMPLETION

Inspection:

- Coating surfaces: Check when cured for discontinuities.o Defective areas: Apply another coating.

Electronic Roof Integrity Test:

- Testing authority: Submit proposals .- Timing of test: Give notice .- Condition of roof prior to testing:

o Coating: Complete to a stage where integrity can be tested.o Surface: Clean.

- Test results: Submit.- Waterproof integrity certificate: On completion of testing, submit.

Flood Test:

- Condition of roof prior to testing:o Coating: Complete to a stage where integrity can be tested.o Surface: Clean.

- Outlets: Externally cover and seal. Protect against damage from water pressure

using- temporary kerbs. Do not use plugs to seal outlets.- Flood levels: Submit proposals. In no case higher than existing kerbs.- Flood duration: 24 hours .- Inspection: Regular to detect leaks.- Completion of test: Slowly drain roof. Do not overload or flood outlets.- Test results: Submit.

Completion:

- Roof areas: Clean.o Outlets: Clear.o Flashings: Dressed into place.

- Work necessary to provide a weathertight finish: Complete.- Storage of materials on finished surface: Not permitted.- Completed coatings: Protect against damage.

4 WATERPROOFING MEMBRANE

TYPES OF MEMBRANE


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Pre-Applied High Density Polyethylene (HDPE) Film

- Manufacturer:o Contractor to submit proposals to the Architect for approvalo Product Reference: Preorufe 160R by Grace Construction

- Description:o Composite HDPE film

- Preparation:o Substrate Preparation: to manufacturer's instruction.

- Coating reference: As manufacturer's recommendation.o Application: As manufacturer's recommendation.o Reinforcement: As manufacturer's recommendation.o Minimum dry film thickness: As manufacturer's recommendation.o Colour: As manufacturer's recommendation.

- Surface protection: As manufacturer's recommendation.- Accessories: As manufacturer's recommendation.- Green Label: SEC Endorsed or similar

INSTALLATION GENERALLY

Membrane rolls with tapes are to be supplied with a selvedge on one side to provide self-adhered laps for continuity between rolls. Disposable plastic release liners, if any, are to beremoved before placing reinforcement and concrete.

Membrane Installation:

- During Damp conditions, selvedge and tape adhesive to be warmed using hot airgun or similar to remove moisture and condensation.

- Refer to Manufacturers instruction on the laying and positioning of each membraneroll

Penetrations:

- Grouting of penetration and any additional steps to Manufacturers instruction.

Hydrostatic Head Test:

- Testing authority: Submit proposals .- Timing of test: Give notice .- Condition of ground prior to testing:

o Surface: Clean.- Test results: Submit.- Waterproof integrity certificate: On completion of testing, submit.

Completion:

- Ensure plastic release liner is removed from all areas before pouring of concrete.- Concrete to be poured within 42 days of the application of the membrane/or as

specified by the Manufacturer.- Concrete to be poured must be placed and compacted carefully to avoid damage to

the membrane


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E

FLOOR/SURFACEFINISH


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1 CEMENT BASED LEVELLING / WEARING SCREEDS

TYPES OF SCREED

Cement: Sand Levelling Screed to Floors:

- Substrate: In situ concrete slab.- Screed construction: Partially bonded, as clause 270.

o Reinforcement for crack control: Not required.- Thickness .

o Nominal: 70 mm.o Minimum: 50 mm.

- Mix:o Proportions (cement:sand): 1:3-4.5.

- In situ crushing resistance (ISCR) category: 1:3-4.5.o Mass of test weight: 4 kg.

- Flatness/ Surface regularity: Maximum permissible deviation: 5 mm or 2 mm under

a 1 m straightedge .- Finish: Smooth floated, as clause 530.o To receive: Varies, as shown on drawings.

- Other requirements: None.

Fine Concrete Levelling Screed to Ramps:

- Substrate: Precast concrete planks.- Screed construction: Partially bonded, as clause 270.

o Reinforcement for crack control: Not required.- Thickness:

o Nominal: 70 mm.o Minimum: 50 mm.

- Mix:o Proportions (cement: total aggregate): 1:4-5.o Sand to coarse aggregate: Between 75:25 and 60:40, adjusted to facilitate

trowelling.- In situ crushing resistance (ISCR) category: B (4 mm maximum indentation).

o Mass of test weight: 4 kg.- Flatness/ Surface regularity: Maximum permissible deviation: 5 mm and also 2 mm

under a- 1 m straightedge .- Finish: Trowelled, as clause 540.

o To receive: Polyurathane paint.

- Other requirements: Movement joints .

Concrete Wearing Screeds (Pebblewash) to Floors:

- Substrate: In situ concrete slab.- Screed construction: Fully bonded.- Thickness:

o Nominal: 50 mm.o Minimum: 30 mm.o Maximum: 40mm.

- Mix:o Proportions (cement:sand:pebble stone): 1:1:5 .


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- Flatness/ Surface regularity: Maximum permissible deviation: 5 mm and also 2 mmunder a 1 m straightedge.

- Abrasion resistance:o Standard: To BS 8204-2, Table 4.o Classification: AR3/ WS Moderate Duty.

- Finish: Trowelled, as clause 550.o Slip resistance value (minimum SRV): SRV 40.

- Other requirements: Movement joints .

GENERALLY/PREPARATION

Suitability of Substrates:

- General:o Suitable for specified levels and flatness/ regularity of finished surfaces.

Consider permissible minimum and maximum thicknesses of screeds.o Sound and free from significant cracks and gaps.

- Concrete strength: To BS 8204-1, Table 2.- Cleanliness: Remove plaster, debris and dirt.- Moisture content: To suit screed type. New concrete slabs to receive fully or

partially- bonded construction must be dried out by exposure to the air for minimum six

weeks.

Control Samples:

- General: Complete areas of finished work and obtain approval of appearancebefore

- proceeding.- Screed type: As clauses 115, 120, 180A.

o Location/ Size: To be selected / 1 m x 1 m.

Conduits Case Into Or Under Screeds:

- Reinforcement: Overlay with reinforcement selected from:o 500 mm wide strip of steel fabric to BS 4483, reference D49, oro Welded mesh manufactured in rolls from mild steel wire minimum 1.5 mm

diameter to BS 1052, mesh size 50 x 50 mm.- Placing reinforcement: Mid depth between top of conduit and the screed surface.

o Screed cover over conduit (minimum): 25 mm.

Pipe Ducts / Trunking:

- Preformed access ducts: Before laying screed, fix securely to substrates and level- accurately in relation to finished floor surface.

Partially Bonded Construction:

- Preparation: Generally in accordance with BS 8204-1.- Substrate surface: Brushed finish with no surface laitance.

o Texture of surface: Suitable to accept screed and achieve a bond overcomplete area.

Cement Slurry Bonding:

- Slurry type: Neat cement.


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- Application: Shortly before laying screed, thoroughly wash clean the surface andkeep well

- wetted for several hours. Remove free water then brush in cement slurry bondingcoat of

- creamy consistency.- Screeding: While slurry is still wet.

BATCHING/MIXING

Cements:

- Cement types: In accordance with BS 8204-1, clause 5.1.3.

Aggregates:

- Sand: To BS EN 13139.o Grading limits: In accordance with BS 8204-1, Table B.1.

- Coarse aggregates for fine concrete levelling screeds:o Standard: To BS EN 12620.o Designation: 4/10.

- Lightweight aggregates: To BS 8204-1, Annex A.

Mixing:

- Water content: Minimum necessary to achieve full compaction, low enough toprevent

- excessive water being brought to surface during compaction.- Mixing: Mix materials thoroughly to uniform consistency. Mixes other than no-fines

must be- mixed in a suitable forced action mechanical mixer. Do not use a free fall drum type

mixer.- Consistency: Use while sufficiently plastic for full compaction.

- Ready-mixed retarded screed mortar: Use within working time and sitetemperatures

- recommended by manufacturer. Do not retemper.

In-Situ Crushing Resistance (ISCR):

- Standards and category: To BS 8204-1, table 4.o Testing of bonded and unbonded screeds: To Annex D.o Testing of floating levelling screeds: To Annex E.

Adverse Weather:

- Screeds surface temperature: Maintain above 5C for a minimum of four days after

laying.- Hot weather: Prevent premature setting or drying out.

LAYING

Laying of Screed Surfaces:

- Permissible deviation: (allowing for thickness of coverings) 5 mm from datum.


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Screeding to Falls:

- Minimum screed cover: Maintain at the lowest point.- Falls: Gradual and consistent.

o Gradient (minimum): As shown on drawings .

Screeding to Ramps:

- Screed cover: Maintain consistent screed depth to graduated substrate.- Falls: Gradual and consistent.

Flatness / Surface Regularity of Floor Screeds:

- Standard: To BS 8204-1, Table 5.- Test: To BS 8204-1, Annex C.- Sudden irregularities: Not permitted.

Flatness / Surface Regularity of Roof Screeds:

- Sudden irregularities: Not permitted.- Deviation of surface: Measure from underside of a 2 m straightedge (between

points of- contact), placed anywhere on surface.

o Permissible deviation (maximum): 6 mm.

Compaction of Screeds:

- General: Compact thoroughly over entire area.- Screeds over 50 mm thick: Lay in two layers of approximately equal thickness.

Roughen- surface of compacted lower layer then immediately lay upper layer.

Joints in Levelling Screeds Generally:

- Laying screeds: Lay continuously using 'wet screeds' between strips or bays.Minimize

- defined joints.- Daywork joints: Form with vertical edge.

Crack Inducing Grooves in Levelling Screeds:

- Groove depth: At least half the depth of screed.- Cutting grooves: Straight, vertical and accurately positioned. Select from the

following:o Trowel cut as screed is laid.o Saw cut sufficiently early after laying to prevent random cracking.

FINISHING/CURING

Finishing Generally:

- Timing: Carry out all finishing operations at optimum times in relation to setting and- hardening of screed material.- Prohibited treatments to screed surfaces:

o Wetting to assist surface working.o Sprinkling cement.


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Wood Floated Finish:

- Finish: Slightly coarse, even texture with no ridges or steps.

Smooth Floated Finish:

- Finish: Even texture with no ridges or steps.

Trowelled Finish To Levelling Screeds:

- Floating: To an even texture with no ridges or steps.- Trowelling: To a uniform, smooth but not polished surface, free from trowel marks

and other blemishes, and suitable to receive specified flooring material.

Trowelled Finish to Wearing Screeds:

- Floating: To an even texture with no ridges or steps.- Trowelling: Successively trowel at intervals, applying sufficient pressure to closesurface and give a uniform smooth finish free from trowel marks and other blemishes.

Curing:

- General: Prevent premature drying. Immediately after laying, protect surface fromwind,

- draughts and strong sunlight. As soon as screed has set sufficiently, closely coverwith

- polyethylene sheeting.- Curing period (minimum): Keep polyethylene sheeting in position for: period

recommendedby screed manufacturer.- Drying after curing: Allow screeds to dry gradually. Do not subject screeds to

artificial- drying conditions that will cause cracking or other shrinkage related problems.

Roof Screeds:

- Protection: Cover screeds during wet weather. When weathertight coverings arelaid, screeds must be as dry as practicable.

2 IN-SITU FINISHINGS

PLASTERING

Plastering sand shall be clean, natural, uncrushed or partially crushed sand of a light colour,

free from organic matter, suitable for use in plastering and approved by the Architect. Theclay-plus-fine silt content shall not exceed 5% by weight and 15% by volume as specified inBS 1199.

The field test for determining the volume of silt shall be carried out in accordance with themethods as hereinafter described. All sand found to contain silt in excess of 15% byvolume shall not be used for plastering or in mortars but shall be removed from the Site atthe Contractor's expense.

Sand shall be sieved fine and of as light a colour as possible.


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GYPSUM PLASTER SKIM COAT ON PLASTERBOARD

- Plasterboard: 12.5 mm .o Preparation: Bonding agent recommended by plaster manufacturer .

- Plaster: Board finish/ finish plaster to BS EN 13279-1.o Manufacturer: Submit proposals .

- Product reference: None .o Thickness: 3-5 mm .o Finish: Smooth.

- Accessories: Beads and stops .

WATERPROOFING ADDITIVE

- Manufacturer: Submit Proposals- Product Reference: None

HARDENER AND DUSTPROOFING TREATMENT

To submit proposals for Manufacturer. No Product Reference.

The treatment shall consist of three coats applied to surfaces which are clean, dry and freeof all loose dirt, oil, wax, sealers and other foreign matter. New concrete must bethoroughly cured for a minimum of 14 days.

DUSTPROOFING TREATMENT

To submit proposals for Manufacturer. No Product Reference

The treatment shall consist of two coats applied to surfaces which are clean, dry and havebeen adequately cured for a minimum of 14 days.

After the second coating, the surface shall be thoroughly washed and scrubbed with a stiffbroom to remove excess efflorescence.

THIN SET MORTAR : MATERIALS

Portland cement shall be grey or standard colour. Use white colour where specified forgrout.

Sand shall be 30 - 60 mesh silica, clean and graded natural sand. For grout, white sandpassing a 16-mesh screen shall be used.

To submit proposals for all motar additive and grouting Manufacturer. No Product reference.

FIELD TEST TO DETERMINE LEVEL OF CONTAMINANTS IN PLASTERING SAND

Carry out field tests as and when required by the Architect for determining the volume of siltand clay in plastering sand.

Prepare a salt solution using one teaspoonful of table salt to half litre of cold tap water. Filla clean jam jar to about one third of its volume with a sample of the plastering sand. Pour


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the prepared salt solution into the jam jar to about 90% full. Close lid of the jar, shake itscontents vigorously and leave to stand for half an hour. A layer of silt will settle over the topof the sand. Should the layer of silt exceeds one-tenth of the depth of the sand in the jar,the sand is too contaminated to be used and shall be rejected.

The Architect may also carry out a physical inspection of a batch of sand. If it stainsexcessively or balls up in the fingers when rubbed, the sand shall be removed from the Site

at the Contractor's expense.

MIXING MATERIALS

Materials shall be batched by volume in properly sized gauge boxes, one for each material.The materials shall be mechanically mixed or hand mixed on watertight boarded platforms.Mixes containing cement shall be used within two hours of the first contact of the cementwith water. All materials remaining after this period shall be discarded and not re-tempered.

Submit to the Architect certification from the supplier of the plasticiser incorporated in theplaster mix that the quantity used and the dosage is in accordance with the manufacturer'srecommendations.

PREPARATION OF SURFACES

Rake out joints of brickwork and blockwork for a depth of 10mm. Hack off projecting fins onconcrete work and remove all traces of mould oil, paint, grease, dirt and other incompatiblematerials by scrubbing with water containing detergent and washing off with clean water.Thoroughly hack surfaces to form a key.

Rake out joints between concrete work and brickwork of external walls and point with awaterproof cement grout.

Brush surfaces to remove all loose particles, dust, laitance and efflorescence, etc and well

wet and re-wet as required to receive coating and to equalise suction.

MOVEMENT JOINTS

Movement joints in the base shall be carried through applied coatings and finishings. Formjoints against properly braced timber formwork.

CURING

Work shall be kept damp and adequately cured to prevent shrinkage and cracking. Notraffic shall be permitted on insitu pavings or beds until 7 days after laying.

ANGLES IN PAVING, PLASTERING AND RENDERING

Internal angles shall be slightly coved, external angles and arrises slightly rounded true toline and with neatly formed mitres.

BEDS AND BACKINGS TO RECEIVE OTHER FINISHINGS


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Beds shall be laid in bays not exceeding 15m2 as near square shaped as is practicable.Bays shall be laid to break joint to avoid four corners coinciding and with at least 24 hoursallowed between placing adjacent bays.

Finish beds and backings with a screeded finish to receive insitu finishings or finishingsbedded in mortar; with a wood floated finish left plain to receive inflexible finishings fixedwith an adhesive; and with a smooth steel trowelled finish free from protuberances and

hollows to receive flexible finishings. Where the finishing will be executed by a specialistsub-contractor, the bed or backing shall be finished to the sub-contractor's approval. Insuch cases, the Contractor shall obtain the sub-contractor's written confirmation that thebed or backing is satisfactory in all respects and forward a copy of such confirmation to the

Architect.

PLACEMENT OF SCREEDS AND PAVINGS

Ensure proper adhesion between pavings and the structure and replace any loose ordefective work.

Place and finish the screeds and pavings in the following successive operations:-

Spread, rake, screed and thoroughly compact by hand, tamping or rolling with a 100kg roller. If a roller is used, three transverses shall be made in each direction.

Compact by hand at corners and at any joints as they are being formed.

Power float in two operations. Power floating shall be taken over joints in order toobtain a compact flush surface finish.

Power trowel in one operation to produce a smooth surface relatively free fromdefects but which may still contain some trowel marks.

After the surface has hardened, hand trowel to produce a surface free from trowelmarks, uniform in texture and appearance.

Screeds which are to receive surface application of materials such as waterproofingor roofing membranes shall be smoothly finished in strict accordance with the baseconditions required for such applications.

Immediately after trowelling, cure the surface as hereinbefore described.

All finished surfaces shall be finished to a true and even surface over the whole area.

Screeds and pavings finished to falls shall be laid to the levels shown on the drawings andshall be free from all irregularities and depressions so that water drains off the floor, leavingnone standing.

PROTECTION TO SCREEDS AND PAVINGS

Protect surfaces which are to receive subsequent finishes against mechanical damage, etcimmediately after laying. If, when the finish is to be laid, the surface shows irregularitieslikely to affect the finish, grind back within limits to 2.5mm below the intended finished leveland bring up to a finished level by the application of an approved levelling compoundapplied strictly in accordance with the manufacturer's recommendations.


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Protect paved surfaces after laying and limit traffic over the floor. Remove immediatelyprior to completion.

Take up and lay protective coverings as required for cleaning, sealing and polishing.Protection shall include a periodical cleaning where required to prevent dirt, grit, etc frombecoming engrained. No protective finish shall be laid or applied which will in any wayinhibit fixing of later floor finishes.

PLASTERWORK

Unless otherwise specified, plaster shall be applied in two coats to the total nominalthickness indicated. The first coat shall be cross scored to provide a key for the secondcoat which shall be 6mm thick trowelled or floated to produce a tight, matt, smooth surfacein a true plane to correct line and level with walls and reveals plumb and square.

Carry plaster into grooves and rebates of frames and finish with a slightly coved internalangle against metal window frames.

CEMENT PAVING

Immediately before laying, the surface shall be well dampened with a slurry of neat cementand water brushed on. The new paving shall be laid while the slurry is wet.

Paving shall be laid in bays not exceeding 15m2 as near square shaped as is practicable.Bays shall be laid to break joint to avoid four corners coinciding and with at least 24 hoursallowed between placing adjacent bays.

Finish surface true to plane with a smooth steel trowelled finish free from protuberancesand hollows.

POLYURETHANE FLOOR COATING

Manufacturer : Flowcrete Pte Ltd

Product Reference : DECKSHIELD ID

Location on Drawings : As shown on drawings.

GENERAL

Scope of Specification

This specification includes materials and installation methods (execution) required to installpolyurethane floor coating for a complete, operational system, including not limited to, thefollowing:

1. Heavy duty, wearing surface, solvent free polyurethane floor coating.2. Other items and accessories as indicated on the drawings and as specified herein.

All materials including, primers, sealents, resins, curing agents and finish coats are to beGreen Label certified or bear a similar international certification.


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References

Referenced publication within this specification shall be the latest revision, unless otherwisespecified, and applicable parts of the referenced publication shall become a part of thisspecification as is fully included.

Submittals

A. General: Submit the following items to the Architect/ Engineer for review inaccordance with the Contract requirements.

B. Product Data: For each type of product specified, include manufacturers technicaldata, installation instructions, and recommendations for each flooring componentrequired.

C. Sample for Initial Selection: Manufacturers colour charts showing the full range ofcolours, textures, and patterns available for each flooring system indicated.

D. Material Certificates: Material test reports, signed by manufacturers certifying thatmaterials furnished comply with requirements, in addition to the internationallyrecognized green certificates.

E. Installation Instructions: Submit Manufacturers standard installation instructions foreach type of flooring system specified.

Quality Assurance

A. Installer Qualifications: Engage an experienced installer (licensed applicator) whohas specialized in installing the flooring similar in material, design, and extent tothat indicated for this Project and who is acceptable to the flooring manufacturer.

1. Engage an installer who employs only persons trained and approved bythe flooring manufacturer for installing polyurethane flooring specified.

B. Source Limitations: Obtain primary flooring materials, including primers, resins,hardening agents, aggregates and sealing or finish coats, through one source froma single manufacturer. Provide secondary materials including patching and fillmaterial, joint sealant, and repair materials of type and from source recommendedby manufacturer of primary materials.

Delivery, Storage, and Handling

A. Deliver materials in original packages and containers, with seals unbroken,bearing manufacturers labels indicating brand name and directions forstorage and mixing with other components.

B. Store materials to comply with manufacturers written instructions toprevent deterioration from moisture, heat, cold, direct sunlight, or otherdetrimental effects.

C. Store materials in unopened containers at a temperature of 10C(minimum) to 30C (maximum).


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Project Conditions

A. Environmental Limitations: Comply with the flooring manufacturers writteninstructions for substrate temperature, ambient temperature, moisture, ventilation,and other conditions affecting the floor installation.

1. Work shall not proceed without proper results from moisture testing for

each flooring system and area of Work.

B. Lighting: Provide permanent lighting or, if permanent lighting is not in place,simulate permanent lighting conditions during the flooring installation.

C. Close spaces to traffic during the flooring application and for not less than 24 hours

after application, unless manufacturer recommends a longer period.

Warranty

The Owner shall receive a written warranty against defects due to improper material

performance and installation for a period of 5 years following the completion of installation.

PRODUCTS

Manufacturers and Products

A. Manufacturers: subject to compliance with requirements, products that maybe incorporated into work include

1. Flowcrete

2. Approved equivalent (Green Label certified or similar)

B. Available Products: Subject to compliance with requirements, products thatmay be incorporated into work include those indicated in the flooringschedule at the end of Part 3.

Materials

A. Polyurethane Flooring: The floor surfacing system consisting of solvent freepolyurethane primer, quartz aggregates, solvent free polyurethane top coat and UVresistant wearing surface polyurethane finish coat. Comply with requirementsindicated in the flooring Schedule.

B. Patching and Fill Materials: The patching and repair material for repairing the floorsubstrate should be recommended by the flooring manufacturer.

C. Joint Sealant: Type recommended or produced by the flooring manufacturer fortype of service and joint condition indicated.

1. Provide flooring manufacturers recommended high strength trafficable PUjoint sealant

D. Equipment: Mixing, cleaning, and application equipment shall be asrecommended in Manufacturers printed installation procedures.


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EXECUTION

Inspection

A. Inspect surfaces to be covered before starting work to ensure satisfactoryconditions. Report to Construction Manager in writing on surface andambient conditions not conforming to the manufacturers instructions, andnot within the scope of this specification. Starting work shall constructacceptance of surfaces and the responsibility for performance of finishedfloor.

B. The strength of the concrete substrate must be minimum 25N/mm2 incompressive strength.

C. All new concrete substrate must be a minimum 28 days old or the RH ofthe concrete must be below 5% prior to the application of the flooring.

D. The lowest basement floor must be waterproofed with a properwaterproofing material to ensure no rising moisture causing problem to thepolyurethane floor.

Preparation

A. General: Prepare and clean substrate according to the flooring manufacturerswritten instruction for substrate indicated. Provide clean, dry, and neutral substratefor the flooring application.

B. Concrete Substrates: Provide sound concrete surfaces free of laitance, glaze,curing compounds, form- release agents, dust, dirt, grease, oil, and other

contaminates incompatible with the flooring system.

1. Refer to the Flooring Schedule in Part 3 of this specification for floorpreparation requirements for the flooring systems.

2. Mechanical Abrasion: Shot blast surfaces with an apparatus that abradesthe concrete surface, contains the dispensed shot within the apparatus,and recirculates the shot by vacuum pickup. Upon completion of abrasiveblasting, remove residual abrasive, dust and loose particles from thesubstrate by vacuuming.

3. Repair damaged and deteriorated concrete according to manufacturerswritten recommendations.

C. Polyurethane Flooring Materials: Mix components and prepare materials according

to manufacturers written instructions.

D. Use patching and fill material to fill holes and depressions in substrates accordingto manufacturers written instructions.

E. Protect adjacent surfaces from damages resulting from work of this trade.

F. Safety precautions recommended by Manufacturer shall be followed in mixingand applying coating. Keep working area well ventilated, using fans if required forprotection of others in the area.


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Installation

A. General: Apply components of the flooring system according to manufacturerswritten instructions to produce a uniform, monolithic wearing surface of thicknessindicated.

1. Coordinate application of components to provide optimum adhesion of theflooring system to substrate and optimum intercoat adhesion.

2. Cure the flooring components according to manufacturers writteninstructions. Prevent contamination during application and curingprocesses.

3. Reinforce construction joints, cracks, next to expansion joints andtermination grooves, and all horizontal/ vertical and vertical junctions byapplying centrally a band of polyurethane primer and a coat of flexiblepolyurethane undercoat not less than 50mm wide. Similarly treat all gullies,rainwater outlets, penetrations, etc.

B. Application Procedures

1. Apply a coat of solvent free polyurethane primer over prepared substrate atmanufacturers recommended coverage rate. Allow to cure for 6- 8 hours orovernight.

2. Apply a full blinding of 20 to 80s graded Natural Quartz aggregatesimmediately cast into wet film at manufacturers recommended coveragerate. Allow to cure for 6 to 8 hours or overnight.

3. Vacuum and sweep blinded surface to remove all non- bonded aggregates.4. Apply a coat of solvent free polyurethane vehicular trafficable top coat at

manufacturers recommended coverage rate. Allow to cure or overnight.5. Apply a coat of UV resistant polyurethane wearing surface finish coat at

manufacturers recommended coverage rate. Allow to cure or overnight.

E. Trafficking

1. 24 hours shall be allowed for opening completed areas to foot traffic and 72hours for vehicular traffic.

Cleaning and Protection

A. Clean the flooring not more than 4 days before dates scheduled for inspectionsintended to establish date of Substantial Completion in each Project area. Usecleaning materials and procedures recommended in writing by flooringmanufacturer.

Polyurethane Floorng Schedule

Solvent Free, Anti-slip Polyurethane Flooring System

1. Finish: A non- slip wearing surface solvent free polyurethane floor coating.

2. Product: Deckshield IDsolvent free polyurethanefloor coatings manufactured by Flowcrete or approved equivalent


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4. Colour: As selected by Owner from manufacturers full range of coloursand patterns produced for the flooring complying with requirementsindicated.

5. WearingSurface: Anti-slip

6. Thickness: 1.5mm

7. Physical Properties: Provide resinous flooring system with the followingminimum physical property requirements when tested according to standard testmethods indicated:

1. Fire Resistance Ext FF.AA (BS476: Part 3)

2. Slip Resistance Dry 92 Wet 46 (TRRL Pendulum Test)

3. Water Permeability 0 (Karsten Test)

4. Abrasion Resistance 40mg loss per (1kg Load using1000 cycles H- 22 Wheels)

5. Tear Strength 192N (MOAT 27Method 5.4.1)

6. Bond Strength Greater than cohesive of 25N/mm2 concrete.> 1.5Mpa

7. UV Resistance Excellent

8. Chemical Resistance Petrol - ExcellentDiesel ExcellentBattery acids ExcellentHydraulic fluid Excellent

Motor Oil Excellent

9. Resistance to chloride No Chloride ion (DOTions penetration after BD47/94:Appendix B

28 days Method B4, 2(d))

POLYURETHANE SELF SMOOTHING FLOOR FINISH

Manufacturer : Flowcrete Pte Ltd

Product Reference : FLOWFRESH SL (to add in 50mm high HF COVE skirting)

Location on Drawings : As shown on drawings.

1.0 GENERAL

1.1 Summary

A. Scope of Specification

This specification includes materials and installation methods (execution) requiredto install resinous flooring for a complete, operational system, including not limitedto, the following:


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3. Anti- microbial polyurethane self smoothing floor4. Other items and accessories as indicated on the drawings and as specified

herein.

All materials including, primers, sealants, resins, solvents, curing agents and finish coatsare to be Green Label certified or bear a similar international certification.

1.2 References

Referenced publication within this specification shall be the latest revision, unless otherwisespecified, and applicable parts of the referenced publication shall become a part of thisspecification as is fully included.

1.3 Submittals

F. General: Submit the following items to the Architect/ Engineer for review inaccordance with the Contract requirements.

G. Product Data: For each type of product specified, include manufacturers technicaldata, installation instructions, and recommendations for each resinous flooringcomponent required.

H. Sample for Initial Selection: Manufacturers colour charts showing the full range ofcolours, textures, and patterns available for each resinous flooring system indicated.

I. Product Schedule: Use designations indicated in the Resinous Flooring Scheduleand room designations indicated on Drawings in product schedule.

J. Installation Instructions: Submit Manufacturers standard installation instructions foreach type of resinous flooring system specified.

1.4 Quality Assurance

C. Installer Qualifications: Engage an experienced installer (licensed applicator) whohas specialized in installing resinous flooring similar in material, design, and extentto that indicated for this Project and who is acceptable to resinous flooringmanufacturer.

2. Engage an installer who employs only persons trained and approved byresinous flooring manufacturer for installing resinous flooring systemsspecified.

B. Source Limitations: Obtain primary resinous flooring materials, includingprimers, resins, hardening agents, and sealing or finish coats, through one sourcefrom a single manufacturer. Provide secondary materials including patching and fillmaterial, joint sealant, and repair materials of type and from source recommended

by manufacturer of primary materials.

1.5 Delivery, Storage, and Handling

A. Deliver materials in original packages and containers, with seals unbroken,bearing manufacturers labels indicating brand name and directions forstorage and mixing with other components.

B. Store materials to comply with manufacturers written instructions toprevent deterioration from moisture, heat, cold, direct sunlight, or otherdetrimental effects.


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C. Store materials in unopened containers at a temperature of 10C(minimum) to 30C (maximum).

1.6 Project Conditions

A. Environmental Limitations: Comply with resinous flooring manufacturers

written instructions for substrate temperature, ambient temperature, moisture,ventilation, and other conditions affecting resinous flooring installation.

2. Work shall not proceed without proper results from moisture testing foreach flooring system and area of Work.

B. Lighting: Provide permanent lighting or, if permanent lighting is not in place,simulate permanent lighting conditions during resinous flooring installation.

C. Close spaces to traffic during resinous flooring application and for not less than24 hours after application, unless manufacturer recommends a longer period.

1.7 Warranty

The Owner shall receive a written guarantee against defects due to improper material andinstallation for a period of 5 years following the completion of installation.

2.0 PRODUCTS

2.1 Manufacturers and Products

A. Manufacturers: subject to compliance with requirements, products that maybe incorporated into Work include

3. Flowcrete

4. Approved equivalent (Green Label certified or similar)

B. Manufacturers Product Designations: The product designations and names of oneor more manufacturer are listed for each flooring system type required for thepurpose of establishing minimum requirements. Provide either the productdesignated or, where more than one manufacturer is listed or specified above, thecomparable product of one of the other manufacturers that complies withrequirements indicated.

2.2 Materials

B. Resinous Flooring: Resinous floor surfacing system consisting of primer, bodycoat(s) including resin, hardener and aggregates, if any; and sealing or finish

coat(s). Comply with requirements indicated in the Resinous Flooring Schedule.

1. Waterproofing Membrane: Resinous product of or approved byresinous flooring manufacturer and recommended by manufacturer forapplication indicated.

B. Patching and Fill Materials: Resinous product of or approved by resinousflooring manufacturer and recommended by manufacturer for application indicated.

C. Joint Sealant: Type recommended or produced by resinous flooring manufacturerfor type of service and joint condition indicated.


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FUNTASY ISLAND RESORT AT PULAU MANIS,BATAM, PROVINSI