VA FED H-08-1 SEC 07531-2003 PVC SHEET ROOFING《PVC板材屋面》.pdf

1、09-03M07531-1SECTION 07531PVC SHEET ROOFINGSPEC WRITER NOTES:1. Delete between /_ _ _/ if notapplicable to project. Also delete anyother item or paragraph not applicablein the section and renumber theparagraphs.2. Slopes: Do not use on slopes over 1:12(one inch per foot). Provide 1:50 (1/4inch per f

2、oot) minimum slope to drainswithout any “Gutters“ (no slopesbetween drains. NO EXCEPTIONS TOMINIMUM SLOPE. Slope crickets 1:50(1/4-inch per foot).3. Coordinate with plumbing requirementsfor roof drains and drain locations atlow points and mid span where maximumdeflection occurs. Do not put drains at

3、columns or on slopes. Coordinate withinsulation to provide “dishes“ atdrains.4. Coordinate details and systems used toprovide for code required fire ratedroofing system. Do not use unsurfacedmembranes over combustible insulationon decks.5. Use of adhered system is preferred overmechanically anchored

4、 or ballastedsystem.6. When a ballasted system is used:a. Coordinate to insure structuraldesign provides for square foot ofballast dead load for aggregate andpaving. Do not use on an existingstructure where the structural systemwill not take the ballast dead load.b. Design for wind uplift at site.c.

5、 Select rate of ballast applied inaccordance with FM Data Sheets 1-7,1-28, and Technical Advisory Bulletin(TAB) 1-29.d. Use pavers or loose aggregate, orboth, over membrane.e. Coordinate details to provide raisedroof edge 200 mm (8 inches) minimumabove surface of aggregate ballast orclamping device

6、for pavers at edge andstrapping where necessary when parapetwalls over 600 mm (24 inches) high donot occur.f. Do not use over loose laidinsulation.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-03M07531-27. Coordinate with Section 07220 for roofi

7、nsulation under the membrane. Decrease “R“ value 5 percent whenmechanical fasteners are used throughthe insulation to compensate forparallel heat flow.8. Do not use over polystyrene, urethane,or wood fiberboard insulation under themembrane.9. Do not use over bituminous materialswhere direct contact

8、occurs, includinggrease, oil, or other substances notcompatible with PVC. Use a thin layerof insulation, slip sheet or separatorsheet depending upon method ofattachment or felt back sheet whenminimum amount of asphalt occurs.10. Terminate base flashings not less than200 mm (8 inches) above roof surf

9、aceincluding curb for building expansionjoints.11. Do not put expansion joints at roofsurface level.12. Do not use “pitch pocket“ or “sealantpocket“ in lieu of base flashings andcap flashings.13. This specification is for use overconcrete, cellular insulating concretedecks, or insulation. Insertaddi

10、tional text when installed directlyto other decks or insulation systemsnot specified in Section 07220.PART 1 GENERAL1.1 DESCRIPTIONPolyvinyl Chloride (PVC) sheet roofing / adhered / mechanicallyfastened / ballasted / to roof deck.1.2 RELATED WORKA. Treated wood framing, blocking, and nailers: Sectio

11、n 06100, ROUGHCARPENTRY.B. Roof Insulation: / Section 07220, ROOF AND DECK INSULATION / Section07221, PROTECTIVE MEMBRANE ROOF INSULATION /.C. Aggregate and paver ballast: Section 07570, PAVERS AND AGGREGATE ROOFBALLAST.D. Metal cap flashings, copings, fascias, and expansion joints: Section07600, FL

12、ASHING AND SHEET METAL.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-03M07531-3E. Roof hatches, equipment supports, dome type skylights, and gravityventilators: Section 07800, ROOF ACCESSORIES.F. Mechanical equipment supports: Section 15822, FAN

13、S and Section 15840,DUCTWORK AND ACCESSORIES.1.3 QUALITY ASSURANCEA. Approved applicator by the membrane roofing system manufacturer, andcertified by the manufacturer as having the necessary expertise toinstall the specific system.B. Pre-Roofing Meeting:1. Upon completion of roof deck installation a

14、nd prior to any roofingapplication, hold a pre-roofing meeting arranged by the Contractorand attended by the Roofing Inspector, Material ManufacturersTechnical Representative, Roofing Applicator, Contractor, andResident Engineer.2. Discuss specific expectations and responsibilities, constructionproc

15、edures, specification requirements, application, environmentalconditions, job and surface readiness, material storage, andprotection.3. Inspect roof deck at this time to:a. Verify that work of other trades which penetrates roof deck iscompleted.b. Determine adequacy of deck anchorage, presence of fo

16、reignmaterial, moisture and unlevel surfaces, or other conditions thatwould prevent application of roofing system from commencing orcause a roof failure.c. Examine samples and installation instructions of manufacturer./d. Perform pull out test of fasteners (See paragraph 3.2). /1.4 SUBMITTALSA. Subm

17、it in accordance with Section 01340, SAMPLES AND SHOP DRAWINGS.B. Applicators approval certification by manufacturer.C. Shop Drawings:1. Sheet membrane layout.2. Fastener pattern, layout, and spacing requirements.3. Termination details.D. Manufacturers installation instructions revised for project.E

18、. Samples:Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-03M07531-41. Sheet membrane: One 150 mm (six inch) square piece.2. Sheet flashing: One 150 mm (six inch) square piece.3. Fasteners: Two, each type.4. Welded seam: Two 300 mm (12 inch) squar

19、e samples of welded seams torepresent quality of field welded seams.1.5 DELIVERY, STORAGE AND HANDLINGA. Deliver, store, and handle materials as specified by manufacturer.B. Store volatile materials separate from other materials with separationto prevent fire from damaging the work or other material

20、s.1.6 GUARANTEERoofing work subject to the terms of the Article GUARANTY of Section,GENERAL CONDITIONS, except extend the guaranty period to five years.1.7 APPLICABLE PUBLICATIONSA. Publications listed below form a part of this specification to theextent referenced. Publications are referenced in th

21、e text by the basicdesignation only.B. American Society for Testing and Materials (ASTM):A167-99.Stainless and Heat-Resisting Chromium-NickleSteel Plate, Sheet and StripB209-02.Aluminum and Aluminum-Alloy Sheet and plateD2103-02Polyethylene Film and SheetingD2240-02Rubber Property - Durometer Hardne

22、ssD4434-96Poly (Vinyl Chloride) Sheet RoofingD4586-00Asphalt Roof Cement, Asbestos FreeE96-00Water Vapor Transmission of MaterialsE108-00.Fire Tests of Roof CoveringsFl667-02Driven Fasteners: Nails, Spikes, and StaplesG21-96Resistance of Synthetic Polymeric Materials toFungiC. National Roofing Contr

23、actors Association (NRCA):Fifth Edition.The NRCA Roofing and Waterproofing Manual.D. Federal Specifications (Fed. Spec.)FF-S-107C (2).Screws, Tapping and DriveFF-S-111D (1).Screw, WoodProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-03M07531-5UU-B-

24、790A.Building Paper, Vegetable Fiber (Kraft,Waterproofed, Water Repellent and FireResistant)E. Factory Mutual Engineering and Research Corporation (FM):Annual IssueApproval Guide Building Materials.F. Underwriters Laboratories, Inc. (UL):Annual IssueBuilding Materials DirectoryAnnual IssueFire Resis

25、tance DirectoryG. Warnock Hersey (WH):Annual IssueCertification ListingsPART 2 - PRODUCTSSPEC WRITER NOTE:1. Make material requirements agree withapplicable requirements specified inthe referenced Applicable Publications.2. Update and specify only that whichapplies to the project.3. Use felt back sh

26、eet for adhered systemsto cellular insulating concrete orstructural concrete.4. Mechanically anchor to vermiculite orperlite insulating concrete.5. Use sheets without felt backing onrigid insulation boards.6. Use of 0.6 Kg/m2 (18 oz) felt backingsheet is acceptable for reroofing overasphalt mineral

27、granule or pigmentedaluminum surface roof or asphaltresidue on stripped decks.2.1 PVC SHEET ROOFINGA. Conform to ASTM D4434.1. Type II for adhered and / ballasted / system, Grade 1 or 2./2. Type III, reinforced sheet for mechanically attached system. /B. Thickness:1. Minimum 1.14 mm (0.045 inch) thi

28、ck for fully adhered system.2. Minimum 1.5 mm (0.060 inch) thick for flashing, / mechanicallyanchored / ballasted system /.C. Additional Properties:PROPERTY TEST METHOD REQUIREMENTShore A Hardness ASTM D2240-97 70 to 85 DurometerWater Vapor ASTM E96-95 Minimum 0.14 permsProvided by IHSNot for Resale

29、No reproduction or networking permitted without license from IHS-,-,-09-03M07531-6Permeance (Water Method)Fungi Resistance(For ballastedSystem)ASTM G21-96 After 21 days, nosustained growth ordiscoloration.Fire Resistance ASTM E108 Class A - NoCombustion BeyondFlame/Heat Source2.2 SOLVENT WELDING SOL

30、UTION, SEAM SEALANTS, AND ADHESIVESA. Sheet roofing manufacturers specified products.B. Solvent: Liquid tetrahydrofuran for roofing and flashing for solventwelding.C. Sealant: Liquid PVC for roofing sheet exposed lap edge.D. Bonding Adhesives: Compatible with roofing membrane, flashing membrane,insu

31、lation, metals, concrete, and masonry for bonding roofing andflashing to substrate.2.3 FASTENERSA. Fasteners and washers required for sheet roofing to deck.1. Steel stress plate washers as required by sheet roofing manufacturer.a. Coated against corrosion.b. Separate or attached to fastener.c. Appro

32、ximately 50 mm (two inch) diameter or 38 x 63 mm (1-1/2 by2-1/2 inch) rectangular plate with rounded corners, minimumthickness of 0.6 mm (0.023 inch).2. Metal Fastening Strip or Batten for Roof Membrane to Deck or Wall:a. Stainless steel strip: ASTM A167, type 302 or 304, minimum 0.45 mm(0.018 inch)

33、 thick.b. Aluminum strip: ASTM B209, minimum 2.4 mm (0.094 inch) thick.c. PVC coated steel strips minimum 2.4 mm (0.094 inch) thick asspecified by membrane manufacturer.d. Form strips 38 mm (1-1/2 inches) wide, 2400 mm (eight-feet)maximum length with punched 6 x 9 mm (1/4 by 3/8 inch) slottedholes a

34、t 300 mm (one foot) center centered on width of strip.Punch holes 2 mm (1/16 inch) larger than shank when fastener shankis thicker than 5 mm (3/16 inch). Round corners on strips. Punchfirst holes 25 mm (one inch) from strip ends.Provided by IHSNot for ResaleNo reproduction or networking permitted wi

35、thout license from IHS-,-,-09-03M07531-73. Steel Deck Screws: Fed. Spec FF-S-107, hardened nylon screw or steelscrew coated to resist corrosion, self drilling, anti-backout threaddesign. Minimum pullout resistance of 300 pounds; minimum threadpenetration of 13 mm (1/2 inch).4. Gypsum, Insulating Con

36、crete, and Structural Cement Fiber Deck:Diverging or hooking point fastener anti-spin fitting; coated toresist corrosion, minimum pullout resistance of 450 pounds.5. Concrete and Masonry Wall Surfaces:a. Nails: ASTM F1667, Type I, Style 11 or 17.b. Penetration of 13 mm (1/2 inch).6. Wood Screws:a. F

37、ed. Spec. FF-S-111, Type I, Style 2.5, coated to resistcorrosion, length to provide 19 mm (3/4 inch) minimum penetration.b. Nails: ASTM F1667, Type I; style 20, barbed shank, galvanized.7. Washers: Neoprene backed metal washer 28 mm (1-1/8 inch) minimumdiameter.8. To Sheet Metal: Self tapping screw;

38、 Fed. Specs. FF-S-107, No. 14,sheet metal screw, minimum thread penetration of 6 mm (1/4 inch);stainless steel.B. Pipe Compression Clamp or Drawband:1. Stainless steel or cadmium plated steel drawband.2. Worm drive clamp device.C. Surface Mounted Base Flashing Clamp Strip:1. Stainless steel strip, A

39、STM A167 Type 302 or 304 dead soft temper,minimum 0.45 mm (0.018 inch) thick.2. Aluminum strip: ASTM B209, alloy H14, minimum 2.4 mm (0.094) inchthick.3. For exposed location form strips with 6 mm (1/4 inch) wide top edgebent out 45 degrees (for sealant) from 38 mm (1-1/2 inch) widematerial; 2400 mm

40、 (eight feet) maximum length, with slotted holes 6 x9 mm (1/4 inch by 3/8 inch) holes punched at 300 mm (one foot)centers, centered between bend and bottom edge.4. For locations covered by cap flashings, form strips 32 mm (1-1/4inches) wide; 2400 mm (eight feet) maximum length. With slottedholes 6 x

41、 9 mm (1/4 by 3/8 inch) punched at 300 mm (one foot)centers, centered on strip width.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-03M07531-82.4 VAPOR RETARDER OR SEPARATION SHEETSA. Polyethylene film: ASTM D2103, six-mils thick.B. Building Pape

42、r: Fed. Spec. UU-B-790.1. Water vapor resistance: Type I, Grade A, Style 4. reinforced.2. Water vapor permeable: Type I, Grade D, Style 4 reinforced.2.5 FLEXIBLE TUBINGA. Closed cell neoprene, butyl polyethylene, vinyl, or polyethylene tube orrod.B. Diameter approximately 1-1/2 times joint width.PAR

43、T 3 - EXECUTION3.1 GENERALA. Do not apply roof membrane if deck will be used for subsequent workplatform, storage of materials, or staging or scaffolding will beerected thereon unless protection provided to distribute loads less thanone half compression resistance of roofing system materials:1. Curb

44、s, blocking, edge strips, and other components to which roofingand base flashing is attached to in place ready to receive insulationand roofing.2. Coordinate roof operations with sheets metal work and roof insulationwork so that insulation and flashings are installed concurrently topermit continuous

45、 roofing operations.3. Complete installation of flashing, insulation, and roofing in thesame day except for the area where temporary protection is requiredwhen work is stopped.B. Phased construction is not permitted.C. Dry out surfaces /, including the flutes of metal deck, / that becomewet from any

46、 cause during progress of the work before roofing work isresumed.D. Apply materials only to dry substrates.E. Except for temporary protection specified, do not apply materials duringdamp or rainy weather, during excessive wind conditions, nor whilemoisture (dew, snow, fog, ice, or frost) is present

47、in any amount in oron the materials or when temperature is below 2o C (35 degrees F). 1. Do not apply materials to substrate having temperature of 2o C (35degrees F) or less or when materials applied with the roof requirehigher application temperature.Provided by IHSNot for ResaleNo reproduction or

48、networking permitted without license from IHS-,-,-09-03M07531-92. Do not apply materials when the temperature is below 2o C (35 degreesF).F. Temporary Protection:1. Install temporary protection consisting of a temporary seal and watercut-offs at the end of each days work and when work is halted for

49、anindefinite period or work is stopped when precipitation is imminent.2. Temporarily seal exposed surfaces of insulation within the roofingmembrane.3. Do not leave insulation surfaces or edges exposed.4. Use polyethlene film to separate roof sheet from bituminousmaterials.5. Apply the temporary seal and water cut off by extending the roofmembrane beyond the insulation and securely embedding the edge of ther