VA 07 51 00-2009 BUILT-UP BITUMINOUS ROOFING.pdf

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1、03-09M 07 51 00 - 1 SECTION 07 51 00 BUILT-UP BITUMINOUS ROOFING SPEC WRITER NOTES: 1. Delete information not specifically related to this project. 2. Delete paragraphs not applicable and renumber the paragraphs. 3. Delete between /_/ if not applicable to project. PART 1 GENERAL 1.1 DESCRIPTION This

2、 section includes bituminous built-up roofing, aggregate surfacing, with base flashing for new construction / repairs and alterations to existing construction. / 1.2 RELATED WORK SPEC WRITER NOTE: Edit Related Work to indicate other Sections relating directly to this section or referenced in this se

3、ction. A. Gypsum Concrete Systems: Section 03 51 16, GYPSUM CONCRETE ROOF DECKS / Section 03 55 11, GYPSUM CONCRETE FLOOR DECKS/ B. Insulating Concrete Systems: Section 03 52 00, LIGHTWEIGHT CONCRETE ROOF INSULATION./ C. Wood cants, blocking, and wood edge strips: Section 06 10 00, ROUGH CARPENTRY.

4、D. Wood sheathing: Section 06 10 00, ROUGH CARPENTRY. E. Insulation: Section 07 22 00, ROOF AND DECK INSULATION. F. Vapor barrier: Section 07 22 00, ROOF AND DECK INSULATION. G. Base sheet for insulated roof assemblies: Section 07 22 00, ROOF AND DECK INSULATION. H. Metal base flashing, pipe flashin

5、g, counter flashing, /gravel stop, fascia, coping, gutter and downspout, splash pan, reglet, insulated expansion joint cover, scupper /: Section 07 60 00, FLASHING AND SHEET METAL. I. Extruded aluminum gravel stop, coping, fascia, and expansion joint cover: Section 07 71 00, ROOF SPECIALTIES and Sec

6、tion 07 72 00, ROOF ACCESSORIES. 1.3 APPLICABLE PUBLICATIONS A. Applicable publications listed below form a part of this Specification as referenced. Publications are referenced in the text by the number designation only. Provided by IHSNot for ResaleNo reproduction or networking permitted without l

7、icense from IHS-,-,-03-09M 07 51 00 - 2 B. American Society for Testing and Materials (ASTM): A167-99(R2004)Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet and Strip B209-07.Aluminum and Aluminum-Alloy Sheet and Plate D41-05Asphalt Primer Used in Roofing, Dampproofing and Waterproofi

8、ng D43-00(R2006).Coal Tar Primer Used in Roofing, Dampproofing and Waterproofing D227-03.Coal-Tar Saturated Organic Felt Used in Roofing and Waterproofing D312-00(R2006)Asphalt Used in Roofing D448-08.Sizes of Aggregate for Road and Bridge Construction D450-07.Coal-Tar Pitch Used in Roofing, Damppro

9、ofing and Waterproofing D751-06.Test Methods for Coated Fabrics D1863-05Mineral Aggregate Used on Built-Up Roofs D2178-04Asphalt Glass Felt Used in Roofing and Waterproofing D3884-07Abrasion Resistance of Textile Fabrics (Rotary Platform Double-Head Method) D3909-97(R2004).Asphalt Roll Roofing (Glas

10、s Felt) Surfaced with Mineral Granules D4586-07Asphalt Roof Cement, Asbestos Free D4601-04Asphalt Coated Fiberglass Base Sheet Used In Roofing D4897-01Asphalt Coated Glass Fiber Venting Base Sheet Used in Roofing D6163-00Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Mat

11、erials Using Glass Fiber Reinforcements F1667-05Driven Fasteners: Nails, Spikes, Staples C. FM Global (FMG): P7825C-05.Approval Guide Building Materials 4450:.Approved Standard for Class 1 Insulated Steel Deck Roofs 4470:.Approved Standard for Class 1 Roof Coverings Provided by IHSNot for ResaleNo r

12、eproduction or networking permitted without license from IHS-,-,-03-09M 07 51 00 - 3 D. National Roofing Contractors Association (NRCA): “Quality Control Guidelines for the Application of Built-up Roofing.“ “The NRCA Roofing and Waterproofing Manual“ 1.4 WARRANTY Roofing system is subject to terms o

13、f “Warranty of Construction“, FAR clause 52.246-21, except that warranty period is extended to five years. 1.5 QUALITY CONTROL A. Applicator Qualifications: Installer experienced in installation of systems similar in complexity to that required for this Project, including specific requirements indic

14、ated: 1. Work shall be performed by installer approved in writing by roofing material manufacturer. 2. Work shall comply with printed instructions of the roofing materials manufacturer. B. Product/Material Qualifications: 1. Provide manufacturers label on each container or certification with each lo

15、ad of bulk bitumen, indicating Flash Point (FP), Finished Blowing Temperature (FBT), Softening Point (SP), Equiviscous Temperature (EVT). 2. Provide manufacturers certification that field applied bituminous coatings and mastics, and field applied roof coatings comply with limits for Volatile Organic

16、 Compounds (VOC) per the National Volatile Organic Compound Emission Standards for Architectural Coatings pursuant to Section 183(e) of the Clean Air Act with limits as follows: a. Bituminous Coatings and Mastics: 500 g/l (4.2#/gal.). b. Roof Coatings: 250 g/l (2.1#/gal.). 3. Obtain products from si

17、ngle manufacturer or from sources recommended by manufacturer for use with roofing system. C. Comply with the recommendations of the NRCA “Roofing and Waterproofing Manual” applicable to built-up roofing for storage, handling and installation. D. FMG Listing: Provide roofing membrane, base flashing,

18、 and component materials that comply with requirements in FMG 4450 and FMG 4470 as part of a roofing system and that are listed in FMG “Approval Guide“ for Class 1 or noncombustible construction, as applicable. Identify materials with FMG markings. Provided by IHSNot for ResaleNo reproduction or net

19、working permitted without license from IHS-,-,-03-09M 07 51 00 - 4 SPEC WRITER NOTE: 1. Select one option in first subparagraph below based on windstorm classification of Project. FMG Loss Prevention Data Sheet 1-28 multiplies the actual field-of-roof uplift pressure by a factor of 2 to obtain the f

20、actored pressure, the number that establishes the minimum FMG approval rating. 2. Verify availability of roofing systems that meet these classifications. Other options for classifications increase in increments of 15, e.g., Class 1A-135, 1A-150, 1A-165, and higher. 3. “Class 1A“ signifies meeting AS

21、TM E108, Class A fire performance for FMG-approved Class 1 roof coverings. 4. For areas having three or more hailstorms annually, FMG recommends roofing systems rated SH (severe hail) instead of MH (moderate hail). 1. Fire/Windstorm Classification: Class 1A-60 / 75 / 90 / 105 120 /. 2. Hail Resistan

22、ce: MH / SH /. 1.6 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES. B. Product Data: 1. Asphalt materials, each type. 2. / Coal-tar materials, each type. / 3. Roofing cement, each type. 4. / Roof walkway. / 5. Fastening requirements. C. Certificates

23、: 1. Indicate materials and method of application of roofing system meet requirements of FMG. 2. Statements of qualification for manufacturers and installers. 3. Inspection Report: Copy of roofing system manufacturers inspection report certifying completed roofing complies with manufacturers warrant

24、y requirements. D. Warranty: As specified in Part 1 of this Section: 1. Warranty sample form with specific language to address Contract provisions. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-09M 07 51 00 - 5 E. Contract Close-out Submittals:

25、1. Maintenance Manuals. 2. Warranty signed by installer and manufacturer. 1.7 DELIVERY, STORAGE AND MARKING A. Deliver roofing materials to the site in original sealed packages or containers marked with the name and brand or trademark of the manufacturer or seller. B. Keep roofing materials dry and

26、store in a dry, weather-tight facility or under canvas covers. Do not use polyethylene or plastic covers to protect materials. Store above ground or deck level on wood pallets. Cover ground under pallet stored materials with plastic. 1. Store rolled materials (felts, base sheets, and paper) on end.

27、Do not store hems on top of rolled materials. 2. Aggregates shall be maintained surface dry as defined by ASTM D1863. C. Protect from damage due to handling, weather and construction operations before, during and after installation. 1.8 ENVIRONMENTAL REQUIREMENTS A. Weather Limitations: Proceed with

28、 installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturers written instructions and warranty requirements. B. Environmental Controls: Refer to Section 01 57 19, TEMPORARY ENVIRONMENTAL CONTROLS. C. Protection of interior spaces

29、: Refer to Section 01 00 00, GENERAL REQUIREMENTS. PART 2 PRODUCTS 2.1 ROOFING SYSTEM SPEC WRITER NOTE: Always retain paragraph below. The term bitumen, as defined in ASTM D1079, includes both asphalt and coal-tar pitch in roofing applications. A. Install built-up roofing membrane system according t

30、o roofing system manufacturers written instructions and applicable recommendations of NRCA “Quality Control Guidelines for the Application of Built-up Roofing.“ SPEC WRITER NOTE: 1. Delete substrates and listings of components and quantities which do not apply. Provided by IHSNot for ResaleNo reprod

31、uction or networking permitted without license from IHS-,-,-03-09M 07 51 00 - 6 2. Include the requirement for base sheet or venting base sheet when roofing is uninsulated. Do not include this requirement when the roof is insulated per 07220 or the substrate is plywood. 3. No coal tar bitumen system

32、 is provided. Use asphalt bitumen system and substitute “coal-tar” for “asphalt” and change materials to those listed for coal tar. B. Glass sheet, asphalt bitumen, mineral surfaced. 1. Substrate: Plywood / Wood. / 2. Components: Quantity. a. / Base Sheet: 1 Ply dry / b. Base Sheet: 1 Ply c. Ply She

33、et: 2 Plies d. Mineral Surfaced Cap Sheet: 1 Ply e. Asphalt On Base Sheet 10-17.5 kg/10 sq. meters (20-35 lbs/100 sq. ft.) f. Asphalt Between Each Ply 10-17.5 kg/10 sq. meters (20-35 lbs/100 sq. ft.) SPEC WRITER NOTE: Include the requirements for one ply of ventilating base sheet and three plies of

34、ply felt where substrate is cast-in-place insulating concrete or precast concrete or aged concrete suspected of having retained moisture. This requirement specified in 07220 when substrate is insulated. 1. Substrate: Roof Insulation / Cast-In-Place Concrete / Precast Concrete. / 2. Components: Quant

35、ity a. / Ventilating Base Sheet: 1 Ply / b. Ply Sheet: 3 / 2 / Plies c. Mineral Surfaced Cap Sheet: 1 Ply d. Asphalt Between Substrate / Ventilating Base Sheet, / and First Ply: 10-17.5 kg/10 sq. meters 20-35 lbs/100 sq. ft. e. Asphalt Between Each Ply 10-17.5 kg/10 sq. meters 20-35 lbs/100 sq. ft.

36、3. Provide asphalt quantities within the indicated ranges, unless recommended otherwise in the roofing materials manufacturers printed data. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-09M 07 51 00 - 7 2.2 MATERIALS A. Primer: ASTM D41. B. Bas

37、e Sheet: ASTM D4601, Type II, nonperforated, asphalt-impregnated and coated, glass-fiber sheet, dusted with fine mineral surfacing on both sides. C. Venting Base Sheet: ASTM D4897, Type II, venting, nonperforated, heavyweight, asphalt-impregnated and -coated, glass-fiber base sheet with coarse granu

38、lar surfacing or embossed venting channels on bottom surface. D. Asphalt: ASTM D312, Type III or IV for roof membrane. Use Type I for pour coat unless specified otherwise. E. Ply Sheet/Backer Sheet: ASTM D2178, Type VI, heavy-duty ply sheet. F. Cap Sheet: ASTM D3909, asphalt-impregnated and -coated,

39、 glass-fiber cap sheet, with white coarse mineral-granule top surfacing and fine mineral surfacing on bottom surface. G. Roof Cement: ASTM D4586, Type I / Type II /. H. Flashing Sheet: ASTM D6163, Type I or II, glass-fiber-reinforced, SBS-modified asphalt sheet; granular surfaced; suitable for appli

40、cation method specified. SPEC WRITER NOTE: Coal-tar BUR systems are typical for flat or minimally sloped roofs or roofs designed for water cooling, water retaining, or restricted drainage where asphalt BUR systems should not be considered. Do not use coal tar on slopes over 1:10 (one inch per foot).

41、 /2.3 COAL-TAR MATERIALS A. Primer: ASTM D43. B. Organic Felt: ASTM D227, except bitumen shall be low fuming, non-blooming type. C. Coal-Tar Bitumen: ASTM D450, Type III. D. Roof Cement: Roofing manufacturers standard, asbestos free. / 2.4 MISCELLANEOUS MATERIALS A. Aggregate: 1. ASTM D1863, except

42、the use of crushed stone is prohibited. 2. Slag or gravel. Use slag on slopes over 1:10 (one inch per foot). B. Roof Walkway: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-03-09M 07 51 00 - 8 1. Prefabricated asphalt plank consisting of a homogeneo

43、us core of asphalt, plasticizer and inert fillers, bonded by heat and pressure between two saturated and coated sheets of felt: a. Topside of plank surfaced with ceramic granules. b. Size: Minimum 13 mm (1/2-inch) thick, manufactures standard size, but not less than 300 mm (12 inches) in least dimen

44、sion and 600 mm (24 inches) in length. 2.4 FASTENERS A. Nails and Staples: ASTM F1667. B. Nails for Securing built-up Flashing and Base Sheets to Wood Nailers and Deck: 1. Zinc coated steel roofing nails with minimum head diameter of 10 mm (3/8-inch) through metal discs at least 25 mm (one inch) acr

45、oss. 2. One-piece nails with an integral flat cap at least 24 mm (15/16-inch) across. C. Fasteners for Securing Dry Felt Edge Strips to Wood Nailer and Decks: 1. Zinc coated steel roofing nails, 16-mm (5/8-inch) minimum head diameter. 2. Staples, Flat top Crown, zinc coated may be used. D. Nails for

46、 Plywood: 1. Use annular thread type at least 19 mm (3/4-inch) penetration of plywood. 2. 16 mm (5/8-inch) minimum head diameter. 3. Nails with flat cap at least 24 mm (15/16-inch) across. /E. Nails for attaching built-up Flashing to Masonry: 1. Hardened steel nails through metal discs at least 25 m

47、m (one inch in diameter). 2. One-piece nails with an integral flat cap at least 24 mm (15/16-inch) across. / /F. Nails for Securing Venting Base Sheet to Insulating Concrete: 1. Self clinching type of galvanized steel having an integral flat cap at least 25 mm (one-inch) across. 2. Holding power of

48、nails not less than 27 Kg (60 pounds) when pulled from approximate 400 Kg/m (26 pound per cubic foot) dense concrete. / /G. Nails for Securing Base Sheet to Structural Wood Fiber Decks: 1. Self clinching type having an integral flat cap not less than 25 mm (one inch) across. Provided by IHSNot for R

49、esaleNo reproduction or networking permitted without license from IHS-,-,-03-09M 07 51 00 - 9 2. Holding power of nails not less than 18 Kg (40 pounds) per fastener. / /H. Nails for Securing Base Sheet to Poured Gypsum Roof Deck: 1. Special shaped nail providing diverging or hooking point. 2. Flat cap not less