VA 07 72 00-2011 ROOF ACCESSORIES.pdf

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1、10-11 07 72 00 - 1 SECTION 07 72 00 ROOF ACCESSORIES SPEC WRITER NOTE: 1. Delete between /_/ if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. 2. Include standard manufactured components installed on and in roofing other

2、than mechanical, electrical, and structural items. PART 1 - GENERAL 1.1 DESCRIPTION This section specifies copings, gravel stops, fascias, and expansion joints. 1.2 RELATED WORK A. Color and texture of finish: Section 09 06 00, SCHEDULE FOR FINISHES B. Sealant material and installation: Section 07 9

3、2 00, JOINT SEALANTS. C. General insulation: Section 07 21 13, THERMAL INSULATION D. Rigid insulations for roofing: Section 07 22 00, ROOF AND DECK INSULATION 1.3 QUALITY CONTROL A. All roof accessories shall be the products of manufacturers regularly engaged in producing the kinds of products speci

4、fied. B. Each accessory type shall be the same and be made by the same manufacturer. C. Each accessory shall be completely assembled to the greatest extent possible before delivery to the site. 1.4 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES. B.

5、 Samples: Representative sample panel of color anodized aluminum not less than 100 mm X 100 mm (four by four inches), except extrusions shall be a width not less than section to be used. Sample shall show coating with integral color and texture and shall include manufacturers identifying label. C. S

6、hop Drawings: Each item specified showing design, details of construction, installation and fastenings. D. Manufacturers Literature and Data: Each item specified. E. Certificates: Stating that aluminum has been given specified thickness of anodizing. Provided by IHSNot for ResaleNo reproduction or n

7、etworking permitted without license from IHS-,-,-10-11 07 72 00 - 2 1.5 APPLICABLE PUBLICATIONS A. The publications listed below form a part of this specification to the extend referenced. The publications are referenced in the text by the basic designation only. B. American Society for Testing and

8、Material (ASTM): B209/209M-07 . Aluminum and Aluminum Alloy-Sheet and Plate B221/221M-08 . Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes C612-10 Mineral Fiber Block and Board Thermal Insulation D1187-97 (R2002) . Asphalt-Base Emulsions for Use as Protective Coatings for Metal C. Nation

9、al Association of Architectural Metal Manufacturers (NAAMM): AMP 500-06 . Metal Finishes Manual D. American Architectural Manufacturers Association (AAMA): 2605-11 High Performance Organic Coatings on Architectural Extrusions and Panels. PART 2 - PRODUCTS SPEC WRITER NOTE: Update materials requireme

10、nts to agree with applicable requirements (types, grades, classes) specified in the referenced Applicable Publications. 2.1 MATERIALS A. Aluminum, Extruded: ASTM B221/B221M. B. Aluminum Sheet: ASTM B209/B209M. C. Galvanized Sheet Steel: ASTM A526/A526M; G-90 coating. D. Insulation: ASTM C612, Class

11、1 or 2. E. Asphalt Coating: ASTM D 1187, Type I, quick setting. SPEC WRITER NOTE: 1. Detail coping system; select thickness of metal for wall thickness span. Select anchoring system to conform to details. 2. Specify Category 5 FM rated coping where wind uplift is a critical factor. 2.2 COPINGS A. Fa

12、bricate of aluminum not less than / 1.6 / 2 / 3.2 /-mm (0.063 / 0.08 / 0.125 / inch thick; 16 oz copper / 0.5 mm (0.018 inch thick stainless steel)/ B. Turn outer edges down each face of wall as shown. C. Maximum lengths of 3000 mm (10 feet). D. Shop fabricate external and internal corners as one pi

13、ece assemblies with not less than 300 mm (12 inch) leg lengths. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 72 00 - 3 E. /Copings shall be Category 5 FM rated/ F. Provide 100 mm (four inch) wide 0.8 mm (0.032 inch) thick watertight joint

14、 covers. G. Provide anchor gutter bar of 0.8 mm (0.032 inch) thick with anchor holes formed for underside of joint. H. Provide concealed guttered splice plate of 0.8 mm (0.032 inch) thick with butyl or other resilient seal strips anchored to splice plate for underside of joint. Use galvanized steel

15、anchor plate providing compression spring anchoring of coping cover. I. Finish: / Anodized / Fluorocarbon / as specified. SPEC WRITER NOTE: Detail gravel stop and fascias. If roof is ballasted extend vertical curb to be above paver/gravel surface. Where protective membrane insulation or 1-90 design

16、occurs use system that clamps insulation or pavers down. Provide scuppers at water line for overflow protection when stop exceeds one inch in height above roof line. 2.3 EXTRUDED ALUMINUM GRAVEL STOPS AND FASCIAS A. Fabricate of aluminum not less than 2 mm (0.078 inch) thick. B. Turn fascia down fac

17、e of wall and up above roof as shown. C. Maximum lengths of 3000 mm (10-feet). D. Shop fabricate external and internal corners as one piece assemblies with not less than 300 mm (12 inch) leg lengths. E. Provide 100 mm (four inch) wide 2 mm (0.078 inch) thick watertight joint covers with 150 mm (six

18、inch) wide 0.8 mm (0.030 inch) thick underside joint flashing. SPEC WRITER NOTE: Use not less than 100 mm (4 inch) high cant above roof. 2.4 EXTRUDED ALUMINUM FASCIA-CANT SYSTEM A. The fascia-cant system consists of three pieces, an extruded aluminum fascia, a galvanized steel cant, and an aluminum

19、compression clamp. B. Furnish in stock lengths of not more than 3000 mm (10 feet) long. C. Form fascia from not less than 2 mm (0.070 inch) thick aluminum. Provide four inch wide 0.8 mm (0.032-inch) thick concealed sheet aluminum joint cover plates in back of fascia. D. Form cant strip from galvaniz

20、ed steel not less than 0.8 mm (0.0299 inch) thick, to profile shown and design to hold lower edge of the fascia. E. Form compression clamp of not less than 0.8 mm (0.032 inch) thick aluminum designed to hold the top edge of the fascia and the built-up flashing. Provided by IHSNot for ResaleNo reprod

21、uction or networking permitted without license from IHS-,-,-10-11 07 72 00 - 4 F. Internal and external corners: 1. Factory fabricate and fully weld mitered joints. 2. Furnish corner sections in / manufacturers standard sizes / sizes shown / with not less than 300 mm (12 inch) leg lengths. / SPEC WR

22、ITER NOTE: Use sump assembly when downspouts are used to drain roof not having roof drains. G. Factory fabricated fascia sump assemblies. 1. Fabricate sump assemblies with stainless steel cores and extruded aluminum cover to match fascia-cant. 2. Provide stainless steel outlet, tube sized to suit do

23、wnspout and solder to core to make watertight. 3. Furnish sump assembly in 500 mm (20 inch) minimum lengths. SPEC WRITER NOTE: Use scuppers for overflow safety if only one roof drain occurs. H. Factory fabricated scupper assemblies: 1. Fabricate scupper assembly with extended plates to match fascia-

24、cant in 500 mm (20 inch) minimum lengths. 2. Extend outlet opening not less than 50 mm (two inches) with drip edge. 3. Fabricate with stainless steel cores or sleeve to drain water from toe of cant and flash in to built-up roofing with 100 mm (4 inch) wide flange. I. Finish on aluminum: / anodized /

25、 fluorocarbon / as specified. SPEC WRITER NOTE: Insure expansion joints are installed on curbs providing not less than 200 mm (8 inch) high base flashing. Detail and show system; allow option for use of both system. 2.5 EXTRUDED ALUMINUM ROOF EXPANSION JOINT COVERS A. Fabricate in 3000 mm (10 foot)

26、lengths with fastener openings slotting for expansion not over 600 mm (24 inch) centers. B. Provide four-way expansion, for joint widths shown. C. Mill finish on aluminum. D. Form waterstop or moisture seals of continuous sheets of neoprene, not less than 0.8 mm (0.032 inch) thick. E. Fabricate corn

27、ers as one piece assembly with mitered and welded joint and least dimension legs not less than 300 mm (12 inches) long. F. Factory fabricate end caps and transitions to insure waterproof assembly. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11

28、 07 72 00 - 5 G. Three piece assembly: 1. Roof expansion joint cover system consists of an extruded aluminum cover, extruded frame or curb vertical section, galvanized steel cant, and aluminum compression clamp counter flashing, complete with moisture seals. Form cover and vertical section from extr

29、uded aluminum, 2 mm (0.080 inch) minimum thickness with spring stainless steel tension or pivot bar. 2. Form cant from galvanized steel not less than 0.8 (0.029 inch) thick formed to profile shown. 3. Form splice plates of not less than 0.8 mm (0.032 inch) thick aluminum sheet. 4. Form counter flash

30、ing member of 1.3 mm (0.050 inch) thick sheet aluminum, secured with screws to the top edge of the vertical section and providing compression clamp over base flashing. 5. Provide compression gasket separating cover from curb bearing. H. Two piece assembly: 1. Roof expansion joint system consists of

31、an extruded aluminum cover combination extruded aluminum frame or curb with integral adjustable counter flashing flange, and moisture seals. 2. Form cover from extruded aluminum 2 mm (0.078 inch) minimum thickness. 3. Form cover anchor system of stainless steel pivot bar. 4. Form frame assembly of n

32、ot less than 2 mm (0.076 inch) aluminum except for flashing portion. 5. Provide compression gasket separating cover from curb at bearing. SPEC WRITER NOTE: EDIT FOLLOWING. If more than one finish is used on project, proceed finish spec with “Finish for (list items);“ Use mill finish for aluminum unl

33、ess specified otherwise under item. 2.6 FINISH A. In accordance with NAAMM Amp 500-505. B. Aluminum, Mill Finish: AA-MIX, as fabricated. C. Aluminum, Clear Finish: AA-C22A41 medium matte, clear anodic coating, / Class 1, Architectural, 0.7 mils thick. / Class II, Architectural, 0.4 mils thick. / D.

34、Aluminum Colored Finish: AA-C22A42 (anodized or AA0C22A44 (electrolytically deposited metallic compound) medium matte, integrally colored coating, / Class 1, Architectural, 0.7 mils thick /. Class II, Architectural, 0.4 mils thick. Dyes will not be accepted. E. Fluorocarbon Finish: AAMA 2605.2 high

35、performance organic coating. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 72 00 - 6 SPEC WRITER NOTE: Show anchorage location for items specified on drawings. PART 3 - EXECUTION 3.1 INSTALLATION A. Install roof accessories where shown. B.

36、 Secure with fasteners in accordance with manufactures printed installation instructions and approved shop drawings unless shown otherwise. C. Coordinate to install insulation where shown; see Section 07 21 13, THERMAL INSULATION and Section 07 22 00, ROOF AND DECK INSULATION. D. Comply with section

37、 07 92 00, JOINT SEALANTS to install sealants where manufactures installation instructions require sealant. E. Coordinate with roofing work for installation of items in sequence to prevent water infiltration. F. Gravel Stops and Fascias: 1. Install gravel stops and fascia with butt joints with appro

38、ximately 6 mm (1/4 inch) space for expansion. 2. Over each joint provide cover plates of sheet aluminum, complete with concealed sheet aluminum flashing, centered under each joint. 3. Lap cover plates and concealed flashing over the gravel stop and fascia not less than four inches. 4. Extend conceal

39、ed flashing over built-up roofing, embed in roof cement and turn down over face of blocking at roof edge. G. Aluminum Coping: 1. Install sections of coping with approximately 6 mm (1/4-inch) space between ends of sections. 2. Center joint gutter bar and covers at joints and securely lock in place. 3

40、. When snap-on system is used insure front and back edges are locked in place. H. Fascia-Cant System: 1. Install galvanized steel cant; coordinate with roofing work and after completion of roofing work install extruded aluminum fascia, concealed joint cover plate, and aluminum compression clamp, whe

41、re shown. 2. Install system to allow for expansion and contraction with 6 mm (1/4 inch) space between extruded aluminum members and galvanized steel cant as required by manufacturer of system. 3. Offset joints in extruded aluminum members from galvanized steel cant joints. Provided by IHSNot for Res

42、aleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 72 00 - 7 I. Expansion Joint Covers: 1. Install to terminate base flashing 200 mm (8 inches) above roof. 2. Install moisture seals to drain water to outlets that do not permit water to enter buildings construction. 3. U

43、se stainless steel screws when exposed. 4. Three piece assembly: a. Install curb section with screws to wood blocking, allowing 6 mm (1/4 inch) at butt joints between sections with splice plate at joint. b. Install cant to wood blocking by nailing along horizontal flange every 150 mm (6 inches), wit

44、h galvanized roofing nails 25 mm (one inch) long. c. After completion of base flashing install cap flashing and compression clamp and fasten to the curb or metal cant with stainless steel self-tapping screws with neoprene washers under head spaced approximately 450 mm (18 inches) on center. d. Insta

45、ll expansion joint cover with a 6 mm (1/4 inch) wide end joints. e. Install over end joint a cover plate complete with concealed aluminum flashing, centered under each joint. Fabricate flashing to lap cover not less than four inches. 5. Two piece assembly: a. Install curb section with screws allowin

46、g 6 mm (1/4 inch) space at end joints with splice plate at joint. b. After completion of base flashing bend down cap flashing flange and secure to blocking with screws. c. Install expansion joint cover with 6 mm (1/4 inch) wide space at end joints and tension bars at 600 mm (24 inches) on center. d.

47、 Install cover plates with formed aluminum flashing concealed and centered on joint. Flashing to lap cover not less than 100 mm (4 inches). 3.2 PROTECTION OF ALUMINUM A. Provide protection for aluminum against galvanic action wherever dissimilar materials are in contact, by painting the contact surf

48、aces of the dissimilar material with two coats of asphalt coating (complete coverage), or by separating the contact surfaces with a preformed neoprene tape having pressure sensitive adhesive coating on side. B. Paint aluminum in contact with wood, concrete and masonry, or other absorptive materials,

49、 that may become repeatedly wet, with two coats of asphalt coating. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 07 72 00 - 8 3.3 ADJUSTING Adjust expansion joints to close tightly and be watertight; insuring maximum allowance for building movement. 3.4 PROTECTION Protect roof accessories from damage dur