077200 roof accessories.pdf

Bay Pines VA Healthcare System Eye Treatment Center and VA Project Number 516-326 and 516-334 Ambulatory Surgery Center Construction Documents-3 July 7, 2009

07 72 00 - 1

SECTION 07 72 00

ROOF ACCESSORIES

PART 1 - GENERAL

1.1 DESCRIPTION

This section specifies extruded aluminum copings.

1.2 RELATED WORK

A. Color and texture of finish: Section 09 06 00, SCHEDULE FOR FINISHES

B. Sealant material and installation: Section 07 92 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 specified.

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. 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 manufacturer's identifying label.

C. Shop Drawings: Each item specified showing design, details of construction, installation and fastenings.

D. Manufacturer's Literature and Data: Each item specified.

E. Certificates: Stating that aluminum has been given specified thickness of anodizing.

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 Material (ASTM):

B209/209M-02............Aluminum and Aluminum Alloy-Sheet and Plate

B221/221M-02............Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes

07 72 00 - 2

D1187-97................Asphalt-Base Emulsions for Use as Protective

Coatings for Metal

C. National Association of Architectural Metal Manufacturers (NAAMM):

AMP 500 Series..........Metal Finishes Manual

D. American Architectural Manufacturers Association (AAMA):

605-98..................High Performance Organic Coatings on

Architectural Extrusions and Panels.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Aluminum, Extruded: ASTM B221/B221M.

B. Aluminum Sheet: ASTM B209/B209M.

C. Asphalt Coating: ASTM D 1187, Type I, quick setting.

2.2 EXTRUDED ALUMINUM COPING

A. Fabricate of aluminum not less than 0.125 inch thick.

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 piece assemblies with not less than 300 mm (12 inch) leg lengths.

E. Provide 100 mm (four inch) wide 0.8 mm (0.032 inch) thick watertight joint covers.

F. Provide anchor gutter bar of 0.8 mm (0.032 inch) thick aluminum with anchor holes formed for underside of joint.

G. Provide concealed guttered splice plate of 0.8 mm (0.032 inch) thick aluminum with butyl or other resilient seal strips anchored to splice plate for underside of joint. Use galvanized steel anchor plate providing compression spring anchoring of coping cover.

H. Finish: Anodized.

2.3 FINISH

A. Aluminum, Mill Finish: AA-MIX, as fabricated.

C. Aluminum Colored Finish: AA-C22A42 (anodized or AA0C22A44

(electrolytically deposited metallic compound) medium matte, integrally colored coating, Class 1, Architectural, 0.7 mils thick to match aluminum storefront.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install roof accessories where shown.

B. Secure with fasteners in accordance with manufacture's printed installation instructions and approved shop drawings unless shown otherwise.

07 72 00 - 3

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 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. 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. When snap-on system is used insure front and back edges are locked in place.

3.2 PROTECTION OF ALUMINUM

A. Provide protection for aluminum against galvanic action wherever dissimilar materials are in contact, by painting the contact surfaces 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, that may become repeatedly wet, with two coats of asphalt coating.

3.3 PROTECTION

Protect roof accessories from damage during installation and after completion of the work from subsequent construction.

- - - E N D - - -