Asphalt ShinglesScott Tower Maint.doc

SECTION 07311

ASPHALT SHINGLES

PART 1 - GENERAL

1.1

RELATED DOCUMENTS

A.

Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2

SUMMARY

A.

This Section includes asphalt shingles for steep roofs.

B.

Related Sections: The following Sections contain requirements that relate to this Section:

1.

Division 6 Section "Rough Carpentry" for miscellaneous rotted wood replacement.

1.3

SUBMITTALS

A.

General: Submit each item in this Article according to the Conditions of the Contract and Division 1 Specification Sections.

B.

Product data for each type of product specified, including details of construction relative to materials, dimensions of individual components, profiles, textures, and colors.

C.

Samples for initial selection in the form of manufacturer's sample finishes showing the full range of colors and profiles available for each type of asphalt shingle indicated.

1.4

WIND RESISTANCE

A.

Wind-Resistance-Test Characteristics: Asphalt shingles shall be wind rated at 90 mph. Provide products identical to those tested according to ASTM D 3161 or UL 997 and passed. Identify each bundle of asphalt shingles with appropriate markings of applicable testing and inspecting agency.

1.5

DELIVERY, STORAGE, AND HANDLING

A.

Deliver materials to Project site in manufacturer's unopened bundles or containers with labels intact.

B.

Handle and store materials at Project site to prevent water damage, staining, or other physical damage. Store rolled goods on end. Comply with manufacturer's recommendations for job-site storage, handling, and protection.

1.6

PROJECT CONDITIONS

A.

Weather Limitations: Proceed with installing asphalt shingles only when existing and forecasted weather conditions will permit work to be performed according to manufacturers' recommendations and warranty requirements, and when substrate is completely dry.

1.7

WARRANTY

A.

General Warranty: The special warranty specified in this Article shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract Documents and shall be in addition to, and run concurrent with, other warranties made by the Contractor under requirements of the Contract Documents.

1.

Warranty Period: Manufacturer's standard but not less than 50 years after date of Substantial Completion.

PART 2 - PRODUCTS

2.1

MANUFACTURERS

A.

Shingle Manufacturer/Shingle Type/Shingle Color: Subject to compliance with requirements, asphalt shingles shall be the following or approved equal:

1.

TAMKO Roofing Products, Inc./Heritage 50/Weathered Wood Color.

2.

CertainTeed Corporation/Presidential Shake/Weathered Wood Color.

3.

Owens-Corning Fiberglas Corporation/Oakridge Pro 50 Deep Shadow/Teak Color.

B.

Other Products: Subject to compliance with requirements, products that may be incorporated in the Work include, but are not limited to, the following:

1.

Waterproof Underlayment:

a.

WinterGuard; CertainTeed Corporation.

b.

Bituthene Ice and Water Shield; Grace: W.R. Grace & Co.

c.

Nordshield Ice and WaterGard; Nord Bitumi US, Inc.

d.

Polyguard Deck Guard; Polyguard Products, Inc.

e.

Moisture Guard; Tamko Asphalt Products, Inc.

2.2

ASPHALT SHINGLES

A.

Colors, Blends, and Patterns: Where alternate manufacturer/shingle type is submitted for approval, provide the following information:

1.

Provide selections from manufacturer's full range of colors, textures, and patterns for asphalt shingles of type proposed to the Contracting Officer for approval. Provide manufacturer’s literature showing that all aspects of the proposed shingles are equal to the shingle types listed in Part 2.1 above.

B.

Hip and Ridge Shingles: As supplied by the shingle manufacturer.

C. Starter strip: As supplied by the shingle manufacturer.

2.3

METAL TRIM AND FLASHING

A.

Galvanized-Steel Sheets: ASTM A 526, G 90 hot-dip galvanized steel with coating designation according to ASTM A 525, mill phosphatized for painting; 0.0217 inch thick, unless otherwise indicated.

B.

Metal Drip Edge: Factory formed or brake-formed sheet metal with at least a 2-inch roof deck flange and a 1-1/2-inch fascia flange with a 3/8-inch drip at lower edge. Metal drip edge material shall be as specified in paragraph A above.

2.4

ACCESSORIES

A.

Waterproof Underlayment: Minimum 40-mil- thick, self-adhering, polymer-modified, bituminous sheet membrane, complying with ASTM D 1970. Provide primer when recommended by underlayment manufacturer.

B.

Asphalt Plastic Cement: Non-asbestos fibrated asphalt cement, complying with ASTM D 4586.

C.

Nails: Aluminum or hot-dip galvanized steel, 0.120-inch- diameter barbed shank, sharp-pointed, conventional roofing nails with a minimum 3/8-inch- diameter head and of sufficient length to penetrate 3/4 inch into solid decking or at least 1/8 inch through plywood sheathing.

1.

Where nails are in contact with flashing, prevent galvanic action by providing nails made from the same metal as that of the flashing.

PART 3 - EXECUTION

3.1

EXAMINATION

A.

Examine substrate for compliance with requirements for substrates, installation tolerances, and other conditions affecting performance of asphalt shingles. Do not proceed with installation until unsatisfactory conditions have been corrected.

3.2

PREPARATION

A.

Clean substrates of projections and substances detrimental to application. Cover knotholes or other minor voids in substrate with sheet metal flashing secured with noncorrosive roofing nails.

B.

Coordinate installation with flashings and other adjoining work to ensure proper sequencing. Do not install roofing materials until all vent stacks and other penetrations through roof sheathing have been installed and are securely fastened against movement.

C.

Replace rotted roof sheathing and rafter ends as directed by the COR.

3.3

INSTALLATION

A.

General: Comply with manufacturer's instructions and recommendations but not less than those recommended by ARMA's "Residential Asphalt Roofing Manual" or "The NRCA Steep Roofing Manual."

1.

Fasten asphalt shingles to roof sheathing with nails.

B.

Remove metal chimney and patch hole with wood to match the surface of the rest of the roof sheathing. Attach the patch in a manner that is as strong as the rest of the roof sheathing.

C.

Waterproof Underlayment: Apply waterproof underlayment to the entire roof. Install the underlayment in accordance with the manufacturer’s recommendations.

D.

Flashing: Install metal flashing and trim as indicated and according to details and recommendations of the "Asphalt Roofing" section of "The NRCA Steep Roofing Manual" and ARMA's "Residential Asphalt Roofing Manual."

E.

Install asphalt shingles, beginning at roof's lower edge, with a starter strip of roll roofing or inverted asphalt shingles with tabs removed. Fasten asphalt shingles in the desired weather exposure pattern; use number of fasteners per shingle as recommended by manufacturer. Use vertical and horizontal chalk lines to ensure straight coursing.

1.

Cut and fit asphalt shingles at valleys, ridges, and edges to provide maximum weather protection. Provide same weather exposure at ridges as specified for roof. Lap asphalt shingles at ridges to shed water away from direction of prevailing wind.

2.

Use fasteners at ridges of sufficient length to penetrate sheathing as specified.

G.

Hip shingles: Install according to manufacturer's instructions.

END OF SECTION

07311-4

ASPHALT SHINGLES