Attachment_A_-_Asphalt_Shingles_Specs.docx

Project Number: NELTRAC900000 Project Title: Asphalt Shingles Roofing Replacement

SECTION 073113 - ASPHALT SHINGLES

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes:

1. Asphalt shingles.

2. Underlayment.

B. Related Requirements:

1. Contractor shall remove and replace all damaged or rotted wood.

2. Contractor shall remove old gutters and downspouts and replace with new gutter and downspouts. Gutters shall be 6" prefinished metal box gutter with 6" X 6" prefinished downspouts. Color for both roof and trim as selected by owner from manufacture. Standard PVDF KYNAR 500 finish.

3. Contractor shall collect all trash and debris around worksite on a daily basis and haul off all waste. Waste containers will not be provided.

1.2 DEFINITION

A. Roofing Terminology: See ASTM D 1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing Manual" for definitions of terms related to roofing work in this Section.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

B. Samples for Verification: For the following products, of sizes indicated, to verify color selected:

1. Asphalt Shingle: Full size.

2. Ridge and Hip Cap Shingles: Full size.

3. Exposed Valley Lining: 12 inches (300 mm) square.

4. Self-Adhering Underlayment: 12 inches (300 mm) square.

1.4 INFORMATIONAL SUBMITTALS

A. Qualification Data: For qualified Installer.

B. Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and witnessed by a qualified testing agency, for asphalt shingles.

C. Warranties: Sample of special warranties.

1.5 CLOSEOUT SUBMITTALS

A. Maintenance Data: For each type of asphalt shingle to include in maintenance manuals.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: Manufacturer's authorized representative who is trained and approved for installation of units required for this Project.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Store roofing materials in a dry, well-ventilated, weathertight location according to asphalt shingle manufacturer's written instructions. Store underlayment rolls on end on pallets or other raised surfaces. Do not double stack rolls.

1. Handle, store, and place roofing materials in a manner to avoid significant or permanent damage to roof deck or structural supporting members.

B. Protect unused underlayment from weather, sunlight, and moisture when left overnight or when roofing work is not in progress.

1.8 PROJECT CONDITIONS

A. Environmental Limitations: Do not deliver or install asphalt shingles until spaces are enclosed and weathertight, wet work in spaces is complete and dry, and temporary HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during the remainder of the construction period.

1. Install self-adhering sheet underlayment within the range of ambient and substrate temperatures recommended by manufacturer.

1.9 WARRANTY

A. Special Warranty: Standard form in which manufacturer agrees to repair or replace asphalt shingles that fail in materials or workmanship within specified warranty period.

1. Failures include, but are not limited to, the following:

a. Manufacturing defects.

b. Structural failures including failure of asphalt shingles to self-seal after a reasonable time.

2. Material Warranty Period: 30 years from date of Substantial Completion, prorated, with first 12 years non-prorated.

3. Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by wind speeds up to 100 mph (45 m/s) for 10 years from date of Substantial Completion.

4. Algae-Discoloration Warranty Period: Asphalt shingles will not discolor 15 years from date of Substantial Completion.

5. Workmanship Warranty Period: 12 years from date of Substantial Completion.

B. Special Project Warranty: Roofing Installer's Warranty, or warranty form at end of this Section, signed by roofing Installer, covering the Work of this Section, in which roofing Installer agrees to repair or replace components of asphalt shingle roofing that fail in materials or workmanship within specified warranty period.

1. Warranty Period: Two years from date of Substantial Completion.

PART 2 – PRODUCTS

2.1 GLASS-FIBER-REINFORCED ASPHALT SHINGLES

A. Laminated-Strip Asphalt Shingles: ASTM D 3462, laminated, multi-ply overlay construction, glass-fiber reinforced, mineral-granule surfaced, and self-sealing.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. Atlas Roofing Corporation.

b. CertainTeed Corporation.

c. Elk Premium Building Products, Inc.; an ElkCorp company.

d. Emco Building Products Corp.

e. GAF Materials Corporation.

f. IKO.

g. Malarkey Roofing Products.

h. Owens Corning.

i. PABCO Roofing Products.

j. TAMKO Roofing Products, Inc.

2. Butt Edge: Straight cut.

3. Strip Size: Manufacturer's standard.

4. Algae Resistance: Granules treated to resist algae discoloration.

5. Hail Impact Rating: Minimum Class 3 UL 2218 Impact Rating

6. Color and Blends: As selected by Architect from manufacturer's full range.

7. Strip Size: Manufacturer's standard.

8. Algae Resistance: Granules treated to resist algae discoloration.

9. Color and Blends: As selected by Architect from manufacturer's full range.

2.2 UNDERLAYMENT MATERIALS

A. Felt: ASTM D 4869 Type II, asphalt-saturated organic felts, nonperforated.

1. Manufacturers: Basis of design: GAF “Timberline HDZ Shingles”. Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. ALCO-NVC Inc.

b. Atlas Roofing Corporation.

c. Carlisle Coatings & Waterproofing, Inc.

d. CertainTeed Corporation.

e. GAF Materials Corporation.

f. Henry Company.

g. IKO.

h. Johns Manville.

i. Owens Corning.

2.3 ACCESSORIES

A. Asphalt Roofing Cement: ASTM D 4586, Type II, asbestos free.

B. Roofing Nails: ASTM F 1667; aluminum, stainless-steel, copper, or hot-dip galvanized-steel wire shingle nails, minimum 0.120-inch- diameter, barbed shank, sharp-pointed, with a minimum 3/8-inch- (9.5-mm-) diameter flat head and of sufficient length to penetrate 3/4 inch (19 mm) into solid wood decking or extend at least 1/8 inch through OSB or plywood sheathing.

1. Where nails are in contact with metal flashing, use nails made from same metal as flashing.

C. Felt Underlayment Nails: Aluminum, stainless-steel, or hot-dip galvanized-steel wire with low-profile capped heads or disc caps, 1-inch minimum diameter.

2.4 METAL FLASHING AND TRIM

A. General: Comply with requirements in Section 076200 "Sheet Metal Flashing and Trim."

1. Sheet Metal: Zinc-tin alloy-coated steel.

B. Fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, metal, and other characteristics of the item.

1. Apron Flashings: Fabricate with lower flange a minimum of 4 inches 5 inches over and 4 inches beyond each side of downslope asphalt shingles and 6 inches up the vertical surface.

2. Step Flashings: Fabricate with a headlap of 2 inches and a minimum extension of 4 inches 5 inches over the underlying asphalt shingle and up the vertical surface.

3. Cricket Backer Flashings: Fabricate with concealed flange extending a minimum of 18 inches 24 inches beneath upslope asphalt shingles and 6 inches beyond each side of chimney and 6 inches above the roof plane.

4. Open-Valley Flashings: Fabricate in lengths not exceeding 10 feet with 1- inch-high, inverted-V profile at center of valley and equal flange widths of 10 inches 12 inches.

5. Drip Edges: Fabricate in lengths not exceeding 10 feet with 2-inch roof-deck flange and 1-1/2-inch fascia flange with 3/8-inch drip at lower edge.

C. Vent Pipe Flashings: ASTM B 749, Type L51121, at least 1/16 inch (1.6 mm) thick. Provide lead sleeve sized to slip over and turn down into pipe, soldered to skirt at slope of roof, and extending at least 4 inches from pipe onto roof.

PART 3 – EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

1. Examine roof sheathing to verify that sheathing joints are supported by framing and blocking or metal clips and that installation is within flatness tolerances.

2. Verify that substrate is sound, dry, smooth, clean, sloped for drainage, and completely anchored; and that provision has been made for flashings and penetrations through asphalt shingles.

B. Prepare written report, endorsed by Installer, listing conditions detrimental to performance of the Work.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 UNDERLAYMENT INSTALLATION

A. General: Comply with underlayment manufacturer's written installation instructions applicable to products and applications indicated unless more stringent requirements apply.

C. Double-Layer Felt Underlayment: Install on roof deck parallel with and starting at the eaves. Install a 19- inch-wide starter course at eaves and completely cover with full-width second course. Install succeeding courses lapping previous courses 19 inches in shingle fashion. Lap ends a minimum of 6 inches. Stagger end laps between succeeding courses at least 72 inches. Fasten with felt underlayment nails.

1. Apply a continuous layer of asphalt roofing cement over starter course and on felt underlayment surface to be concealed by succeeding courses as each felt course is installed. Apply [over entire roof] [at locations indicated on Drawings].

2. Install felt underlayment on roof sheathing not covered by self-adhering sheet underlayment. Lap edges over self-adhering sheet underlayment not less than 3 inches in direction to shed water.

3. Terminate felt underlayment [flush] extended up not less than 4 inches against sidewalls, curbs, chimneys, and other roof projections.

4. Install fasteners at no more than 36 inch o.c.

C. Self-Adhering Sheet Underlayment: Install, wrinkle free, on roof deck. Comply with low-temperature installation restrictions of underlayment manufacturer if applicable. Install at locations indicated below, lapped in direction to shed water. Lap sides not less than 3-1/2 inches (89 mm). Lap ends not less than 6 inches staggered 24 inches between courses. Roll laps with roller. Cover underlayment within seven days.

1. Eaves: Extend from edges of eaves 36 inches beyond interior face of exterior wall.

2. Rakes: Extend from edges of rake 24 inches beyond interior face of exterior wall.

3. Valleys: Extend from lowest to highest point 18 inches on each side.

4. Hips: Extend 18 inches on each side.

5. Ridges: Extend 36 inches on each side without obstructing continuous ridge vent slot.

6. Sidewalls: Extend beyond sidewall 18 inches (450 mm) and return vertically against sidewall not less than [4 inches (100 mm).

7. Dormers, Chimneys, Skylights, and Other Roof-Penetrating Elements: Extend beyond penetrating element [18 inches (450 mm)], and return vertically against penetrating element not less than [4 inches (100 mm)] .

8. Roof Slope Transitions: Extend [18 inches on each roof slope.

3.3 ASPHALT SHINGLE INSTALLATION

A. General: Install asphalt shingles according to manufacturer's written instructions, recommendations in ARMA's "Residential Asphalt Roofing Manual," and asphalt shingle recommendations in NRCA's "The NRCA Roofing and Waterproofing Manual."

END OF SECTION 073113

Section 073113 – Asphalt Shingles