Asphalt Shingles

Asphalt Shingles
SECTION 07311
ASPHALT SHINGLES
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.
SUMMARY
A.
This Section includes the following:
A.
B.
B.
Related Sections include the following:
A.
B.
1.3
Asphalt shingles.
Self-adhering sheet underlayment.
Division 6 Section “Sheathing” for roof deck wood structural panels.
Division 7 Section "Sheet Metal Flashing and Trim" for metal roof penetration flashings
and counterflashings not part of this Section.
DEFINITIONS
A.
1.4
Roofing Terminology: Refer to 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.
SUBMITTALS
A.
Product Data: For each type of product indicated.
B.
Samples for Initial Selection: For each type of asphalt shingle, ridge and hip cap shingles ridge
vent and exposed valley lining indicated.
A.
C.
Include similar Samples of trim and accessories involving color selection.
Samples for Verification: For the following products, of sizes indicated, to verify color selected.
A.
B.
C.
D.
Asphalt Shingle: Full-size asphalt shingle strip.
Ridge and Hip Cap Shingles: Full-size ridge and hip cap asphalt shingle.
Ridge Vent: 12-inch- (300-mm-) long Sample.
Exposed Valley Lining: 12 inches (300 mm) square.
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E.
Self-Adhering Underlayment: 12 inches (300 mm) square.
D.
Qualification Data: For Installer, including certificate signed by asphalt shingle manufacturer
stating that Installer is approved, authorized, or licensed to install roofing system indicated.
E.
Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified
testing agency or by manufacturer and witnessed by a qualified testing agency, for asphalt shingles.
F.
Maintenance Data: For asphalt shingles to include in maintenance manuals.
G.
Warranties: Special warranties specified in this Section.
1.5
QUALITY ASSURANCE
A.
Source Limitations: Obtain specified products as required from warranting manufacturer as
outlined in the specifications.
B.
Fire-Test-Response Characteristics: Provide asphalt shingle and related roofing materials with
the fire-test-response characteristics indicated, as determined by testing identical products per
test method below by UL or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify materials with appropriate markings of applicable testing and inspecting agency.
A.
Exterior Fire-Test Exposure: Class A; ASTM E 108 or UL 790, for application and roof
slopes indicated.
C.
Pre-installation Conference: Conduct conference at Project site to comply with requirements in
Division 1 Section "Project Management and Coordination."
D.
MANUFACTURER’S INSPECTIONS
A. When the project is in progress, the base sheet system manufacturer will provide the following:
1. Keep the Owner informed as to the progress and quality of the work as observed.
2. Provide daily job site inspections during installation of the shingle roof system. Provide daily
emailed progress reports to the Owner outlining the day’s roof renovation progress.
3. Report to the Owner in writing any failure or refusal of the Contractor to correct unacceptable
practices called to the Contractor’s attention.
4. Confirm after completion that manufacturer has observed no applications procedures in conflict
with the specifications other than those that may have been previously reported and corrected.
1.6
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.
A.
Handle, store, and place roofing materials in a manner to avoid significant or permanent
damage to roof deck or structural supporting members.
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B.
1.7
Protect unused under-layment from weather, sunlight, and moisture when left overnight or when
roofing work is not in progress.
PROJECT CONDITIONS
A.
Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit asphalt shingle roofing to be performed according to manufacturer's written instructions and warranty requirements.
A.
1.8
Install self-adhering sheet under-layment within the range of ambient and substrate temperatures recommended by manufacturer.
WARRANTY
A.
Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace asphalt shingles that fail in materials or workmanship within specified warranty period.
Materials failures include manufacturing defects and failure of asphalt shingles to self-seal after
a reasonable time.
A.
B.
C.
B.
Special Project Warranty: Roofing Installer's warranty, on warranty form at end of this Section,
signed by roofing Installer, covering 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 the following warranty period:
A.
1.9
Material Warranty Period: 40 years from date of Substantial Completion, prorated, with
first 5 years non-prorated.
Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by
wind speeds up to 85 mph for 10 years from date of Substantial Completion.
Algae-Discoloration Warranty Period: Asphalt shingles will not discolor 10 years from
date of Substantial Completion.
Warranty Period: two years from date of Substantial Completion.
EXTRA MATERIALS
A.
Furnish extra materials described below that match products installed and that are packaged
with protective covering for storage and identified with labels describing contents.
A.
Asphalt Shingles: 100 sq. ft of each type, in unbroken bundles.
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
In other Part 2 articles where titles below introduce lists, the following requirements apply to
product selection:
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A.
2.2
Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, products specified.
GLASS-FIBER-REINFORCED ASPHALT SHINGLES
A.
B.
2.3
Laminated-Strip Asphalt Shingles: ASTM D 3462, laminated, multi-ply overlay construction,
glass-fiber reinforced, mineral-granule surfaced, and self-sealing.
A.
Available Products:
a.
GAF Materials Corporation - Timber-line
b.
Certainteed
c.
Owens Corning
B.
C.
D.
E.
Butt Edge: Straight cut.
Strip Size: Manufacturer's standard.
Algae Resistance: Granules treated to resist algae discoloration.
Color and Blends: from manufacturer’s standard color samples.
Hip and Ridge Shingles: Manufacturer's standard units to match asphalt shingles.
UNDERLAYMENT MATERIALS
A.
Self-Adhering Sheet Underlayment, Granular Surfaced: ASTM D 1970, minimum of 85mil-thick sheet; glass-fiber-mat-reinforced, SBS-modified asphalt; mineral-granule surfaced; with release paper backing; cold applied. Provide primer for adjoining concrete or
masonry surfaces to receive underlayment.
B.
2.4
As recommended by:
a.
The Garland Company, Inc. – HPR Aquablock.
RIDGE VENTS
A.
Flexible Ridge Vent: Manufacturer's standard compression-resisting, three-dimensional opennylon or polyester-mat filter bonded to a nonwoven, nonwicking geotextile fabric cover.
A.
Available Products:
a.
b.
c.
B.
C.
D.
2.5
GAF Materials Corporation; Cobra.
Certainteed
Owens Corning
Minimum Net Free Area: 4” min.
Width: Length of ridge.
Thickness: 1-1/2” min. thickness.
ACCESSORIES
A.
Asphalt Roofing Cement: ASTM D 4586, Type II, asbestos free.
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B.
Roofing Nails: ASTM F 1667; aluminum, stainless-steel, copper, or hot-dip galvanized steel
wire shingle nails, minimum 0.120-inch- (3-mm-) 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 (3 mm) through OSB or plywood
sheathing.
A.
2.6
Where nails are in contact with metal flashing, use nails made from same metal as flashing.
METAL FLASHING AND TRIM
A.
Sheet Metal Flashing and Trim: Comply with requirements in Division 7 Section "Sheet Metal
Flashing and Trim."
A.
B.
Sheet Metal: aluminum per Section 07600.
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 item.
A.
B.
C.
D.
Step Flashings: Fabricate with a headlap of 2 inches (50 mm) and a minimum extension
of 5 inches (125 mm) over the underlying asphalt shingle and up the vertical surface.
Cricket Flashings: Fabricate with concealed flange extending a minimum 24 inches (600
mm) beneath upslope asphalt shingles and 6 inches (150 mm) above the roof plane.
Open Valley Flashings: Fabricate in lengths not exceeding [10 feet (3 m)] with 1-inch(25-mm-) high inverted-V profile at center of valley and equal flange widths of 10 inches
(250 mm).
Drip Edges: Fabricate in lengths not exceeding [10 feet (3 m)] with 2-inch (50-mm) roof
deck flange and 1-1/2-inch (38-mm) fascia flange with 3/8-inch (9.6-mm) drip at lower
edge.
PART 3 - EXECUTION
3.1
EXAMINATION
A.
B.
Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of 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.
Proceed with installation only after unsatisfactory conditions have been corrected.
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3.2
UNDERLAYMENT INSTALLATION
A.
3.3
Adhering Sheet Underlayment: Install self-adhering sheet underlayment, wrinkle free, on entire
roof deck. Comply with low-temperature installation restrictions of underlayment manufacturer if applicable. Install at locations indicated on Drawings, lapped in direction to shed water.
Lap sides not less than 3-1/2 inches (89 mm). Lap ends not less than 6 inches (150 mm) staggered 24 inches (600 mm) between courses. Roll laps with roller. Cover underlayment within
seven days.
METAL FLASHING INSTALLATION
A.
General: Install metal flashings and other sheet metal to comply with requirements in Division 7 Section "Sheet Metal Flashing and Trim."
A.
Install metal flashings according to recommendations in ARMA's "Residential Asphalt
Roofing Manual" and asphalt shingle recommendations in NRCA's "The NRCA Roofing
and Waterproofing Manual."
B.
Apron Flashings: Extend lower flange over and beyond each side of downslope asphalt shingles and up the vertical surface.
C.
Step Flashings: Install with a headlap of 2 inches and extend over the underlying asphalt shingle and up the vertical surface. Fasten to roof deck only.
D.
Cricket Flashings: Install against the roof-penetrating element extending concealed flange beneath upslope asphalt shingles and beyond each side.
E.
Open Valley Flashings: Install centrally in valleys, lapping ends at least 8 inches in direction to
shed water. Fasten upper end of each length to roof deck beneath overlap.
A.
Secure hemmed flange edges into metal cleats spaced 2 inches apart and fastened to roof
deck.
F.
Rake Drip Edges: Install rake drip edge flashings over underlayment and fasten to roof deck.
G.
Eave Drip Edges: Install eave drip edge flashings below underlayment and fasten to roof
sheathing.
H.
Pipe Flashings: Form flashing around pipe penetrations and asphalt shingles. Fasten and seal to
asphalt shingles as recommended by manufacturer.
3.4
ASPHALT SHINGLE INSTALLATION
A.
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."
B.
Install starter strip along lowest roof edge, consisting of an asphalt shingle strip with tabs removed with self-sealing strip face up at roof edge.
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A.
B.
Extend asphalt shingles 1/2 inch over fascia at eaves and rakes.
Install starter strip along rake edge.
C.
Install first and remaining courses of asphalt shingles stair-stepping diagonally across roof deck
with manufacturer's recommended offset pattern at succeeding courses, maintaining uniform
exposure.
D.
Fasten asphalt shingle strips with a minimum of five roofing nails located according to manufacturer's written instructions.
1.
When ambient temperature during installation is below 50 deg F, seal asphalt shingles
with asphalt roofing cement spots.
E.
Ridge Vents: Install continuous ridge vents over asphalt shingles according to manufacturer's
written instructions. Fasten with roofing nails of sufficient length to penetrate sheathing.
F.
Ridge and Hip Cap Shingles: Maintain same exposure of cap shingles as roofing shingle exposure. Lap cap shingles at ridges to shed water away from direction of prevailing winds. Fasten
with roofing nails of sufficient length to penetrate sheathing.
1.
Fasten ridge cap asphalt shingles to cover ridge vent without obstructing airflow.
END OF SECTION
SECTION 07311 – ASPHALT SHINGLES
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