Windows, gutters, and wall finishes shall be protected from falling shingles. Coordinate with the homeowner when pushing shingles over doorways and garage doors. Removal of debris shall be completed at the finish of every workday. Use whatever means necessary to remove all nails from the premises. Evaluate the condition of the roof decking. If bad or compromised decking is observed, please contact the Code Enforcement Official at for approval of a change order. Underlayment for asphalt shingles, and mineral-surfaced roll roofing, shall conform to the applicable standards, roofing product requirements, and warranty requirements. If the roof slope is between 2:12 and 4:12, please comply with R905.2.7 if applicable. Prior to covering up the underlayment, take a several of photos to verify proper installation. Use a synthetic roofing underlayment in lieu of roofing felt. Adhere to shingle installation and warranty requirements. Install architectural shingles. Apply in accordance with the manufacturer’s installation instructions. Architectural asphalt shingles shall meet ASTM D7158 or ASTM D3161 depending on where the building the shingles are being installed or is located and what the applicable building code requires for wind resistance. As designated in Table R301.2(1) or required by code or the manufacturer’s installation requirements, an ice barrier shall be installed for asphalt shingles. The ice barrier shall be a self-adhering polymer-modified bitumen sheet product equal to Grace® Ice and Water Shield and shall use a minimum of two rows to ensure that it extends at least 36 inches from the interior wall. Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or copper roofing nails, minimum 12-gage (0.105 inch) shank with a minimum 3/8” diameter head, complying with ASTM F1667, of a length to penetrate through the roofing materials and not less than ¾” into the roof sheathing.
