Shingle Roof Installation

R905.2.3 Underlayment. Unless otherwise noted, required underlayment shall conform with ASTM D 226,
Type I or Type II, or ASTM D 4869, Type I or Type II. Self-adhering polymer modified bitumen sheet shall
comply with ASTM D 1970.
R905.2.4 Asphalt Shingles. Asphalt shingles shall have self-seal strips or be interlocking, and comply with
ASTM D 225 or ASTM D 3462.
R905.2.5 Fasteners. Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or
copper roofing nails, minimum 12 gauge [0.105 inch (2.67 mm)] shank with a minimum 3/8 inch (9.5 mm)
diameter head, ASTM F 1667, of a length to penetrate through the roofing materials and a minimum of ¾ inch
(19.1 mm) into the roof sheathing. Where the roof sheathing is less than ¾ inch (19.1 mm) thick, the fasteners
shall penetrate through the sheathing. Fasteners shall comply with ASTM F 1667.
R905.2.5.1 The nail component of plastic cap nails shall meet ASTM A 641, Class I or an equal corrosion
resistance by coating, electro galvanization, mechanical galvanization, hot dipped galvanization, stainless
steel, nonferrous metal and alloys or other suitable corrosion-resistant material.