Roof Sheathing Code Requirements

Sheathing thickness is greater than 15 32 inches roof sheathing is required to be fastened with astm f1667 rsrs 03 2 0 131 nails or astm f1667 rsrs 04 3 0 120 nails.

Roof sheathing code requirements.

Solid sheathing is required in areas where the average daily temperature in january is 25 f 4 c or less or where there is a possibility of ice. The rsrs designation indicates the fastener is a ring shank roof sheathing nail. The typical thickness range for sheathing is 3 8 to 3 4 inch. Asphalt shingles shall be fastened to solidly sheathed decks.

2304 7 floor and roof sheathing. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures.

8d ring shank nails should be used instead. Jump to full code chapter. Never attach roof sheathing with staples. Table r803 2 3 1 specifies the maximum fastener.

Asphalt shingles shall be fastened to solidly sheathed decks. Building codes for roofing reqiure a minimum 1x4 and the spaces between battens should not exceed 3 1 2 inches figure 2 46 wood shingles over spaced sheathing and figure 2 47 wood shakes installed over wood sheathing are illustrated below.