Roof Sheathing Code Requirements

The typical thickness range for sheathing is 3 8 to 3 4 inch.

Roof sheathing code requirements.

Jump to full code chapter. 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. Sheathing should be a minimum of 19 32 inch thick. The rsrs designation indicates the fastener is a ring shank roof sheathing nail.

2014 fbc building 5 th edition 23 wood 2304 general construction requirements 2304 7 floor and roof sheathing. 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. Asphalt shingles shall be fastened to solidly sheathed decks. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Table r803 2 3 1 specifies the maximum fastener. 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. Structural floor sheathing and structural roof sheathing shall comply with sections 2304 7 1 and 2304 7 2 respectively. 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.

Never attach roof sheathing with staples. 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.