2012 Irc Roof Sheathing Thickness

Never attach roof sheathing with staples.

2012 irc roof sheathing thickness.

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 typical thickness range for sheathing is 3 8 to 3 4 inch. Head astm f 1667 of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 mm into the roof sheathing.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. 8d ring shank nails should be used instead. Where the roof sheathing is. Thickness or mineral surface roll roofing weighing a minimum of 77 pounds per 100 square feet 4 kg m 2.

Fasteners for asphalt shingles shall be galvanized stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 2 67 mm shank with a minimum 3 8 inch diameter 9 5 mm head of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 1 mm into the roof sheathing. 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. Cap flashing shall be. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

January 2012 code for residential buildings that creates minimum regulations for one and two family dwellings of three stories or less. Sheathing should be a minimum of 19 32 inch thick. Where the roof sheathing is less than 3 4 inch 19 1 mm thick the nails. International residential code 2012 irc 2012.