Minimum Roofing Nail Length

A roofing nail should have a minimum nominal shank diameter of 12 gauge 2 67 mm and a minimum head diameter of 9 5 mm.

Minimum roofing nail length.

A large nail head and heavier shank gauge provide greater holding power. If the hardiplank is being installed on a building in a humid climate or near the ocean or any large body of water the stainless steel nails are the first choice. When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure.

Wood shakes minimum 3 4 sheathing wood shakes nail type minimum length 18 straight split 5d box 1 3 4 18 and 24 handsplit and resawn 6d box 2. 0 113 inch nominal shank diameter. Nails of the proper length should penetrate three fourths of an inch into the roof deck. Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks.

For example galvanized by various processes aluminium copper or stainless steel. For all owens corning shingles roofing nails should penetrate into the wood deck by a minimum of inch or completely through the roof deck by a minimum of 1 8 inch. Ring diameter a minimum of 0 010 inch over shank diameter. The international building code requires that roofing nails have a minimum 12 gauge shank and a 3 8 inch diameter head.

Pick out stainless steel or hot dipped galvanized nails size 6d 1 1 2 inch long siding nails and 2 inch long siding nails in the quantity you need for your project. Ring shank to extend a minimum of 1 1 2 inches from the tip of the nail. Galvanized steel aluminum or copper roofing nails minimum 12 gage 0 105 in 3 mm shank with minimum 3 8 in 10 mm diameter head astm f 1667 of a length to penetrate through the roofing materials and a minimum of in 19 mm into the roof sheathing. A minimum 0 280 inch full round head diameter.

More than 1 layer of roofing not recommended over 3 8 sheathing. The more common roof thickness is 3 4 inch decking. Nails with round heads and the following minimum dimensions. Minimum 2 3 8 inch nail length.

All nails must be corrosion resistant.