Minimum Roofing Nail Length

0 113 inch nominal shank diameter.

Minimum roofing nail length.

A minimum 0 280 inch full round head diameter. Minimum 2 3 8 inch nail length. All nails must be corrosion resistant. However where the roof deck is less than three fourths of an inch thick the nail should be long enough to penetrate fully and extend at least one eighth of an inch through the roof deck.

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. A large nail head and heavier shank gauge provide greater holding power. For example galvanized by various processes aluminium copper or stainless steel. Nails with round heads and the following minimum dimensions.

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. When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. 16 to 20 rings per inch. 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.

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. Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks. The international building code requires that roofing nails have a minimum 12 gauge shank and a 3 8 inch diameter head. Ring diameter a minimum of 0 010 inch over shank diameter.

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 roofing nail should have a minimum nominal shank diameter of 12 gauge 2 67 mm and a minimum head diameter of 9 5 mm. Ring shank to extend a minimum of 1 1 2 inches from the tip of the nail. The length of each nail must be a minimum of 1 inches long and for roof overs atlas recommends a nail length of at least 2 inches.

More than 1 layer of roofing not recommended over 3 8 sheathing.