Roofing Nail Size Requirements

What size roofing nail.

Roofing nail size requirements.

When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. Nail application of asphalt strip shingles for new and recover roofing nails are required to have a minimum nominal shank diameter of 12 gauge 0 105 and a minimum head diameter of 3 8. 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. The nails used are 1 2 3 4.

The most commonly used roofing nails range from one to two inches in length. Nails are required to be galvanized steel stainless steel aluminum or. The international building code requires that roofing nails have a minimum 12 gauge shank and a 3 8 inch diameter head. Seems 1 1 4 nails are recommended.

Nails that are longer than six inches are called pikes and they are seldom used on roofs. 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. 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. There are different kinds of roofing nails made of different materials and in various sizes.

Nails of the proper length should penetrate three fourths of an inch into the roof deck. If you need bigger nails including pikes you may need to place a special order at the hardware store. It is outside in a yard. When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails.

Nails should be corrosion resistant. The roof structure is completely open and can be seen from underneath. Most of the nails do not come through the plywood. The more common roof thickness is 3 4 inch decking.

The one to two inch roofing nails are suitable for most types of roof shingles. More than 1 layer of roofing not recommended over 3 8 sheathing.