Roofing Nail Size Requirements

The more common roof thickness is 3 4 inch decking.

Roofing nail size requirements.

Seems 1 1 4 nails are recommended. 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 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. Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks.

When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. The roof structure is completely open and can be seen from underneath. The nails used are 1 2 3 4. When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure.

Nails are required to be galvanized steel stainless steel aluminum or. It is outside in a yard. 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. More than 1 layer of roofing not recommended over 3 8 sheathing.

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. The international building code requires that roofing nails have a minimum 12 gauge shank and a 3 8 inch diameter head. Existing roof is a 3 tab shingle with 1 2 plywood. There are different kinds of roofing nails made of different materials and in various sizes.

If you need bigger nails including pikes you may need to place a special order at the hardware store. Nails of the proper length should penetrate three fourths of an inch into the roof deck. The one to two inch roofing nails are suitable for most types of roof shingles. What size roofing nail.

Most of the nails do not come through the plywood. Nails that are longer than six inches are called pikes and they are seldom used on roofs.