Roofing Nail Size Requirements

It is outside in a yard.

Roofing nail size requirements.

Existing roof is a 3 tab shingle with 1 2 plywood. The nails used are 1 2 3 4. More than 1 layer of roofing not recommended over 3 8 sheathing. 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.

If you need bigger nails including pikes you may need to place a special order at the hardware store. 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. Nails are required to be galvanized steel stainless steel aluminum or. There are different kinds of roofing nails made of different materials and in various sizes.

When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. Nails of the proper length should penetrate three fourths of an inch into the roof deck. The most commonly used roofing nails range from one to two inches in length. The roof structure is completely open and can be seen from underneath.

Nails that are longer than six inches are called pikes and they are seldom used on roofs. What size roofing nail. 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. 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 more common roof thickness is 3 4 inch decking. 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. The one to two inch roofing nails are suitable for most types of roof shingles. Most of the nails do not come through the plywood.

Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks. Nails should be corrosion resistant.