Roofing Nail Size Requirements

Most of the nails do not come through the plywood.

Roofing nail size requirements.

If you need bigger nails including pikes you may need to place a special order at the hardware store. 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. Seems 1 1 4 nails are recommended. When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails.

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. What size roofing nail. Roofing nail should have a barbed shank until the head which eliminates nail pops blow offs and roof leaks. There are different kinds of roofing nails made of different materials and in various sizes.

Nails that are longer than six inches are called pikes and they are seldom used on roofs. When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure. Existing roof is a 3 tab shingle with 1 2 plywood. The most commonly used roofing nails range from one to two inches in length.

Nails should be corrosion resistant. It is outside in a yard. Nails of the proper length should penetrate three fourths of an inch into the roof deck. 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 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. Nails are required to be galvanized steel stainless steel aluminum or. The one to two inch roofing nails are suitable for most types of roof shingles.

The roof structure is completely open and can be seen from underneath. More than 1 layer of roofing not recommended over 3 8 sheathing.