Normal Length For Roofing Nails

Wood shingles nail type minimum length 18 straight split 3d box 1 1 4 18 and 24 handsplit and resawn 4d box 1 1 2.

Normal length for roofing nails.

Standard lengths are between 1 and 2 inches 2 and 5 centimeters but they are also available at lengths of up to 6 inches 15 centimeters. Roofing nails should be long enough to penetrate the roofing material and go 19 mm into osb solid wood plywood or non veneer wood decking or through thickness of decking whichever is less. Nails that are longer than six inches are called pikes and they are seldom used on roofs. If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice.

Screw shank nails are twisted and have sharp diamond tips and they are used to securely fasten wood roofs. Most of the nails do not come through the plywood. If you need bigger nails including pikes you may need to place a special order at the hardware store. The nails used are 1 2 3 4.

Will the 1 1 4 nails rust since they will be below the plywood. The most commonly used roofing nails range from one to two inches in length. Fasteners must be driven flush with the surface of the shingle. Fasteners should be long enough to penetrate at least 3 4 19mm into wood decks or just through the plywood decks.

For dimensional shingles being installed over a layer of existing dimensional shingles you should always use a 1 1 2 inch roofing nail. It is outside in a yard. The roof structure is completely open and can be seen from underneath. Seems 1 1 4 nails are recommended.

The length of the nail is the shank and the shank can also vary.