How Long Should Roof Nails Be

Roofing nails range from one to six inches in length.

How long should roof nails be.

The thickness of the nail is directly proportional to its length thus the longer the nail the bigger its size. For reroofing shingle over shingle or hip and ridge application it is necessary to use minimum 35 mm long roofing nails. You should use 3 inch ring shank nails to allow at least 1 1 2 inches of truss penetration when working with lumber slats. Nails that are longer than six inches are called pikes and they are seldom used on roofs.

When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. The type of nails you ll need to use during the sheathing process depends on the roof material thickness. The more common roof thickness is 3 4 inch decking. Browse other blogs by keywords.

Use 1 nails in re roof applications when the old roof has been removed and to use 1 nails when overlaying the old roof. 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. In general roofing nails should be long enough to penetrate the wood decking a minimum of 3 4.