How Long Should My Roofing Nails Be

When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails.

How long should my roofing nails be.

For reroofing shingle over shingle or hip and ridge application it is necessary to use minimum 35 mm long roofing nails. This is a reasonable guide most of the time. 2 points if you get the pun. Is that you should choose a nail that is three times as long as the thickness of the material you are fastening.

Use 1 nails in re roof applications when the old roof has been removed and to use 1 nails when overlaying the old roof. The most commonly used roofing nails range from one to two inches in length. The more common roof thickness is 3 4 inch decking. 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.

If you need bigger nails including pikes you may need to place a special order at the hardware store. If you want to hold 1 2 drywall to a stud wall the length of the nails should be at least 1 1 2. We have to use 30 mm long nails if we are installing thicker shingles like the laminated shingles cambridge xpress or cambridge xtreme 9 5. 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.

More than 1 layer of roofing not recommended over 3 8 sheathing. The rule of thumb with nails. In general roofing nails should be long enough to penetrate the wood decking a minimum of 3 4.