How Long Should My Roofing Nails Be

The nail plate and nail bed.

How long should my roofing nails be. Nails that are longer than six inches are called pikes and they are seldom used on roofs. If you want to hold 1 2 drywall to a stud wall the length of the nails should be at least 1 1 2. For reroofing shingle over shingle or hip and ridge application it is necessary to use minimum 35 mm long roofing nails. You can t see it because it is underneath your.

The one to two inch roofing nails are suitable for most types of roof shingles. Your fingernails are made up of a bunch of different parts the most important ones of which are. When nailing very thin materials into wood a minimum of 1 2 of penetration is necessary. In general roofing nails should be long enough to penetrate the wood decking a minimum of 3 4.

This is a reasonable guide most of the time. 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. Nails of the proper length should penetrate three fourths of an inch into the roof deck. 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. When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. It is essentially where your nail comes from. More than 1 layer of roofing not recommended over 3 8 sheathing.

The more common roof thickness is 3 4 inch decking. Use 1 nails in re roof applications when the old roof has been removed and to use 1 nails when overlaying the old roof. How your nails work.