How Long Are Roofing Nails

Another kind of classification for roofing nails is by size.

How long are roofing nails.

The more common roof thickness is 3 4 inch decking. If you re applying a thin shingle to a wood surface and no other shingles are present you might be able to get by with nails that are only one and one quarter inch long. 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. The length of the nail is the shank and the shank can also vary.

Fasteners must be driven flush with the surface of the shingle. When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. The thickness of the nail is directly proportional to its length thus the longer the nail the bigger its size. Continue reading below our video of the day nails that are longer than six inches are called pikes and they are seldom used on roofs.

Roofing nails roofing nail sizes sheathing 3d box 4d box 5d box 6d box what size roofing nails composition shingles wood shakes wood shingles. The shingle warranties are very specific about the nail length and you want the right nail so they have enough holding power to resist blowing off by strong winds. Fasteners should be long enough to penetrate at least 3 4 19mm into wood decks or just through the plywood decks. 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.

If you have high wind areas you will want to use five nails pers shingle equating to about 480 per square. When using a 1 5 inch. For reroofing shingle over shingle or hip and ridge application it is necessary to use minimum 35 mm long roofing nails. Most shingle manufactures recommend using four nails per shingle on the main area of your roof and five nails per square in the first row of roofing.