How Long Are Roofing Nails

If you have high wind areas you will want to use five nails pers shingle equating to about 480 per square.

How long are roofing nails.

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. When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails. Fasteners must be driven flush with the surface of the shingle. 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.

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. Another kind of classification for roofing nails is by size. 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. The length of the nail is the shank and the shank can also vary.

The more common roof thickness is 3 4 inch decking. Roofing nails range from one to six inches in length. Use only zinc coated steel or aluminum 10 12 gauge barbed deformed or smooth shank roofing nails with heads 3 8 10mm to 7 16 12mm in diameter. The thickness of the nail is directly proportional to its length thus the longer the nail the bigger its size.

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. When using a 1 5 inch. 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.