How Long Are Roofing Nails

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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. 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. For reroofing shingle over shingle or hip and ridge application it is necessary to use minimum 35 mm long roofing nails. 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 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. The more common roof thickness is 3 4 inch decking. This adds up to an average of 320 nails or 100 square feet.

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. 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. Roofing nails range from one to six inches in length.

The length of the nail is the shank and the shank can also vary. When using a 1 5 inch. Fasteners must be driven flush with the surface of the shingle. Fasteners should be long enough to penetrate at least 3 4 19mm into wood decks or just through the plywood decks.