How Long Should Roofing Nails Be

There almost done with job.

How long should roofing nails be.

To adjust the pitch a little on the low slope roof. Continue reading below our video of the day. 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. For reroofing shingle over shingle or hip and ridge application it is necessary to use minimum 35 mm long roofing nails.

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 thickness of the nail is directly proportional to its length thus the longer the nail the bigger its size. In general roofing nails should be long enough to penetrate the wood decking a minimum of 3 4. The more common roof thickness is 3 4 inch decking.

Hired a roofing company last week. They do specify the shank to be 11 12 gauge the head diameter to be st least 3 8 but no specs on how long the shaft needs to be after passes through a 7 16 or 3 8 sheathing. Browse other blogs by keywords. 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.

There going to nail down some 1 inch poly iso roofing insulation. Nails of the proper length should penetrate three fourths of an inch into the roof deck. Roofing nails range from one to six inches in length. Nails that are longer than six inches are called pikes and they are seldom used on roofs.

But the nails they will use are 3 why so big. Do the nails really have to be 3 long. If you are using an approved roof sheathing that is less than 3 4 like 7 16 osb or 3 8 plywood then the nail must go all the way through.