Nail Over Roof

In most states you re only allowed to have 2 layers of shingles on a roof for fire safety reasons.

Nail over roof.

If your roof already has 2 or more layers it ll have to be replaced for fire safety reasons. Multiple layers of shingles can make it difficult or impossible for the nails to penetrate. The main drive for people to try to reroof is the cost. Your asphalt shingles come out of the package with a warranty.

You ll have a. To learn more about nailing over your current roof read this article on if you can nail over an existing asphalt shingle roof. However you ll still see roofs that have 3 or 4 layers today. When nailing shingles proper penetration into the roof deck is essential to ensure the nail and shingle remain secure.

How to install a roof over an existing roof determine the feasibility. 3 degree electro galvanized steel roofing nails 5 lb pack for applying roofing asphalt shingles insulation board and felt to wood substrates. The condition of the existing roof is critical. Use the grip rite 11 x 1 1 4 in.

More product details close. 5 things to know about a nail over 1. 3 use the grip rite 11 x 1 1 4 in. Nailing over is laying nailing a new asphalt roof over the top of your old asphalt roof.

Inspect the condition of your current roof. You won t qualify for an enhanced material warranty. It s cheaper than a roof replacement. The roof should be in sound.