Roofing Nail Length For Architectural Shingles

If you are putting a layer of asphalt shingles over an existing layer of asphalt shingles on to a 3 4 inch deck or a plank deck then you should be using 1 1 2 inch nails.

Roofing nail length for architectural shingles.

Existing roof is a 3 tab shingle with 1 2 plywood. Fasteners should be driven straight and flush with the shingle surface. Six nails are required for structures with slopes exceeding 60 degrees or 21 inches per foot. I installed 15 32 radiant barrier over skip sheating.

Both nails and staples should be long enough to penetrate the roof sheathing by 3 4 inch or penetrate 1 4 inch through the sheathing if it is less than 3 4 inch thick. Seems 1 1 4 nails are recommended. The roof structure is completely open and can be seen from underneath. Most of the nails do not come through the plywood.

However where the roof deck is less than three fourths of an inch thick the nail should be long enough to penetrate fully and extend at least one eighth of an inch through the roof deck. Wood shingles minimum 3 4 sheathing wood shingles nail type minimum length 18 straight split 3d box 1 1 4 18 and 24 handsplit and resawn 4d box 1 1 2. In some areas of the country building codes may require six nails as well. The series highlights our popular duration shingles along with up to 7 other duration styles depending on where you live that feature unique performance characteristics.

It is outside in a yard. 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 the cambridge shingle nails must be applied into the nailing zone. Nails of the proper length should penetrate three fourths of an inch into the roof deck.

Roofs been on quite awhile and the nails held ok. Duration series shingles are unrivaled by any other architectural shingles because they feature our patented surenail technology a technological breakthrough in shingle design. Each shingle model has specific requirements for nails printed on each shingle wrapper. Select a length of roofing nails that penetrates completely through the new layer of shingles existing layer and the wood roof deck.

Apply the shingles to all roof planes ending a row of shingles at the top of the plane which is the ridge or peak and cut to follow the profile of any outside corners. The other common nailing defect is improperly located nails. Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 3 mm shank with a minimum 3 8 inch diameter 10 mm head astm f 1667 hn2018 said. If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice.

It is very problematic to have nails located too high on the shingle.