Roofing Nail Length For Architectural Shingles

The nails used are 1 2 3 4.

Roofing nail length for architectural shingles.

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

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. It is very problematic to have nails located too high on the shingle. 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. Nails of the proper length should penetrate three fourths of an inch into the roof deck.

In some areas of the country building codes may require six nails as well. Nail fastening pattern a four nail fastening pattern per shingle is required to take advantage of the maximum wind warranty available on owens corning duration shingles. I installed 15 32 radiant barrier over skip sheating. It is outside in a yard.

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. Existing roof is a 3 tab shingle with 1 2 plywood. Most of the nails do not come through the plywood. If your decking is less than 3 4 inch then a 1 1 2 inch nail will suffice.

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. 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. The correct nail must be applied 2 5 cm above the cut out and 2 5 cm from each edge. The other common nailing defect is improperly located nails.

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. The roof structure is completely open and can be seen from underneath. 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.

Roofs been on quite awhile and the nails held ok.