Nails Too Long For Roof

When installing asphalt shingles on felt only to any grade decking you should use 1 inch long roofing nails.

Nails too long for roof.

Looking at a 2005 tile roof installation manual it looks like the minimum penetration of a roofing nail into roof sheathing was 3 4. I d say who the hell uses 3 nails on a roof but then the previous owners used 16d nails as hangars everywhere. Manufacturer specification and common sense dictate the nails penetrate the roof deck whenver possible. Theyre only too long if you dont like them.

Fasteners for asphalt shingles shall be galvanized steel stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 2 67 mm shank with a minimum 3 8 inch 9 5 mm diameter head astm f 1667 of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 1. I have giant nails in our roof too but i ve just opted to ignore them. If this is what happened then you may have a problem unrelated to the quality of the roofing job. Standard roofing nails should not be long or thick enough to split or crack structurally sound dimensional lumber.

Your home is over 50 years old in a warm wet climate so you should inspect for a number of different problems. Why would you inset your head between the rafters anyways. It has to be this way be careful. It s not that he used too long nails standard sizes.

Each of these factors plays a role in determining how many nails you ll need to use per board during roof sheathing application. As far as dangerous the old nails were also through the roof deck i am sure. You can just paint over them and live with the result or fill in the areas with wood covering the tips. The number of nails needed for a roof varies on multiple factors such as board face width length and roof truss spacing.

Boards used for sheathing range from those with a 4 inch face to 48 inch long plywood sheets. The more common roof thickness is 3 4 inch decking. If you do glue the wood with construction adhesive. Roofing nails should be long enough to penetrate the roofing material and go 19 mm into osb solid wood plywood or non veneer wood decking or through thickness of decking whichever is less.

A structure s roof truss spacing can vary from every 12 to 24 inches.