How many nails should you put in a three tab shingle?
A three-tab shingle requires 4 nails per shingle. The amount of tabs does not change the number of nails required to secure the shingle. A 4-tab shingle of the same length will also require 4 nails – the same goes for architectural shingles.
When installing three tab shingles No nails should be placed within how many inches of a valley?
minimum of 12″. Fasten a minimum of 6″ away from center line on each side of valley.
Are roofing nails supposed to go through?
It is crucial that roofing nails of the correct length were used to secure the shingles. The sharp tip of the roofing nail should pass through and extend approximately 3/8-inch past the underside of the roof sheathing.
When nailing shingles how far away from the valley centreline should nails be placed?
Shingle laps shall face away from the prevailing wind direction. Shingles must be fastened with nails located not more than 25 mm (1”) from the edge and 25 mm (1”) above the butt of the overlying shingle on both sides of the hip or ridge centre line.
How wide should valley flashing be?
If not metal, the material must still be corrosion-resistant and non-staining. Also, at a minimum, valley flashing must be 24 inches (610 mm) wide.