Application of asphalt roofing such that the lapped portion is at least 2" (50 mm) wider than the exposed portion, resulting in two layers of roofing material attached to the deck.
A method of applying roof shingles so that two complete layers of material are provided.
Application of asphalt roofing, as such, as the lapped portions are at least wider than the exposed portion, resulting in two layers of roofing material over the deck.
A method of applying roof shingles that provides two complete layers of protection.
Installing roofing so that there is twice the materials used resulting in a double layer of roofing.
Application of asphalt roofing so that the lapped portion is at least 2 inches wider than the exposed portion, resulting in two layers of roofing material over the deck
Application of asphalt roofing such that the lapped portion is at least two inches wider than the exposed portion. This results in two layers of roofing material over the deck.