You can save money because there s no dump fee for removing your old roofing and there s no need for additional felt paper over the old roof.
New roof over old roof.
Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because.
Let s start with the good.
Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option a properly installed layover roof can look and function as well.
Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.
Replacing a roof can be expensive but if a roof contains only a small slope it s possible to raise the roof pitch of a house by building a roof over the old one.
Before you reshingle a roof read our step by step guide for adding new shingles over old ones.
Roofing over your old roof can save you around 1 000 on installation costs because the roofing company won t have to remove and dispose of old shingles.
Why installing new shingles over old shingles can be good.
That s also why building codes commonly limit re roofing to no more than two layers.
Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.