New Roof Over Old Roof

Before you reshingle a roof read our step by step guide for adding new shingles over old ones.

New roof over old roof.

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. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. Why installing new shingles over old shingles can be good. It can save you money at the time but it might actually end up costing you more in the long run.

That s also why building codes commonly limit re roofing to no more than two layers. 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. 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. Let s start with the good.

Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.