New Roof On Top Of Old Roof

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

New roof on top of old roof.

If you re going to add a roof on top of an old one it s a good idea to remove any loose shingles and apply a new layer of 30 pound roofing felt before laying the new shingles. Installing a new roof over shingles takes less time than tearing off the old roof. Manufacturers will still. 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.

As long as it s done right and under the right conditions installing new shingles over old ones can last as long and look just as good as a complete re roof. This provides a safer environment for both workers inside the building and the roofers as they install the new roof. Has the same manufacturer s warranty. By using roof huggers the existing roof can be left in place.

This new roof with a higher pitch can be accomplished with premade roof trusses and typical asphalt shingles. More difficult to check deck when you tear off the old roof you get a look at what s underneath. Shingles that are raised or misshapen make it hard to lay a smooth flat layer of new shingles on top. Can new plywood be installed on a 40 year old roof without removing the old.

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. The use of roof hugger systems allows you add blanket rigid and or reflective insulation between the existing and new roofs. Your house will probably be worth less. Looks just as good and lasts as long.

By placing shingles on top of a damaged roof you ll affect the way the roof looks. Roy gingrich of ellicott city has a 40 year old house with an asphalt shingle roof surface. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Since it s being put on top of another less than perfect roof it s likely that it may not look as good as a brand new roof would.

If your existing roof is fairly old there s a good chance the shingles are damaged. Find a pre screened local roofing contractor. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. A layer of old deteriorating shingles can make your new roof look bad.