Replacing Roof Over Existing Roof

Roofing over an existing roof is also called reroofing or an overlay.

Replacing roof over existing roof.

You re permitted to have two layers of asphalt shingles on your roof so if there s only one in place now you can have a new layer installed right on top. A properly installed layover roof can look and function as well. One way to minimize this problem is to go over the old roof and correct as many problems as you can before re roofing. It doesn t take much more than a hammer some roofing nails and a handful of shingles to correct bumps gaps and protruding nails.

If you choose the latter you ll also have to decide whether to roof over your existing roof or whether to remove it. This provides added protection against ice dams. Usually you do not remove any part of the original roof which not only saves money but shortens the process and is a less unsettling process. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.

Your house will probably be worth less. There are cost consequences either way. Add a new layer of shingles which means that there is no tearing off of the old roof. It is the process where roofers install a new roof over your existing one i e.

Some roofers install a layer of waterproof shingle underlayment wsu over the existing shingles at the eave end as would be done for a roof laid on bare sheathing. That will save you as much as 1 000 and a fair bit of mess but it means the roofer can t inspect and repair the decking and flashing underneath. Your roof is soft and spongy feeling if when walking on your roof the majority of it feels soft and spongy you may have some problems with the underlying sheathing of the roof. Putting new shingles over existing problems can leave you with a rather unattractive new roof.

Going the repair route. A roof over is the process of placing a new roof or roof material over your existing roof. Putting a new roof over a leaking roof won t remove the leaks. Difference between reroofing and roof replacement.

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. This is also an excellent opportunity to update the look and feel of your mobile home which can also. This new roof with a higher pitch can be accomplished with premade roof trusses and typical asphalt shingles. To fix it you ll need to remove the existing roof.

Shingles that are raised or misshapen make it hard to lay a smooth flat layer of new shingles on top.