New Roof Over Old Roof

But you must take care to install shingles correctly so they lie flat.

New roof over old roof.

Add a new layer of shingles which means that there is no tearing off of the old roof. Installing new roof shingles over old effectively doubles the weight of the roofing so you have to make sure your roof structure can handle the extra load. In this case you can build a new roof over the old with a caveat. It is the process where roofers install a new roof over your existing one i e.

The new plywood will have to be nailed to the rafters or roof trusses. It can save you money at the time but it might actually end up costing you more in the long run. Call for free estimates from roofing pros now. A properly installed layover roof can look and function as well.

When tearing off the old roof is a better option there are already two layers of shingles on your roof most building codes only allow two layers of any type of roofing. That s also why building codes commonly limit re roofing to no more than two layers. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. I ll explain why later.

Find a pre screened local roofing contractor. A new coat of shingles over decaying shingles will cause your roof deck to decay. But with the old plywood left in place it will be considerably more difficult to locate the rafters to ensure proper nail. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.

Current shingles are curling or in bad shape the new shingle roof should lay flat on your old one. 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. 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. The solution is changing the roof pitch or building a new roof at a higher pitch than the old roof.

If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. A roof over is the process of placing a new roof or roof material over your existing 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.