4 Things To Understand About Re-Roofing

Reroofing is a process where you put an additional layer of shingles over the existing layer of shingles on your roof. Reroofing can extend the life of your roof.

Reroofing Requires No Tear-Off

When you reroof your roof, you do not have to tear off the old shingles and the protective under layers from your roof.  You also don't have to remove the roof decking as well. When you reroof your home, you don't have to worry about renting a dumpster to get rid of all the debris that is required with a tear-off. A tear-off can be labor intensive and adds additional costs to fixing up your roof.

Reroofing Doesn't Require an Underlay

When you reroof your home, you are putting a new layer of shingles on top of the existing layer of shingles. You are not putting down a new underlayer between the old shingles and the new ones. You only need to purchase enough shingles to cover the top of your roof.

Have to Be Careful with the Number of Layers on Your Roof

You need to be careful with the number of layers that you put on your roof. Local roofing regulations often limit the number of layers of shingles you can have on your roof to two or three layers of shingles. If you put too many layers of shingles on your roof, your roof deck may not be able to support all the weight, leading to a roof collapse.

Check and see how many layers of shingles your local building code allows you to put on your home.

Doesn't Last as Long as A New Roof

Putting a new layer of shingles on top of your existing shingles is not going to last as long as installing a new roof. Reroofing doesn't last as long as tearing off and installing a new roof because the materials under the new layer of shingles – the old layer of shingles and the old underlay and decking – can still sustain damage and wear out over time.

Warranty Coverage Can Vary

Finally, warranty coverage can vary with a reroofing job. Some shingle manufacturers void the warranty if you reroof instead of doing a tear-off. Other shingle manufacturers offer a shorter warranty when you do a tear-off instead of reroofing. The roofing company that installs your roof should also offer a warranty for the labor as well.

When you reroof your roof, a new layer of shingles is placed on top of the existing layer of shingles. Nothing is torn off your roof, and a new underlayer is not put down. It is only advisable to have two or three layers to your roof without getting too heavy. A re-roofing job doesn't last as long as a tear-off, and warranty coverage can vary. To learn more, contact a company like Hogan  Roofing. 

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