Reshingle Roof Over Old Shingles

Your existing layer of roof shingles is deteriorating and you need to get a new roof installed.

Reshingle roof over old shingles.

Looks just as good and lasts as long. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles. Has the same manufacturer s warranty.

Roofing second layer of shingles roofing. That s also why building codes commonly limit re roofing to no more than two layers. Pry the shingle from the roof. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new 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. You want to be sure that you will be installing the shingles over only one other layer though. If you are looking to save time installing new shingles over old shingles is a possible roof replacement solution. In fact the only pro to a shingle over is it s cheaper and cleaner.

If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. Installing a new roof over shingles takes less time than tearing off the old roof. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. But you must take care to install shingles correctly so they lie flat.

Although it sounds like a good idea we can assure you the cons heavily outweigh the pros. When contemplating a new roof many people hope to simply do a shingle over and avoid the extra cost and mess of tearing off the existing roof and starting from scratch. Place a pitchfork flat garden shovel or shingle scraper under the shingle. One question you might have is can i reroof over existing shingles the answer is it depends state regulations and the condition of your roof both play a role in determining if you need a roof replacement tear off vs cover over.

The nails in the shingle should come up with the shingle when you pry it off.