Can You Put New Shingles Over Old Ones

If you need to redo your roof you might be tempted to save some money by having another layer installed over the existing shingles.

Can you put new shingles over old ones.

Although placing new roofing over old may be allowed by some codes roofovers tend to be inferior and won t last as long as a roof installed over stripped sheathing. Then we ll look a lot more reasons why you might not want to do this. 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. Putting new shingles over the old ones is possible however there are also times when it just won t work.

The short answer is yes you can lay new roof shingles over top of the old ones but there are other reasons to take into consideration. Now that we ve taken care of the primary question at hand we ll consider a couple of reasons why you might want to do this. But before we get started one thing must be clear. You can save a lot of money.

Less labor generally means less cost and it certainly applies to a re roofing job. You won t need to pay for removal and disposal of your old shingles because they re not going anywhere and the lower number of man hours keeps cost way down. In the right situation putting new shingles over old ones saves money and helps the environment. The answer is yes you can lay new roof shingles over old ones.

The third layer of shingles will be too heavy to be supported. Placing old shingles over top of the new ones is only possible with asphalt shingles which are also known as composition shingles. What you ll need if you are looking to save time installing new shingles over old shingles is a possible roof replacement solution. Although it is often necessary to remove old shingles it s great when you can avoid the added expense of a tear off.

If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. You want to be sure that you will be installing the shingles over only one other layer though. Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles. The basic rules know this.

It s not ideal to install new shingles without removing the old ones but follow this pro advice if you do. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. Manufacturers will still warranty the roof for the same amount of time as a re roof as long as it s done by a qualified installer. Is it okay to put the new shingles right over the old ones.

But you must take care to install shingles correctly so they lie flat. If you re not sure whether needs replaced it s always best to consult with a roofing expert instead of just winging it.