Can You Put New Shingles Over Old Ones

The answer is yes you can lay new roof shingles over old ones.

Can you put new shingles over old ones.

The third layer of shingles will be too heavy to be supported. If you re not sure whether needs replaced it s always best to consult with a roofing expert instead of just winging it. If you need to redo your roof you might be tempted to save some money by having another layer installed over the existing shingles. You can save a lot of money.

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. Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles. 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. 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.

The basic rules know this. Has the same manufacturer s warranty. 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. In the right situation putting new shingles over old ones saves money and helps the environment.

Your new shingles will likely not last as long as promised. Less labor generally means less cost and it certainly applies to a re roofing job. But before we get started one thing must be clear. What you ll need if you are looking to save time installing new shingles over old shingles is a possible roof replacement solution.

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. Then we ll look a lot more reasons why you might not want to do this. Placing old shingles over top of the new ones is only possible with asphalt shingles which are also known as composition shingles.

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. Putting new shingles over the old ones is possible however there are also times when it just won t work. 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.

But you must take care to install shingles correctly so they lie flat. Tear offs increase labor costs and they generate waste that typically requires transportation to a landfill.