Re Roofing A House Over Existing Shingles

When you should tear off your roof and start from scratch instead.

Re roofing a house over existing shingles.

This will help keep any moisture from getting under the felt. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. Remove the ridge caps. Watch for damaged or un sound roof decking.

If a shingle is. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. The felt should be secured every six inches with nails or staples. The quick answer is yes you can re roof architectural shingles over existing architectural shingles however you must check with the shingle manufacturer as well.

You can t do it with wood or slate for example and you should never mix materials such as laying asphalt shingles over cedar shakes. Nailing new shingles over existing ones is less expensive and faster requiring less labor but it also means you lose the chance to assess the sheathing for signs of water damage. Doing it now will make it easier to keep the reroofing job clean. Why installing new shingles over old shingles can be good.

Use a flat pry bar. How to do it remove caps. 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. Having said that it will be nearly impossible to get a good looking quality installation.

Investigate strip shingles entirely and replace roof sheathing as needed. Let s start with the good. When roofing over your existing shingles can be a good idea. Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement.

Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. But before we get started one thing must be clear. You can save money because there s no dump fee for removing your old roofing and there s no need for additional felt paper over the old roof.

If your roof is in good shape but has some damage to one side from a downed tree or has lost shingles in a wind storm an overlay is worth considering. Install a layer of roofing felt over the roof before you begin installing the new shingles. It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you.