Re Roofing A House Over Existing Shingles

Reroofing is the process of layering one set of new shingles over a set of existing shingles.

Re roofing a house over existing shingles.

Watch for damaged or un sound roof decking. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. This will help keep any moisture from getting under the felt. Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement.

Let s start with the good. Doing it now will make it easier to keep the reroofing job clean. Why installing new shingles over old shingles can be good. 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.

Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles. When you should tear off your roof and start from scratch instead. How to do it remove caps. If a shingle is.

Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. Remove the ridge caps. But before we get started one thing must be clear. When roofing over your existing shingles can be a good idea.

It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you. 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. The felt should be secured every six inches with nails or staples. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.

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. 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. 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.

Prep work for re roofing over asphalt shingles inspect the condition of the existing roof and roof deck for numer of roof layers soundness of roof decking smoothness. The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. Use a flat pry bar.