New Roof Over Existing Shingles

However you ll want to check with your local building department before you make any decisions.

New roof over existing shingles.

In fact the only pro to a shingle over is it s cheaper and cleaner. The layers of felt should be overlapped by 1 inch as you work toward the roof ridge. 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. The condition of the existing roof is critical.

Remove the ridge caps. Use a flat pry bar. You need a flat surface to install a new roof over existing shingles. Inspect the condition of your current roof.

Doing it now will make it easier to keep the reroofing job clean. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. How to do it remove caps. The felt should be secured every six inches with nails or staples.

Install a layer of roofing felt over the roof before you begin installing the new shingles. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. But you must take care to install the shingles correctly so they lie flat.

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. Yes you can install a metal roof over shingles. Mold rot or other significant damage needs to be taken care of with a full replacement not hidden by new materials. Let s start with the good.

This will help keep any moisture from getting under the felt. Multiple layers of shingles can make it difficult or impossible for the nails to penetrate. It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.

Although it sounds like a good idea we can assure you the cons heavily outweigh the pros. If a shingle is. Reroofing is the process of layering one set of new shingles over a set of existing shingles. That s also why building codes commonly limit re roofing to no more than two layers.

When roofing over your existing shingles can be a good idea. How to install a roof over an existing roof determine the feasibility. The roof should be in sound. Old shingles can curl over time.

Why installing new shingles over old shingles can be good. When you should tear off your roof and start from scratch instead. Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement.