Put Shingles Over Old Roof

Over the years we ve seen problems caused by shingle overs.

Put shingles over old roof.

How to do it remove caps. 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. If you haven t noticed yet we are not fans of shingle overs not at all. If you need to redo your roof you might be tempted to save some money by having another layer installed over the existing shingles.

If a shingle is. They don t do a good job of bridging over gaps dips or humps including the. Damaged decking will need to be repaired before you can install any new shingles. Does it cost more to tear off.

We discuss the nesting method which helps minimize an uneven appear. Installing a new roof over shingles takes less time than tearing off the old roof. Why not add new roof shingles over old. Damaged shingles should be removed to check the decking for problems.

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. Looks just as good and lasts as long. Good quality composite shingles can weigh 350 to 450 pounds per square 100 square feet of. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.

Step 3 cover the old shingles. We don t recommend them nor do we do them. Use a flat pry bar. Leave the old valley flashing in place and install new over it.

The felt should be secured every six inches with nails or staples. Because asphalt shingles are routinely exposed 5 in rip down the first strip the starter course so that it is 5 in. Has the same manufacturer s warranty. Is it okay to put the new shingles right over the old ones.

Install a layer of roofing felt over the roof before you begin installing the new shingles. To level out an existing asphalt shingle roof rip down reduce the height of two courses of shingles as shown in the drawing below. Roofing over your existing roof is not worth it. In this video we provide details on how to install roof shingles over existing shingles.

Shingles are designed for flat surfaces. Remove the ridge caps. Place the top of each starter shingle firmly against the bottom of the shingle immediately above it and even with the eaves then nail it into place. Doing it now will make it easier to keep the reroofing job clean.