Reshingle Roof Over Old Shingles

If the old ones are flat and you fill in any missing tabs and you do no more that a total of two layers of shingles yes you can reshingle over old shingles.

Reshingle roof over old shingles.

Can you put new asphalt roof shingles right over old ones. The following list includes some universal reasons not to reroof as well as some considerations or things to check out if you re seriously considering adding new roof shingles over old ones. The major question point would be to check out if your old flashings are going to last as long as the new shingles or will they become the first leak points. Roofing second layer of shingles roofing.

It s worth getting underneath to see. Done correctly a reroof job will look as good and last as long as a new roof for a lot less money and a lot less hassle. Step 3 cover the old shingles. How to do it remove caps.

Damaged shingles should be removed to check the decking for problems. Use a flat pry bar. Install a layer of roofing felt over the roof before you begin installing the new shingles. If laying three tab shingles over three tab shingles it is important to nest the new shingles against the old to create a flat surface as friedman elaborates just below.

They don t do a good job of bridging over gaps dips or humps including the stepped texture created by overlapping shingles. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. Remove the ridge caps. Shingles are designed for flat surfaces.

The felt should be secured every six inches with nails or staples. If a shingle is. This process starts with a 5 inch starter strip fit along the eaves and set against the second course of existing shingles see figure 2 16. Damaged decking will need to be repaired before you can install any new shingles.

If your existing roof is old the barrier may not have been applied the last time your roof was replaced. Your existing layer of roof shingles is deteriorating and you need to get a new roof installed. Doing it now will make it easier to keep the reroofing job clean. But unless the sheathing is extensively damaged or the structure can t support the weight of another layer of roofing a better solution is to apply a new layer of shingles right over the old one.