Reshingle Roof Over Old Shingles

How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.

Reshingle roof over old shingles.

The felt should be secured every six inches with nails or staples. Your existing layer of roof shingles is deteriorating and you need to get a new roof installed. Shingles are designed for flat surfaces. Install a layer of roofing felt over the roof before you begin installing the new shingles.

Damaged shingles should be removed to check the decking for problems. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. It s worth getting underneath to see. 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.

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. If a shingle is. Step 3 cover the old shingles. Remove the ridge caps.

In addition if you overlay over existing shingles you miss the opportunity to install an ice and water leak barrier to your wood decking. 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. Roofing second layer of shingles roofing. 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.

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. Damaged decking will need to be repaired before you can install any new shingles. Can you put new asphalt roof shingles right over old ones. They don t do a good job of bridging over gaps dips or humps including the stepped texture created by overlapping shingles.

How to do it remove caps. Doing it now will make it easier to keep the reroofing job clean. If your existing roof is old the barrier may not have been applied the last time your roof was replaced. Use a flat pry bar.