Reshingle Roof 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.

Reshingle roof over old shingles.

The felt should be secured every six inches with nails or staples. 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. Step 3 cover the old shingles.

Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. 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. Shingles are designed for flat surfaces. If your existing roof is old the barrier may not have been applied the last time your roof was replaced.

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 shingles should be removed to check the decking for problems. 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. 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 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. How to do it remove caps. Use a flat pry bar. Roofing second layer of shingles roofing.

How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. 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. If a shingle is. In addition if you overlay over existing shingles you miss the opportunity to install an ice and water leak barrier to your wood decking.

Your existing layer of roof shingles is deteriorating and you need to get a new roof installed. They don t do a good job of bridging over gaps dips or humps including the stepped texture created by overlapping shingles. Doing it now will make it easier to keep the reroofing job clean. Remove the ridge caps.