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. 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. Use a flat pry bar. 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 a shingle is. Damaged shingles should be removed to check the decking for problems. Doing it now will make it easier to keep the reroofing job clean. In addition if you overlay over existing shingles you miss the opportunity to install an ice and water leak barrier to your wood decking.

One question you might have is can i reroof over existing shingles the answer is it depends state regulations and the condition of your roof both play a role in determining if you need a roof replacement tear off vs cover over. How to do it remove caps. 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 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.

They don t do a good job of bridging over gaps dips or humps including the stepped texture created by overlapping shingles. Step 3 cover the old shingles. Can you put new asphalt roof shingles right over old ones. 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.

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. It s worth getting underneath to see. Remove the ridge caps. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.

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. Your existing layer of roof shingles is deteriorating and you need to get a new roof installed. Roofing second layer of shingles roofing. Damaged decking will need to be repaired before you can install any new shingles.