Reshingle Roof Over Old Shingles

Damaged shingles should be removed to check the decking for problems.

Reshingle roof over old shingles.

Roofing second layer of shingles roofing. 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. Remove the ridge caps. 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.

It s worth getting underneath to see. 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. Install a layer of roofing felt over the roof before you begin installing the new 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. Step 3 cover the 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.

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. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. Shingles are designed for flat surfaces.

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. The felt should be secured every six inches with nails or staples. Use a flat pry bar. Doing it now will make it easier to keep the reroofing job clean.

Can you put new asphalt roof shingles right over old ones. 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. 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. Damaged decking will need to be repaired before you can install any new shingles.