Reshingle Roof Over Old Shingles

They don t do a good job of bridging over gaps dips or humps including the stepped texture created by overlapping shingles.

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. Step 3 cover the old shingles. Damaged decking will need to be repaired before you can install any new shingles. Doing it now will make it easier to keep the reroofing job clean.

If a shingle is. It s worth getting underneath to see. 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.

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. The felt should be secured every six inches with nails or staples. Can you put new asphalt roof shingles right over old ones.

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. Use a flat pry bar. Roofing second layer of shingles roofing.

Damaged shingles should be removed to check the decking for problems. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. Your existing layer of roof shingles is deteriorating and you need to get a new roof installed. Shingles are designed for flat surfaces.

How to do it remove caps. Install a layer of roofing felt over the roof before you begin installing the new 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. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.