Reshingle Roof Over Old Shingles

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

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. They don t do a good job of bridging over gaps dips or humps including the stepped texture created by overlapping shingles. Shingles are designed for flat surfaces. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.

Install a layer of roofing felt over the roof before you begin installing the new shingles. 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. Use a flat pry bar. Can you put new asphalt roof shingles right over old ones.

If a shingle is. If your existing roof is old the barrier may not have been applied the last time your roof was replaced. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. Roofing second layer of shingles roofing.

It s worth getting underneath to see. 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. Remove the ridge caps.

Damaged shingles should be removed to check the decking for problems. Your existing layer of roof shingles is deteriorating and you need to get a new roof installed. Step 3 cover the old shingles. The felt should be secured every six inches with nails or staples.

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. How to do it remove caps. 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. 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.