How to do it remove caps.
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.
Can you put new asphalt roof shingles right over old ones.
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.
Damaged shingles should be removed to check the decking for problems.
The felt should be secured every six inches with nails or staples.
It s worth getting underneath to see.
Step 3 cover the old shingles.
Shingles are designed for flat surfaces.
Your existing layer of roof shingles is deteriorating and you need to get a new roof installed.
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.
Use a flat pry bar.
If a shingle is.
Roofing second layer of shingles roofing.
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.
Remove the ridge caps.
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.
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 shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.
They don t do a good job of bridging over gaps dips or humps including the stepped texture created by overlapping 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.
Doing it now will make it easier to keep the reroofing job clean.