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.
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.
How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.
It s worth getting underneath to see.
Doing it now will make it easier to keep the reroofing job clean.
Step 3 cover the old shingles.
Can you put new asphalt roof shingles right over old ones.
Damaged decking will need to be repaired before you can install any new shingles.
If your existing roof is old the barrier may not have been applied the last time your roof was replaced.
In addition if you overlay over existing shingles you miss the opportunity to install an ice and water leak barrier to your wood decking.
Damaged shingles should be removed to check the decking for problems.
Remove the ridge caps.
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.
Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.
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.
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.
How to do it remove caps.
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.
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.
Use a flat pry bar.
Roofing second layer of shingles roofing.
The felt should be secured every six inches with nails or staples.
If a shingle is.