Install a layer of roofing felt over the roof before you begin installing the new shingles.
Putting shingles over old shingles on garage roof.
Finally i had time to put the video clips together.
Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones.
If you need to redo your roof you might be tempted to save some.
The answer is yes you can lay new roof shingles over old ones.
Apart from the problems going unnoticed during the actual shingle over there are long term effects to consider as well.
Long term effects of shingling over shingles.
After the beating it took this winter our roof needs to be replaced.
My shingles are only six years old so i was shocked to see deterioration.
That s a lot of extra weight putting added stress on the roof decking.
All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.
The shingles covering the peak of the roof do not look like all the other shingles on my roof.
Step 3 cover the old shingles.
Please click show more below to know.
But before we get started one thing must be clear.
Leave the old valley flashing in place and install new over it.
Damaged decking will need to be repaired before you can install any new shingles.
Because asphalt shingles are routinely exposed 5 in rip down the first strip the starter course so that it is 5 in.
In this video we provide details on how to install roof shingles over existing shingles.
Is it okay to put the new shingles right over the old ones.
The felt should be secured every six inches with nails or staples.
We discuss the nesting method which helps minimize an uneven appear.
But you must take care to install shingles correctly so they lie flat.
Before you begin installing the new shingles be sure to inspect the roof for any damage.
Damaged shingles should be removed to check the decking for problems.
Now that we ve taken care of the primary question at hand we ll consider a couple of reasons why you might want to do this.
If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles.
Then we ll look a lot more reasons why you might not want to do this.
The color is the same but.
For instance instead of just one roof on your home you now basically have two.
Adding new roofing over old sometimes called a re roof is possible only with asphalt shingles also called composition shingles.