Smaller nail holes will be permanently fixed by this method standard roofing nails would be either 3 8 inch or 1 2 inch making a hole 3 8.
Small hole in roof felt.
Step 3 mark the areas that appear to be leaks with chalk so they will be easier to find later when making a permanent repair.
Roofing felt may be necessary for use with your shingles to meet a class a fire rating when shingles are evaluated for their fire ratings it is done on a small test deck with the roofing felt underlayment in place without this underlayment the shingles alone may not meet the class a fire requirements.
Instead of replacing the felt roof we decided to use a product call.
This will cost around 460 510 made up of.
Shine a flashlight along the underside of the roof and look for a hole in the roof as well as areas that are wet or have been darkened by moisture.
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You might find holes left over from a satellite dish or antenna mounting brackets or just about anything.
To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists.
And exposed misplaced roofing repair nails should be pulled and the holes patched.
Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.