You might find holes left over from a satellite dish or antenna mounting brackets or just about anything.
Small hole in roof felt.
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.
Fill small nail holes with silicone caulk or roof cement.
And exposed misplaced roofing repair nails should be pulled and the holes patched.
This will cost around 460 510 made up of.
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.
We had a problem with our shed workshop flat felt roof leaking and needed a quick repair.
Instead of replacing the felt roof we decided to use a product call.
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Tiny holes in shingles are sneaky because they can cause rot a leaky roof and other damage for years before you notice the obvious signs of a leak.