Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.
Roof felt broken.
Holes in roofing felt are quite common here we repair a hole in some roofing felt that is underneath the tiled roof.
Four reasons asphalt saturated felt roof underlayment fails.
To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists.
However there are problems with asphalt saturated felt underlayment that can cause it to fail.
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Starting at one corner of the roof wedge a pry bar into the narrow space at the top of the shingle mold the thin wooden strip that sits just below the shingles.
A poor quality asphalt saturated felt roof underlayment is at high risk of failure.
Basic felt solutions cost around 50 per square metre for the material itself and more high end materials such as modern grp a form of fibreglass going up to 90 per square metre.
Phil demonstrates what can happen when roofing felt has gone rotten and what needs to be done to fix it.
Force the mold away from the roofing a few inches at a time then lift off the entire piece in one section.
Hold onto the old shingle mold if it looks to be in good shape.