To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists.
Roof felt broken.
Force the mold away from the roofing a few inches at a time then lift off the entire piece in one section.
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.
A poor quality asphalt saturated felt roof underlayment is at high risk of failure.
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Four reasons asphalt saturated felt roof underlayment fails.
Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.
Holes in roofing felt are quite common here we repair a hole in some roofing felt that is underneath the tiled roof.
However given the nature of flat roof repair costs it can sometimes make sense to replace the entire roof.
Phil demonstrates what can happen when roofing felt has gone rotten and what needs to be done to fix it.
However there are problems with asphalt saturated felt underlayment that can cause it to fail.
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.