Force the mold away from the roofing a few inches at a time then lift off the entire piece in one section.
Roof felt broken.
However given the nature of flat roof repair costs it can sometimes make sense to replace the entire roof.
Hold onto the old shingle mold if it looks to be in good shape.
Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.
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.
Asphalt saturated felt roof underlayments will fail if torn or damaged during installation.
Four reasons asphalt saturated felt roof underlayment fails.
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.
Holes in roofing felt are quite common here we repair a hole in some roofing felt that is underneath the tiled roof.
Brought to you by http www ultimateha.
However there are problems with asphalt saturated felt underlayment that can cause it to fail.
A poor quality asphalt saturated felt roof underlayment is at high risk of failure.