Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.
Repair cracked roofing felt.
To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists.
If the issue is caught early enough small areas can be removed and patched.
Carefully clean the surface over and around the blister of any chippings mould and dirt.
Blisters in the felt.
This will usually be a crack in the felt or where the felt has peeled away from the roof.
A roofing contractor can investigate the cause of the cracks and determine the best solution for your roof.
Edging can also lift or old flashings against the wall could leak.
As with most temporary flat roof repair work a paint on solution can fix leaks.
For any repair always clean the area thoroughly removing any chippings and use a fungicide to kill any mould growth.
Inspect the roofing for cracks at raised ridges and blistered areas.
Felt flat roof repair.
Typical cracks show up as deep lines in the roofing.
How to repair a flat roof leak.
The surface may also suffer from dips or hollows.
A repair is best made after a long period of dry weather has allowed any moisture in the roof felt to dry out.
Pour some water on the felt roof to see how the water runs into the gaps.
This will cost around 460 510 made up of.