The surface may also suffer from dips or hollows.
Garage roof felt leaking.
You will need a professional roofer to come and remove the existing felt and any stone chippings look at the condition of the roof timbers and if they re not rotten.
Dips or hollows in the.
Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a protective coating such as bitumen asphalt which repels water but still allows the product to breathe.
Edging can also lift or old flashings against the wall could leak.
For example if an old felt roof is covered in moss loose rock chippings and lichen.
As with most temporary flat roof repair work a paint on solution can fix leaks.
Common problems with these roofs are cracks puncture holes impact or splits in the felt.
Old pour and roll felt roofing can crack get puncture holes usually from impact or the felt could split.
Prepare the roof area surrounding the leak by removing dirt debris and raised parts of the old roofing.
A felt roof could mean the now very old pour and roll type felts or the newer and much better torch on roofing felts.
Leaking flashings into the wall of the house.