Look along the edge of the dormer siding where it meets the shingles.
Repair leaking roof dormer.
Start low soaking the area just above where the leak appears in the house.
How to fix dormer roof leaks.
Look for signs of rotting or a missing piece of siding.
2 lack of flashing at top of trim over window.
Use a flashlight to ensure the flashing extends.
1 improperly installed or deteriorated roof to wall or roof to roof valley flashings at top back of dormer.
Replace any missing or rotted siding above the step flashing on dormers.
Examine the trim and siding around the dormer.
For example soak the downhill side of a chimney first then each side then the top on both sides.
Flashing shingles replace the flashing and shingles around the dormer.
Recaulk the corner flashing if any areas have hardened caulk.
3 deteriorated caulk around window and sill.
Oh and the cable line was relocated and its hole sealed up.
Check the flashing beneath the corner trims along.
This dormer leak repair has kept the house waterproof ever since and the workmanship has a 10 year warranty.
Flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill nail holes gaps loose flashing or loose shingles.
If you see damage to joints previously sealed with a line of.
Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.
4 roofing leak above dormer due to age deterioration or poor installation.
Isolate areas when you run the hose.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
With layers properly added to repel and divert water the vinyl siding and roof shingles were re installed.