In this situation it s best to call in a professional roof repair service to examine the roof to determine the best solution.
Fix a leaky roof vent.
Damp spots around interior air vents or fireplaces.
Dig out any cracked or dry caulking that isn t properly sealing adjoining surfaces and replace with silicone caulk.
Moist drywall or paint around light fixtures or electrical outlets.
For example soak the downhill side of a chimney first then each side then the top on both sides.
Isolate areas when you run the hose.
Use the knife blade to scrape the pipe clean and smooth.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Although caulking around the roof vent can fix the problem for a while it s not a permanent solution.
In most cases a plastic roof vent will be suffering from cracked housing whereas a metal vent will most likely be leaking due to a broken or faulty seam.
Recaulk the corner flashing if any areas have hardened caulk.
Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe.
Interior paint bubbling or peeling during hard rains.
Moreover this can cause more problems since it may mask the damage that s already been done to your home by the leak.
Steps for fixing a leaking rooftop vent pipe.
Apply a thick bead of lap seal caulk around the seam.
Cut away the old caulk from around the vent pipe.
Water stains or damp spots on your ceiling.
A code lead jack is going to be much better because it has a much larger base to it which sits flat on the roof.
Replace any missing or rotted siding above the step flashing on dormers.
Bring a leaky roof vent up to code start by removing the old lead jack and removing shingles around it.
Perhaps one of the most common fixes is to simply use caulkto resolve the problem and while this can be temporary short term fix it is a solution that will not last for a very long time.
Here are a 19 signs you may have a roof leak.