Position an extension ladder securely against the edge of the roof.
Fixing roof leak around chimney.
Begin soaking low on the roof just above where the leak is visible inside the house.
Look in the attic with a flashlight for evidence like water stains trhen trace them up the roof and rafters to the entry point.
Inspect the flashing at the top sides and bottom edge of the chimney.
How to fix a leaky roof by a chimney 1.
The crown of a masonry chimney is a concrete top that ideally looks something like the one shown.
Get a chimney cover and have a professional make sure it s not this simple.
Turbo poly seal makes it easy to seal between the bricks and it makes a perfect transition from brick cement to metal or copper flashing.
How to fix a roof leak around the chimney chimney cap a new chimney cap may keep water from entering the top of the chimney and help keep critters out flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill holes gaps flashing and loose shingles around the chimney.
Start low soaking the area just above where the leak appears in the house.
How to fix it.
Isolate areas when you run the hose.
Use special masonry caulk to seal the joints between the flashing and the chimney.
A newer chimney crown should be several inches thick reinforced with rebar and caulked to the clay flue.
Apply roof cement to any gaps or cracks.
2 many chimney leaks are from cracks in the chimney crown.
If a leak is difficult to find enlist a helper and go up on the roof with a garden hose.
Extend the ladder up so the top rung is at least.
Attach loose flashing securely to the chimney with masonry nails.
If portions are missing or bent contact a.
If the leak isn t obvious have a helper watch in the attic while you get on the roof with a garden hose.
A few easy steps to stop chimney flashing from leaking.
Seal the seam between the cap and step flashing with urethane roofing cement or silicone caulking compound as shown at right.
Older crowns may not be this solid but if they re basically sound they can be repaired with polyurethane caulk.
Put on work.
For example soak the downhill side of a chimney first then each side then the top on both sides.
Inspect the flashing for gaps or cracks.
Renew flashing seals by chipping out the old mortar and caulking along the edges of the flashing.
