Reseal Chimney Flashing

Flashing is your main defense against leakage so you want to make sure it is securely fastened and that there are no holes or gaps.

Reseal chimney flashing.

Chimney flashing repair cost. Chimney flashing is a sheet of metal installed around the base where the roof and chimney meet to prevent leaking. Clean off any dirt or debris from the surfaces near the flashing edge where it meets the shingle or chimney surface step 2 re apply new caulk using your caulk gun to apply new polyurethane caulk along the edges of the cap flashing where it meets the mortar of the chimney. Other problems can occur with the flashing that may cause leaks and fixing it isn t impossible.

When a roof leaks the problem is often due to leaks in and around the metal roof flashing that protects roof edges valleys and the junctions between roofing and obstructions such as chimneys dormers and vent pipes. Most often when a chimney leaks the leak originates in that spot. Check flashing around the base of the chimney along the walls and around the plumbing vents. Chimney flashing is the layer of sheet metal that connects the roof to the chimney it is designed to be the seal that prevents water from entering your home by running down the chimney.

Over time water erodes away the watertight finish that sealed the flashing or the flashing literally rusts away from the roof. Chimney flashing repair costs 200 to 500 to fix and reseal. Look for areas where water might be getting in gaps bent flashing holes made by roofing nails etc. If you discover that you have water leaks occurring near or around your chimney then it may be time to replace the roof flashing and reseal around the chimney.

Begin correcting the problem by removing any leaves or debris from the void and then scraping or chiseling the dried roofing cement off of the bricks so the. The average cost to replace chimney flashing is 300 to 1 500 depending on the chimney type. This video explains how we do our chimney flashing and how it keeps water out of your home. The l shaped flashing that protects the joint between a roof and a chimney can sometimes pull away from the chimney especially if it s only held in place by roofing cement.