Schimney Roof Counter Flashing

Not only will it prevent leaks but it will also extend the life of your chimney s masonry.

Schimney roof counter flashing.

Flashing refers to the metal barrier installed where the roof meets any vertical wall including chimneys and dormers. Counter flashing provides an added measure of protection. If the systems are a masonry chimney the counter flashing should be ground into the system to ensure that the majority of the water cannot bypass the seam of the counter and step flashing. Flashing directs rainwater away from these junctions preventing subsequent leaks and water damage.

Chimney flashing is a generic term for any metal or rubber boot used when a vent pipe passes through a roof. It directs water away from the chimney and seals off the gap between the pipe and the roof. Properly flashing a chimney is important to prevent water from leaking between the chimney and roof and getting into the building s walls. All you need to complete this project are a few tools and a little know how.

The installation of counter flashing against a chimney works together with the base and step flashing to form a waterproof system for your roof. There are different types of flashing for different chimneys but we ll focus on flashing designed for round metal pipe. Counter flashing counter flashing is placed over the step flashing parallel to the chimney. Step 1 cut the mortar joint.