Schimney Roof Counter Flashing

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.

Schimney roof counter flashing.

Flashing refers to the metal barrier installed where the roof meets any vertical wall including chimneys and dormers. All you need to complete this project are a few tools and a little know how. For extra protection run a bead of urethane between the step flashing and the chimney. It involves two pieces of flashing.

Not only will it prevent leaks but it will also extend the life of your chimney s masonry. In good quality work the top is bent and set 1 to 11 2 inches into a mortar joint reglet. Step 1 cut the mortar joint. Counterflashing will cover the tops of the step flashing.

Counter flashing provides an added measure of protection. The second piece the counter flashing is embedded into the masonry of the chimney. Properly flashing a chimney is important to prevent water from leaking between the chimney and roof and getting into the building s walls. Bottom the bottom cap flashing or counter flashing is a single piece of metal that covers the vertical portion of the base flashing.

The first base flashing sits around the bottom of the chimney. A piece of metal that is sealed to the chimney surface and covering the top of the step flashing to form a water tight barrier by directing water over and away from the step flashing. Bend a piece of cap flashing to fit around the top corner of the chimney and add the cap flashing across the back of the chimney. Press the flashing into the urethane to achieve a positive seal.

Flashing directs rainwater away from these junctions preventing subsequent leaks and water damage. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. Counter flashing counter flashing is placed over the step flashing parallel to the chimney. Three types of flashing are typically used on each roof.

This kit can be used for new construction or reroofing applications by a professional or do it yourself installer. Base flashing step flashing and counter flashing. Counter flashing is often used to flash chimneys. The gibraltar chimney flashing contains enough precut flashing parts to flash a typical one flue brick chimney of any size up to 32 in.

Cap flashings should be fastened to the chimney only. As you roof along a chimney alternate shingles and l shaped pieces of step flashing.