Schimney Roof Counter Flashing

Flashing directs rainwater away from these junctions preventing subsequent leaks and water damage.

Schimney roof counter flashing.

The installation of counter flashing against a chimney works together with the base and step flashing to form a waterproof system for your roof. Not only will it prevent leaks but it will also extend the life of your chimney s masonry. This chimney flashing kit provides protection from water infiltration around a chimney. The second piece the counter flashing is embedded into the masonry of the chimney.

Pound the flashing into the grooves and fasten with the drive in expanding anchors. Base flashing step flashing and counter flashing. 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. In good quality work the top is bent and set 1 to 11 2 inches into a mortar joint reglet.

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 is often used to flash chimneys. The first base flashing sits around the bottom of the chimney. Press the flashing into the urethane to achieve a positive seal.

This kit can be used for new construction or reroofing applications by a professional or do it yourself installer. It involves two pieces of flashing. Counter flashing provides an added measure of protection. Step 1 cut the mortar joint.

For extra protection run a bead of urethane between the step flashing and the chimney. Counter flashing counter flashing is placed over the step flashing parallel to the chimney. Bottom the bottom cap flashing or counter flashing is a single piece of metal that covers the vertical portion of the base flashing. Cap flashings should be fastened to the chimney only.

Three types of flashing are typically used on each roof. Flashing refers to the metal barrier installed where the roof meets any vertical wall including chimneys and dormers. 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. The gibraltar chimney flashing contains enough precut flashing parts to flash a typical one flue brick chimney of any size up to 32 in.

As you roof along a chimney alternate shingles and l shaped pieces of step 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.