Cap flashings should be fastened to the chimney only.
Schimney roof counter flashing.
As you roof along a chimney alternate shingles and l shaped pieces of step flashing.
The second piece the counter flashing is embedded into the masonry of 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.
Flashing directs rainwater away from these junctions preventing subsequent leaks and water damage.
This kit can be used for new construction or reroofing applications by a professional or do it yourself installer.
In good quality work the top is bent and set 1 to 11 2 inches into a mortar joint reglet.
Counter flashing provides an added measure of protection.
Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in.
The gibraltar chimney flashing contains enough precut flashing parts to flash a typical one flue brick chimney of any size up to 32 in.
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.
Base flashing step flashing and counter flashing.
This chimney flashing kit provides protection from water infiltration around a chimney.
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.
Step 1 cut the mortar joint.
The first base flashing sits around the bottom of the chimney.
Not only will it prevent leaks but it will also extend the life of your chimney s masonry.
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.
Counterflashing will cover the tops of the step flashing.
Three types of flashing are typically used on each roof.
For extra protection run a bead of urethane between the step flashing and the chimney.
It involves two pieces of flashing.
Pound the flashing into the grooves and fasten with the drive in expanding anchors.
Press the flashing into the urethane to achieve a positive seal.
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.
Properly flashing a chimney is important to prevent water from leaking between the chimney and roof and getting into the building s walls.
