Pound the flashing into the grooves and fasten with the drive in expanding anchors.
How to flash a chimney on a corrugated metal roof.
A silent movie about flashing a metal roof into a brick chimney from unioncorrugating.
A different type of flashing is a chimney pipe boot.
Bend legs up the chimney sides about 1 inch.
Cut two opposing 45 degree notches into z closure to allow a 90 degree bend.
I have to flash a chimney where it penetrates a corrugated metal roof with ridges 8 inches o c.
Chimney pipes on metal roofs must be flashed in order to create a watertight seal around the pipe and prevent leaks through the roof.
Panels above the chimney should be removed.
The rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant.
This flashing is super thin and very flexible to curve around the humps in the metal roofing.
I prefer to use a dsa flashing also known as a dead soft aluminum 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.
How to install a flashing on a metal roof.
The evenly spaced ridges of the roofing profile present a real challenge.
The flashing can be installed quickly and easily with kits that use rubber pipe boots.
Trim panels to fit around the chimney.
When visualizing a flashing strategy for the down slope face of the chimney picture the plane of the roof at the top of the ridges not at the lower flat portion of the.
Following is the proceedure for installing the dsa flashing.
Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in.
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