How To Flash Around A Round Chimney On A Metal Roof

Panels above the chimney should be removed.

How to flash around a round chimney on a metal roof.

The flashing can be installed quickly and easily with kits that use rubber pipe boots. Trim panels to fit around the chimney. I have to flash a chimney where it penetrates a corrugated metal roof with ridges 8 inches o c. Hammer 2 roofing nails into the flashing and roof.

Place a small drop of caulk where the roof and chimney meet at the chimney corner. Place the step flashing over the caulk and onto the chimney. The rubber boot is trimmed to fit around the pipe and then secured to the roof with screws and sealant. 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.

The self tapping washer screw type for even better waterproofing i then used the same sealant and dispensed a thick bead around the exterior of the flashing and smeared it flat to ensure a complete seal around the metal. Fit an 8 inch 20 3 cm piece of square step flashing over the chimney s front corner. Flashing is often made of metal which is the norm on a metal roof. The evenly spaced ridges of the roofing profile present a real challenge.

Set the flashing aside. A silent movie about flashing a metal roof into a brick chimney from unioncorrugating. Bend legs up the chimney sides about 1 inch. I then pushed the flashing onto the sealant and proceeded to fasten the flashing to the roof with roofing screws.

Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. Flashing is a method of weatherproofing the base of a chimney.