How To Flash A Chimney On A Metal Roof

Place the step flashing over the caulk and onto the chimney.

How to flash a chimney on a metal roof.

If you use nails to hold the overlaps you should use a nail gun instead of a hammer to drive the nails into the flashing. Apply butyl tape to the underside of the closure. Trim panels to fit around the chimney. Trace the outline of the base of the rubber boot onto the metal roof with a pencil.

Remove the rubber boot. Use metal screws or nails to hold the overlaps together then apply caulking material on the seams to seal them off. Secure a shingle over the corner flashing using a hammer and roofing nail. Place a small drop of caulk where the roof and chimney meet at the chimney corner.

Trim the flashing in the center of the rubber boot with a roofing knife so it fits snugly around the pipe. Hammer 2 roofing nails into the flashing and roof. Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit.

Slide the rubber boot over the pipe to check the fit. Place a second piece of 8 inch 20 3 cm flashing against the chimney.