How To Flash A Chimney On A Flat Roof

Set the flashing aside.

How to flash a chimney on a flat roof.

Trim panels to fit around the chimney. Panels above the chimney should be removed. Locate all of the areas around the flat roof where water can potentially enter. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit.

Flat roof flashing is also installed around the perimeter of the roof to protect the underside of shingles. Look for any type of vents as well. Hammer 2 roofing nails into the flashing and roof. Bend legs up the chimney sides about 1 inch.

It is a time consuming process. Pound the flashing into the grooves and fasten with the drive in expanding anchors. In most cases it is essential to use a skilled craftsman to wrap a layer of the rubber material into a step flashing and then counter flash with aluminum or copper. Flashing the area of a chimney with a rubber roof system is very tricky.

Place a small drop of caulk where the roof and chimney meet at the chimney corner. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. Fit an 8 inch 20 3 cm piece of square step flashing over the chimney s front corner. Place the step flashing over the caulk and onto the chimney.

This can be a source for anything from smoke to steam. Fold closure 90 degrees and. 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.