Apply butyl tape to the underside of the closure.
How to flash a chimney on a shingle roof.
Panels above the chimney should be removed.
Flashing the area of a chimney with a rubber roof system is very tricky.
Fold closure 90 degrees and.
Cut two opposing 45 degree notches into z closure to allow a 90 degree bend.
It is a time consuming process.
The flashing should partially overlap the shingle that covers the first piece of flashing.
Nail it to the roof along the top edge.
Place a second piece of 8 inch 20 3 cm flashing against the chimney.
Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5.
Bend legs up the chimney sides about 1 inch.
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Secure a shingle over the corner flashing using a hammer and roofing nail.
Galvanized roofing nails about every 6 in.
Hammer 2 roofing nails into the flashing and roof.
Slide the prebent and soldered chimney saddle into place behind the chimney.
Along the edges or closer if necessary to flatten the metal.
Trim panels to fit around the chimney.