Flashing A Metal Roof Around A Chimney

The roofing the cricket valley and the chimney base flashing all come together at the chimney corners and must overlap in the proper order.

Flashing a metal roof around a chimney.

You ll need one for. Apply butyl tape to the underside of the closure. Set the flashing aside. Panels above the chimney should be removed.

Hammer 2 roofing nails into the flashing and. More than the width of the chimney. Prebent step flashing 8 x 8 in. When the chimney penetrates the roof below the ridge use a cricket on the up slope side to divert water around the chimney.

Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. Place the step flashing over the caulk and onto the chimney. Some lumberyards stock a dormer flashing. Place a small drop of caulk where the roof and chimney meet at the chimney corner.

Fold closure 90 degrees and. Trim panels to fit around the chimney. Order about 12 in. Fit an 8 inch 20 3 cm piece of square step flashing over the chimney s front corner.

Bend legs up the chimney sides about 1 inch.