Roofing Flashing

Description:

Most flashing is made of galvanized sheet metal. Aluminum flashing is made for use
with aluminum siding and roofing materials and, because it is easy to bend, fordo-it-yourself installation. Copper flashing is custom fabricated for use withcopper roofs and some specialty applications.Continuous flashing protects the joint between a vertical wall and a sloped roof.
Vent pipe flashings fit over flues and pipes that protrude through the roof. Made
of sheet metal, they're cone-shaped with a flange at the base; this flange is worked
into the shingles as roofing is applied.Chimney flashing is applied around the base of a chimney in several parts: continuous
flashing along the bottom, step flashing up the sides and a saddle flashingat the top. Cap flashing, mortared or caulked into the chimney, laps over the top
edges of the other flashings to prevent water from running in behind them.Z-flashing seals the horizontal seams between plywood or hardboard siding panels.
Valley flashing protects the valleys between two meeting roof planes. On most roofs,
this W-shaped channel is placed over the top of building felt before the finished
roof is installed.Drip caps are L- or Z-shaped metal flashings that flash frames above windows and
doors.Drip edges prevent water from seeping under roofing along the edges at rakes and
eaves. They're applied under roofing felt along eaves and over roofing felt along
rakes.Skylights often have their own, integral flashing. Otherwise, their curbs are flashed
with continuous flashing along the base, step flashing up the sides and saddleflashing across the top.Step flashing is fitted into each course of shingles to provide protection along
the side walls of dormers, skylights and chimneys.

Place of Origin:	China