Proper Chimney Flashing Metal Roof
The second layer of metal usually consisting of either lead or copper.
Proper chimney flashing metal roof. Secure a shingle over the corner flashing using a hammer and roofing nail. Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. Hammer 2 roofing nails into the flashing and roof. These work better on smaller round chimneys and may be ideal for a stove chimney in a metal roof.
Next comes the counterflashing. A different type of flashing is a chimney pipe boot. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. Flashing provides the extra protection these spots need.
Next comes the counterflashing. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Most flashing is made of galvanized metal but diy ers may prefer aluminum flashing because it s easier to bend. Proper flashing around a chimney includes two layers.
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. Place the step flashing over the caulk and onto the chimney. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. L shaped aluminum are woven into the shingle courses and lapped up the side of the chimney.
Place a second piece of 8 inch 20 3 cm flashing against the chimney. The flashing should partially overlap the shingle that covers the first piece of flashing. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit. A silent movie about flashing a metal roof into a brick chimney from unioncorrugating.
These problem areas include the edges of skylights and chimneys soil stacks vent fans and roof valleys as well as the intersection of the roof deck and dormer walls. Pound the flashing into the grooves and fasten with the drive in expanding anchors. Proper flashing around a chimney includes two layers. Bend legs up the chimney sides about 1 inch.
Panels above the chimney should be removed. Drip edge metal valley flashing dormer chimney and kick out flashing shed water away from the connections between roofs walls chimneys and other building assemblies this collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs. Trim panels to fit around the chimney. The first is called step flashing.
Open valleys have metal flashing to protect this critical area of the roof. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.