Roof Flashing Around Chimney

Proper flashing around a chimney includes two layers.

Roof flashing around chimney.

According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. The bent edge should fit around 1 corner of the chimney. Use tin snips to clip the flashing at the point where the other side of the chimney lies against the flashing. 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.

Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. One laying involves tightly playing sheet metal around the chimney edges. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. Flashing the area of a chimney with a rubber roof system is very tricky.

Pound the flashing into the grooves and fasten with the drive in expanding anchors. And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight. It is a time consuming process. The first is called step flashing.

Pan flashing should extend at least 12 inches up the roof plane. Screw the pan flashing to the roof with gasket screws. Tools you will need for roofing from amazon bostitch coil nailer https amzn to 2u1v8e2 shingle remover https amzn to 2fzu5wf roof snake https amzn to 2. 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.

Fit the flashing up against the front of the chimney. Rivet the pan flashing to the sidewall flashing. The part of the flashing that lies flush with the roof should overlap the roofing shingles. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit.

Effective roof flashing around a chimney includes two layers. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks.