Roof Flashing Around Chimney

Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney.

Roof flashing around chimney.

Rivet the pan flashing to the sidewall flashing. The bent edge should fit around 1 corner of the chimney. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. It is a time consuming process.

Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. 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. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit. Pound the flashing into the grooves and fasten with the drive in expanding anchors.

Flashing the area of a chimney with a rubber roof system is very tricky. Use tin snips to clip the flashing at the point where the other side of the chimney lies against the flashing. Fit the flashing up against the front of the chimney. The l shaped flashing that protects the joint between a roof and a chimney can sometimes pull away from the chimney especially if it s only held in place by roofing cement.

Screw the pan flashing to the roof with gasket screws. Cut and fold pan flashing to fold up the back of the chimney and over the sidewall trim. And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight. Effective roof flashing around a chimney includes two layers.

The first is called step flashing. 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. One laying involves tightly playing sheet metal around the chimney edges. The part of the flashing that lies flush with the roof should overlap the roofing shingles.

Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. Proper flashing around a chimney includes two layers.