How To Install Roof Flashing Around A Chimney

Use a circular saw to saw grooves into the mortar joints.

How to install roof flashing around a chimney.

According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. Pound the flashing into the grooves and fasten with the drive in expanding anchors. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit. Then spread the plastic roofing cement along the base flashing sheet underside and simply place the flashing around the base of the chimney and over the shingles.

Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. The grooves should be 1 inch 2 5 cm deep. Install the cap 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.

Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. Use mortar nails to secure the base flashing to the chimney. Now you need to install the step flashing. Bend the cap flashing around the front of the chimney.

So chances are if you ve been looking into your roof and its flashing you.