How To Install Roof Flashing Around A Chimney

Pound the flashing into the grooves and fasten with the drive in expanding anchors.

How to install roof flashing around a chimney.

Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. The grooves should be 1 inch 2 5 cm deep. Use mortar nails to secure the base flashing to the chimney. 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.

So chances are if you ve been looking into your roof and its flashing you. Bend the cap flashing around the front of the chimney. Saw as high as the height of the cap flashing. Now you need to install the step flashing.

Make sure you leave a gap of two inches at the base for the water to drain. A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit. 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. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse.

Fit the front cap flashing around the front of the chimney.