How To Install Roof Flashing Around A Chimney

The grooves should be 1 inch 2 5 cm deep.

How to install roof flashing around a chimney.

Saw as high as the height of the cap flashing. Use a circular saw to saw grooves into the mortar joints. Now you need to install the 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.

A do it yourself video detailing step by step how to flash a chimney with our metal roofing chimney kit. Make sure you leave a gap of two inches at the base for the water to drain. Fit the front cap flashing around the front of the chimney. Use mortar nails to secure the base flashing to the chimney.

Pound the flashing into the grooves and fasten with the drive in expanding anchors. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. So chances are if you ve been looking into your roof and its flashing you. Install the cap flashing.

According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse.