How To Install Roof Flashing Around A Chimney

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

How to install roof flashing around a chimney.

Now you need to install the step flashing. The grooves should be 1 inch 2 5 cm deep. Use mortar nails to secure the base flashing to the chimney. Make sure you leave a gap of two inches at the base for the water to drain.

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. Install the cap flashing. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. 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 front cap flashing around the front of the chimney. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. Use a circular saw to saw grooves into the mortar joints. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse.

Bend the cap flashing around the front of the chimney.