Flashing prevents water from leaking down the chimney into the attic.
Flashing around chimney in attic.
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.
Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in.
The bottom base flashing is made of a single piece of metal extending 3 to 6 inches down over the shingles that already have been installed and 12 inches some say less up the bottom face of the chimney.
Chimney was leaking fixed with 26 gauge galvanized.
Apply a thick bead of the high temperature caulk around the joint where the flue enters the attic.
This is an area that often tells the story the best.
Often ponding water will rust a hole in the simple flashing found on most chimneys.
Weather and oxidization are the most common culprits for flashing deterioration but it is possible that flashing can just simply come loose.
If you see water entry in the attic on the uphill side of the chimney we know a chimney cricket is needed so water is not ponding in this area.
The material is usually aluminum or galvanized steel and depending on the type of roof you have is most likely in the valleys around the chimney and even around dormer windows or skylights.
If you see white stains on the brick inside the home you might have an issue with leaks.
According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse.
The attic allows you to see prior or current leak activity.
Walking on the roof helps the inspector feel how much flex is in the roof sheathing particularly in key areas such as valleys around chimneys and around roof penetrations.
8 cut a piece of flashing to measure the circumference of the flue plus 6 inches.
The other way is through the attic space.
4 chimney flashing causes leaks the flashing is what keeps water from going into the place where the brick structure comes through the roof or otherwise comes close to the roof there s a fairly large gap between the bricks and the roof and water will pour through that hole if it s not sealed up.
How to repair leaky chimney flashing.
