Flashing Around Chimney In Attic

If you see white stains on the brick inside the home you might have an issue with leaks.

Flashing around chimney in attic. Often ponding water will rust a hole in the simple flashing found on most chimneys. Code requires a chimney have a cricket if it is thirty inches or wider. Apply a thick bead of the high temperature caulk around the joint where the flue enters the attic. The attic allows you to see prior or current leak activity.

How to repair leaky chimney flashing. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. The other way is through the attic space. Flashing prevents water from leaking down the chimney into the attic.

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. This is an area that often tells the story the best. Weather and oxidization are the most common culprits for flashing deterioration but it is possible that flashing can just simply come loose. 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. 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. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. Chimney was leaking fixed with 26 gauge galvanized.

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. 8 cut a piece of flashing to measure the circumference of the flue plus 6 inches. 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.