Flashing Around Chimney Siding

On a wall to be covered with wood cement board vinyl or metal.

Flashing around chimney siding.

It s length is the gauge lap 1 inch. 4 inches go along the width of the tile and 3 inches along the wall. I also had a chimney guy come out to clean and check the chimney and all is good. The first is called step flashing.

05 01 2011 05 17 am 5. It s an l shaped piece of lead that fits in between each tile. When it rains hard water has been coming in thru the front part of the fireplace between the chimney and the house not down the chimney and chimney has a cap. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in.

I had the flashing around the chimney checked and it received a thumbs up roof is only a year old. Flashing is a strip of metal usually aluminum about 8 inches long and bent at 90 degrees with each side at least 5 inches wide. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight.

If the shingle already has flashing on it the kickout flashing has to slip beneath it and you ll have to loosen or remove siding to do this. Proper flashing around a chimney includes two layers. 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. The stepped cover flashing goes over the top of the soakers where they go up the wall.

Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. Pound the flashing into the grooves and fasten with the drive in expanding anchors. If the sidewall is stucco or solid wood like ours and you can t open it to get flashing behind it continue the step flashing to the peak of the roof then cover the step flashing with cap flashing photo 2.

Improper siding and flashing details can lead to siding failure even with hardie plank.