Chimney Siding Flashing

Flashing materials should be inspected periodically and maintained when needed to prevent leaking problems into the home interior.

Chimney siding flashing.

2 aside from tearing off the siding and correcting it from the beginning what do you recommend as a solution when you see the underlying structure at this joint. The first is called step flashing. Repair of a water damaged framed chimney using low maintenance pvc corner boards and fiber cement siding. 1 what is the generally recognized best practice for flashing sealing this joint.

Copper is one of the best metal materials to use for exterior flashing because it is durable and malleable. Start at the front of the chimney and mark the third mortar joint up from the roof. The next step is to mark and cut the grooves in the chimney s mortar joints to accept the cap flashing. Seal the cap flashing by caulking along the mortar joint with polyurethane caulk.

Extend this mark around both front corners about 6 in. Vinyl siding on chimneys. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. I frequently see the sheathing and or housewrap where siding butts into a chimney.

Metal flashing materials are used as transition pieces between the roof and chimney structures. Improper siding and flashing details can lead to siding failure even with hardie plank. It s not always possible to remove the old flashing in these spots. And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight.

Anyplace where the roof plane meets a vertical wall such as a dormer a chimney or a split level roof flashing is necessary. The siding on the chimney and back side of these homes were in disrepair.