Flashing Between Chimney And Siding

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

Flashing between chimney and siding.

The intersection between a roof and a sidewall can be a rot problem waiting to happen. Many homes have a transition point somewhere up the wall where brick gives way to some type of siding whether it s aluminum panels or cedar shingles. And more often than not the culprit is the flashing the sheet metal that keeps the intersection between the chimney and roof watertight. 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.

Nail j channel for vinyl or metal siding onto the flashing. But the j cap also creates a consistent line. Sections of l shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. Repair of a water damaged framed chimney using low maintenance pvc corner boards and fiber cement siding.

Using a metal j flashing between these types of transitions provides a barrier between siding and transitions that protects against water intrusion. Metal flashing materials are used as transition pieces between the roof and chimney structures. Proper flashing around a chimney includes two layers. 1 what is the generally recognized best practice for flashing sealing this joint.

The first is called step flashing. The solution to rotting sidewalls is a small. I frequently see the sheathing and or housewrap where siding butts into a chimney. Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot.

Leave a 1 4 inch gap between the step flashing and wood siding or cement board. How to use flashing between brick siding.