Vinyl Siding Chimney Flashing

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.

Vinyl siding chimney flashing.

The water runs down the siding and at the bottom of the first row of vinyl siding it drips off and contacts the metal flashing as it runs across the top of the fascia board. This is why there are drain holes at the bottom of the laps to let it back out. 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. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in.

Then an ice water shield underlayment must be installed around the chimney. Replacement and resurfacing can be expensive which makes cladding a masonry chimney with siding an attractive option in some instances. To properly re flash a chimney with vinyl siding you must remove everything around the chimney including the siding and any old metal flashing that might be installed. The water then runs off the flashing because it can t go up the flashing as it extends up behind the siding.

Roof chimney leak repair. Nail j channel for vinyl or metal siding onto the flashing. Gable ends are their own can of worms as reguards uphill chimney flashings. Many residential chimneys are finished with stone or brick to help insulate them and provide a traditional appearance.

Wall flashing where siding meets a chimney originally posted by michael thomas. Leave a 1 4 inch gap between the step flashing and wood siding or cement board. Pound the flashing into the grooves and fasten with the drive in expanding anchors. On a vinyl job moisture gains access to the back side of the vinyl at all sorts of points.

Follow the directions of the siding manufacturer for.