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A properly installed chimney flashing system is vital for protecting your home from costly water damage. Understanding the different types of flashing, as illustrated in the chimney flashing diagrams provided, and the importance of proper installation is crucial for maintaining a leak-free roof.
The use of flashing in chimneys presents some unique construction details. The three primary areas of concern are: the base of the chimney, the intersection of the chim-ney with the roof, and the chimney crown. The Base. The base of the chimney is constructed in much the same manner as a brick cavity wall.
3. Install the End Wall Flashing, trim and notch the flashing to extend past the chimney on the roof, and bend the sides up the chimney. Fasten to the roof. Apply a quality butyl sealant at each corner and up the roof a minimum of 8”. 4. Start the Step Flashing over the End Wall Flashing and apply a quality butyl sealant on each edge of the ...
chimney flashing details (steps 5 thru 8) met-tile plywood 06/16/2020 n.t.s. step #5 step #6 step #7 step #8
22 Φεβ 2023 · Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles (Photos 4 and 5). Slightly flatten the step flashing before you nail it in to ensure a tighter, spring-tensioned fit against the chimney.
Chimney Flashing. The apron flashing along the downslope of the chimney wraps around the corners of the chimney and is itself overlapped by step-flashing coming down each side. The cricket on the upslope side is also complex; it wraps corners and overlaps step-flashing below.
LEAKPROOF FLASHINGS. FOR. MASONRY CHIMNEYS. Don’t rely on mechanical fasteners and caulk: Embed the counterflashing in a groove in the masonry. A properly flashed chimney is protected by the overlap between the base flashing and the counterflashing.
