Your chimney’s flashing is your property’s to start with line of defense in opposition to drinking water destruction, preventing leaks where your chimney meets the roof. When this crucial barrier fails, you’re going through likely structural hurt, mildew expansion and expensive repairs Otherwise resolved promptly.
Disregarding concerns like rust, gaps, or unfastened flashing may result in greater problems in the future. Believe in area pros to evaluate and perform chimney flashing repair the right way to safeguard your roof’s integrity.
Measure and cut L-formed steel flashing parts so just one leg extends up the chimney wall (at the least 4 inches) and the other lies flat over the roof. Start off at the bottom of the chimney and do the job upward, with every bit overlapping the prior one by no less than 2 inches.
Chimney flashing may be the watertight seal that connects your chimney to the roof, typically consisting of two major parts: phase flashing and counter flashing. Phase flashing interlocks with roof shingles although counter flashing is embedded to the chimney’s mortar joints, making a comprehensive barrier in opposition to drinking water.
Insert the bent edge of the counter flashing into this groove and secure it with masonry screws with rubber washers. For prefabricated chimneys, use specialised fasteners advisable through the manufacturer. The lower edge really should continue to be unsealed to allow drainage.
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Counter flashing ought to lengthen no less than two inches more than the phase flashing to build an effective water barrier. Minimize your counter flashing parts to the width of one's chimney sides, making it possible for for corner overlaps.
The cost of chimney flashing repair will vary depending upon the extent on the injury and the type of elements necessary.
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Just after taking away the outdated flashing, it’s time to put in new stage flashing that should website correctly guard your chimney-roof junction. This vital phase involves precision and attention to element to make certain a watertight seal.
Typical signals incorporate water stains on ceilings or partitions near the chimney, obvious rust or gaps throughout the flashing, or roof leaks throughout major rain. An experienced inspection can verify The difficulty.