Stories From the Field

Post: Unique Flashing Detail

Monday March 21, 2016

Surface-applied adhesive flashing around four PVC exhaust tubes on a masonry wall

We use flashings to stop water from infiltrating masonry walls.

Seasoned AAA-1 Masonry project manager, Brent, recently photographed this flashing "detail" observed on a client's newer masonry wall. Although the intentions of the original installer may have been sincere, this is a pitiful attempt to prevent water from from penetrating into the wall cavity through the gaps between the round white PVC tubes and the bricks. Frankly, it looks like something my 7-year old might have constructed during a school art class.

The proper method of sealing gaps between wall penetrations (e.g., vents, electrical conduit, etc.) requires the use of primer, backer rod or bond-breaker tape, and high-quality caulk (not surface-applied adhesive as in seen in the photo).

If this condition were to go uncorrected for any period of time, the flashing would begin to peel off and serious water infiltration would result, likely evident in the form of damaged drywall, electrical shorts, rotted floor joists and/or warped floors.

If you would like one of AAA-1 Masonry & Tuckpointing's seasoned project managers to inspect your home for damage (or ridiculous workmanship like what Brent found here), please do not hesitate to call us at (773) 622-7300. We are here to help!

Thank you for the opportunity to be of service.


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