Installing through-wall flashing correctly, particularly on a sloped roof-to-wall intersection, involves a detailed process and requires close coordination between the roofer and the mason. As painstaking as this can be, it’s the only way to prevent water from seeping into the living space below.

In the upcoming July 2015 issue of JLC, forensic architect Harrison McCampbell shares his experience investigating wall failures, and explains step-by-step how to detail brick veneer to avoid moisture problems. The slideshow here offers a preview of Harrison’s recommendations for what to do (and not do!) when flashing a sloped roof intersection, be it at a sidewall, parapet, or chimney.