Waterproof Your Windows With Liquid Flashing
Learn how to install liquid-applied flashing to thoroughly seal a rough opening while also leaving a path for water to escape when it does get in.
Synopsis: Carpenter Steve Pink details his company’s method of applying liquid flashing to windows to stop water intrusion using Prosoco’s R-Guard system of Joint & Seam Filler, FastFlash, and AirDam. Through a series of photographs, he explains how to prep the rough openings, apply the liquid flashing, seal the transition, install the windows, and then seal the inside for an air- and watertight flashing system.
In 2010 when I joined Hammer & Hand, a well-established residential construction firm in Portland, Ore., building science was improving, both at the company and across the industry. In the rainy Northwest, water intrusion is a particular problem. According to the Oregon Contractor’s Reference Manual, the primary cause of defect claims and callbacks is moisture damage and mold due to the failure of the exterior envelope. While Hammer & Hand had fewer callbacks and claims than most, our former co-owner—and self-proclaimed building-science geek—Sam…