
Is Your Flashing Failing? Preventing Moisture Traps in Stone Facades
This technical analysis evaluates flashing and drainage integration as the primary defense against substrate rot and structural failure in stone facades. We examine the mechanics of thermal expansion mismatch between metal and stone, detailing how CNC-machined drip grooves and 450mm-spaced weep holes facilitate essential cavity ventilation. The report prioritizes ASTM-standard freeze-thaw resistant minerals and dual-layer Weather-Resistant Barriers (WRB) to mitigate hydrostatic pressure and efflorescence. For B2B stakeholders, these protocols ensure long-term architectural integrity and 95% hue uniformity, preventing the expensive liability claims associated with moisture entrapment.







