Tag Archives: Building

Efflorescence: That Annoying White Stuff on Masonry Walls

Introduction You’ve seen it on a lot of buildings, perhaps even at your Condominium Corporation. That white powdery substance is called efflorescence, it’s a deposit of soluble salts which is most obvious during the winter, but may also be observed throughout the year following heavy rains and sudden drops in temperature. Often, it is apparent […]