Maintaining continuity: Keeping air/moisture barriers continuous at movement conditions

All images courtesy Sto Corp. by John ChamberlinAt this point, most design/construction professionals have a pretty good understanding of the need for well-designed air and moisture control layers in wall assemblies. Water-resistive barriers (WRBs) have been in use for decades; in more recent years, a number of new systems have popped up that combine these […]

Design considerations for building movements caused by volume change – Page 3 of 4

Figure 6: Expansion joint seal working in both shear and tension with failures at shear areas and transitions. Problem #3: Improper building expansion joint configuration Not to be overlooked, expansion joint configuration is equally important to accommodating building movements. Expansion joint seals are typically designed to work in tension across the joint width. As shown […]

Understanding precured silicone sealants: The secret to leak-free claddings – Page 2 of 3

This photo shows a wide strip of precured sealant being installed atop a metal building’s roof expansion joint. Exterior insulation and finish systemsUsing precured seals with EIFS panels that have stucco or other-textured finish coats can have important dividends. Roy Conrad, a project manager with Gorman Moisture Protection Inc. of El Paso, Texas, has been […]