Last blog, we introduced a four-part series called, “Proper Use Of Membrane Air Barriers in Concrete Masonry Walls Covered with Drained Exterior Cladding.”
Part one discusses how building codes don’t require a water-resistive barrier (WRB) on concrete masonry wall (CMU) wall construction projects. But since most institutional projects – schools, museums and government buildings – use these assemblies, design professionals concerned with energy efficiency and long-term building viability should consider specifying them.
In part two, we discuss WRB placement and why wall assemblies benefit from installing membranes on the exterior face of the CMU. Go here to see how exterior membrane placement can benefit your next CMU design project.