From NCMA's eNews
June 28, 2018
There are a number of options available for controlling air leakage in single wythe walls which include; solid grouting, as well as coating with a paint, sealer, or block filler. Controlling air leakage improves the energy efficiency of concrete masonry assemblies as well as occupant comfort, indoor air quality, and acoustics. For more information on preventing air leakage in concrete masonry assemblies, see TEK 6-14 Control of Air Leakage in Concrete Masonry Walls.