In this Building Science Deconstructed video, Dr. John Straube takes us through the RDH Building Science Lab in Waterloo ON, where he conducts a variety of vapor permeance tests. Dr. Straube explains the differences between vapor permeance and vapor permeability and how to set up a vapor permeance test.

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About Dr. John Straube

John Straube, Ph.D., P.Eng., is a principal at RDH Building Science Inc., where he heads forensic investigations and leads research projects in the areas of low-energy building design, building enclosure performance, hygrothermal analysis, and field monitoring of wall assemblies. He is also a prolific writer and a noted public speaker.
In addition to his work with RDH, Dr. Straube is a cross-appointed faculty member in the School of Architecture and the Department of Civil and Environmental Engineering at the University of Waterloo. Dr. Straube’s leadership as a building scientist and an educator has been recognized with multiple awards, including the Lifetime Achievement Award in Building Science Education from the National Consortium of Housing Research Centers (NCHRC) and the Professional Leadership Award from the Northeast Sustainable Energy Association (NESEA). Get the full scope of Dr. Straube’s work, awards, and contributions to the industry over at RDH.