Achieving airtightness is critical for maintaining a building’s performance. But reaching a higher level of airtightness depends a great deal on the selection of an air barrier membrane and system components that have the right permeance rating.

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Dr. John Straube talks airtightness.

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John Straube, Ph.D., P.Eng., is a Principal at RDH Building Science, 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.