Airtightness Testing in Large Buildings

Demand for more airtight large buildings is growing. Discover whether airtightness testing in larger buildings is just a matter of scaling up the procedures for a family home or if there are significant differences.

Large Building Air Tightness Testing: Lessons Learned in a Swiftly Growing Industry​

Air Barriers in Multi-Family Low Rise Housing: Are We Placing Air Barriers in the RIGHT Walls?

A Better ACH Metric for Small or Attached Canadian Homes—NLR vs ACH

Critical Canadian Home Building Science Part 7: The Great Canadian VAPOUR BARRIER controversy.

Do we still need "Vapour Barriers" made of polyethylene in high-performance walls with continuous insulation and good air barrier detailing? The industry and codes continue to struggle with this question.

Airtightness: Do we really need to know the ACH?

A look behind the science of airtightness measurements and why this simple test is critical if you want to build high-performance homes. Learn the history, lessons learned, what are the risks of not knowing the numbers and what you can avoid if you do.