Building Science Blog

Discover relevant and practical information at the leading edge of high performance residential construction, created and curated by industry training experts and real contractors. Whether you need building science research or construction details and advice, you’ll find it here – anytime you need it.

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March 23, 2026

Air Tightness Champions Winter 2026

Congratulations to our newest Air Tightness Champions! Your precision, craftsmanship, and commitment to performance are driving better-built, more energy-efficient homes.

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The Mechanisms and Measurement of Air Leakage in Houses

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WUFI on the Side: A Quick Intro to Hygrothermal Modeling of Standard Walls and Why Code Walls With 6 Mil Poly VB May Be the Riskiest for Builders

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Climate Adaptation & Mitigation Is Coming to a Building Code Near You

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Air Tightness Champs Summer 2024

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Is It Time for Another Look at Insulated Concrete Forms?

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Sizing Heat Pumps

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NBC 2025 Proposes New, Tiered CARBON EMISSIONS Regulations for Homes and Buildings: What Does This Mean for New Canadian Homes?

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Airtightness Testing in Large Buildings

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Sizing & Selecting ASHPs for Canadian Homes & Cold Climates: There's an App for That!

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