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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Air Tightness Champions Fall 2025

Cheers to our newest Air Tightness Champions! Your skill, care, and dedication to energy-efficient construction are helping shape a stronger standard for airtight, high-performing homes.

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

Air Tightness Champs Spring 2023

Air Tightness Champs Winter 2023

Part 1: New Tiered Energy Code Cost Take-Down Event!

New, Small, Crazy Smart HVAC Systems for NZR Homes

Not All Heat Pumps Are Created Equal: Right-Sizing, Right Selection of ASHP (and Dual Fuel Systems)

CHBA NZ Home Program: 1,000 Homes and Counting—5+ Years of Lessons Learned

Canadian Home Builders: Carbon Counting Is Coming and So Are Tiered Energy Codes

Critical Canadian Home Building Science Part 11: The Growing Barriers NZ Builders and Communities Face With Renewables, PV, Energy Management and More

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