Understanding Air Barriers in Building Construction
from Walls & Ceilings 'If Walls Could Talk'
This episode of If Walls Could Talk features W&C Editor John Wyatt and Tom Harris of Tom Harris PUR Consulting as they demystify one of the most misunderstood aspects of insulation—air barriers—and explain their role in energy efficiency and building performance. They break down how air barriers are tested, how spray foam products qualify, and why proper verification and HVAC coordination are essential for achieving tight, code-compliant building envelopes.
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Frequently asked questions
How long is this episode of Walls & Ceilings 'If Walls Could Talk'?
This episode is 12 minutes long.
When was this Walls & Ceilings 'If Walls Could Talk' episode published?
This episode was published on November 13, 2025.
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