Walls & Ceilings 'If Walls Could Talk'

What R-Value Really Means


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Tom Harris discusses how R-value, the standard metric for insulation performance, only measures conductive heat transfer under controlled lab conditions while ignoring convection, radiation, air movement, and moisture. He highlights research and the new A-Value study, which aims to measure full wall assembly performance more accurately in real-world conditions.
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Walls & Ceilings 'If Walls Could Talk'By www.wconline.com