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In our last episode, Dr. John talked about How Heat Moves Through Homes and why radiant barriers work better in outer space...<br/>
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                    To avoid moisture problems in walls, think about the permeability of all the wall’s components — not just the “designated” vapor retarder        ...<br/>
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                    Solar degradation of lignin at wood’s surface is the single most important factor affecting the weathering of wood and subsequent paint adhesion ...<br/>
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                    Space-age radiant barriers, like ceramic paints, work great in the vacuum of outer space, but here on Earth, heat moves by conduction,...<br/>
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                    The white powder on the surface of brick, block, and mortar between rocks is water and salt attacking these porous materials. In new construction...<br/>
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                    Air leaks are a big source of moisture problems that lead to bugs, mold, and rot in homes        
        


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                    GBA is the engine behind the building science half of NAHB&#39;s new certification        
        


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                    When Monica from New Jersey learned that her solar installer plans to drill 54 holes in her south roof, she wondered whether she should worry...<br/>
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                    Heat recovery ventilators bring fresh air into a house while exhausting stale air. Builders pull stale bathroom air through HRVs all the time —...<br/>
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                    In the Q&#38;A forum, Nick from Louisiana asked why these icicles appeared after he spray foamed the underside of his roof.        
        


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