Share 'Historic Windows: Air/Moisture Infiltration'
Historic windows almost invariably present two specific challenges to home energy efficiency: 1) Air & moisture infiltration/exfiltration 2) UV & thermal transfer Assuming that sashes are in good shape and weather tight, infiltration/exfiltration and moisture are often still problematic because sashes often don't fit tightly; for example, if the window frame is not completely square, or b…
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