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Attic & Insulation Articles
Attic ventilation, moisture, condensation, and air sealing in Portland and SW Washington homes, explained by a Certified Master Inspector®.
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Night Sky Radiational Cooling: Why Clear Winter Nights Wet Portland Attics
On clear Pacific Northwest nights, roof sheathing can cool below the dew point and collect moisture, even in well-vented attics.
Attic & Insulation
The Hidden Air Leaks Behind Attic Moisture: Where They Are and How to Find Them
Attic moisture in Portland homes usually starts with air leaking up from the living space, not too few...
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Attic & Insulation
Attic Moisture and Condensation: The Modern Roof Failure Nobody Expects
Attic moisture is destroying modern roofs in the Portland area. Learn why today's tightly built homes trap condensation...
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