Showing results 1 - 9 of 9
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Floor cavity air pressure is measured by placing a tube into the floor cavity through a small drilled hole
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Floor cavity pressure is measured by inserting a tube into the floor cavity using an extension pole
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Infrared imaging shows cold conditioned air pouring out of the open floor cavities under this attic kneewall into the hot unconditioned attic
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Limited attic access may make it necessary to use a bore scope when inspecting for missing air barriers and insulation in existing buildings.
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Right-- IR photo shows how effectively spray foam insulated/air sealed attic kneewall and the floor cavities under kneewall
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The attic kneewall and the open floor cavities under kneewall are both sealed and insulated in one step with spray foam insulation
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The floor cavities under this attic kneewall are completely open to the unconditioned attic space and a prime target for wind washing
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This kneewall has no top plate and the resulting gap provides a wide-open pathway for air and vapor to travel between the living space and the attic
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Wrong - This IR image of a second-floor landing shows that attic air is flowing far into the interstitial floor cavity of the second-floor landing