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Air seal the floor above an unconditioned basement or crawlspace and make sure floor insulation is in full contact with the underside of the subfloor.
Air seal the floor above an unconditioned basement or crawlspace and make sure floor insulation is in full contact with the underside of the subfloor.
Air seal the floor above an unconditioned basement or crawlspace and make sure floor insulation is in full contact with the underside of the subfloor.
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Infrared image of a rim joist
Infrared image of a rim joist
Infrared image of a rim joist
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Right - Air barrier is present and installed between the floor system and unconditioned space.
Right - Air barrier is present and installed between the floor system and unconditioned space.
Right - Air barrier is present and installed between the floor system and unconditioned space.
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Right - Sub-floor insulation is properly installed and supported.
Right - Sub-floor insulation is properly installed and supported.
Right - Sub-floor insulation is properly installed and supported.
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Right – Penetrations through the floor are air sealed
Right – Penetrations through the floor are air sealed
Right – Penetrations through the floor are air sealed
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The polyethylene ground cover in the crawl space is lapped up sides of piers to posts to provide a continuous air and vapor barrier
The polyethylene ground cover in the crawl space is lapped up sides of piers to posts to provide a continuous air and vapor barrier
The polyethylene ground cover in the crawl space is lapped up sides of piers to posts to provide a continuous air and vapor barrier
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Wrong - No air barrier is present between the floor system and unconditioned space.
Wrong - No air barrier is present between the floor system and unconditioned space.
Wrong - No air barrier is present between the floor system and unconditioned space.
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Wrong - Sub-floor insulation has gaps, compression, and misalignment.
Wrong - Sub-floor insulation has gaps, compression, and misalignment.
Wrong - Sub-floor insulation has gaps, compression, and misalignment.
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Wrong - Sub-floor insulation is not properly installed or supported.
Wrong - Sub-floor insulation is not properly installed or supported.
Wrong - Sub-floor insulation is not properly installed or supported.
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Wrong - This batt insulation is not aligned with the subfloor and joists.
Wrong - This batt insulation is not aligned with the subfloor and joists.
Wrong - This batt insulation is not aligned with the subfloor and joists.
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Wrong – Penetration through the floor is not air sealed
Wrong – Penetration through the floor is not air sealed
Wrong – Penetration through the floor is not air sealed
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