Because it's a renovation, there's an opportunity to get access to the interior spaces where air leaks can degrade air quality and leak conditioned air. Seen here is the penetration between the kitchen of one apartment and a downstairs neighbor. Because air flows between the apartments, residents complain about odors and poor indoor air quality. Holes and gaps from pipes or other penetrations will be filled with foam or other air-sealing material.
May 23, 2011 4:00 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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