These customers floors were too cold. Their rim joist (the floor's framing system) was barely protected from air passing through the gaps between the wood because there was just a thin piece of fiberglass stuck up there. This left the basement and the floors above it to always feel colder than the rest of the house. Dr. Energy Saver has a simple solution to this prevelant issue, we spray over 2" of closed cellspray foam over the joist to ensure that no air can move between the boards.
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