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The insulation the contractor is referring to, is the insulation on the heat pump refrigerant lines. *
This is not the fiberglass or rockwool insulation that homes have to keep out the outside cold/hot. That would not normally exist between interior spaces, anyway.
It's a tubular pipe insulation that goes around the pipes. It works best if it is a vapor ...
answered Sep 14 at 19:26
Harper - Reinstate Monica
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Did you ever resolve this? Did you figure out the issue and fix it?
An 1886 basement is probably constructed from natural stone. Is it? Is there any unfinished exterior wall in the basement that you can see? The stone itself is porous and the pointing, unless it has been redone recently, is also usually leaky in a basement this age.
In heavy rain, or ...
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