Here’s the dirt on a prefabricated plastic earth sheltered home design you can … – Treehugger


Treehugger

Here's the dirt on a prefabricated plastic earth sheltered home design you can ...
Treehugger
However, the thermal character of the mass of the Earth is quite different from the materials designed and used principally for the resistance to the transfer of heat (R value) such as polystyrene or polyurethane foam. When changing from soil to a less ...

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