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Spray foam between two exterior brick walls?

sulli470 | Posted in Green Building Techniques on

In climate zone 5A, I have a setting where there are two buildings that have 3 inches of space between them. Both of these are brick walls. Is it possible to use spray foam or some other type of insulation between these walls to stop heat loss?

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Replies

  1. DC_Contrarian | | #1

    From an energy perspective I would be looking into making that space part of the interior -- seal the perimeter.

    However, at least here, doing so would violate zoning.

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