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Cole_Robbie · March 13, 2018

Vermiculite holds water when wet, and holds air when dry. Anything that holds air can be used as insulation. It is loose-fill, so it can be poured into existing walls from the top.

March 13, 2018	#59
Cole_Robbie Tomatovillian™ Join Date: Jun 2012 Location: Illinois, zone 6 Posts: 8,407	Vermiculite holds water when wet, and holds air when dry. Anything that holds air can be used as insulation. It is loose-fill, so it can be poured into existing walls from the top.