zonolite

Zonolite Insulation

The History of Zonolite Insulation Zonolite in an attic The history of Zonolite Insulation began when E.N. Alley launched his vermiculite mining business in Libby, Montana. Alley created the Zonolite brand as a commercial name for the mineral, and more than 40 years later, in 1963, his business was acquired by W.R. Grace and Company, …

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