Ecovative Mushroom Insulation
Sam Kaplan
Ecovative makes its Mushroom Insulation by fusing fungal mycelium with corn stalks. The resultant material has the upsides of foam board insulation—an R-value of 3.8, Class-A fire rating, and competitive price—but none of the petrochemicals, VOCs, or fire retardants. Upon demolition, it can simply be composted. $0.25 per board foot
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