White Paper: Mineral Wool Insulation is Not Green, Sustainable or Environmentally Friendly

By G.A. Perry, Architect LEED AP

Mineral wool is made from stone melted in furnaces. Stone is not a recycled or sustainable material. It is extremely energy-intensive to produce and has high embodied energy. The manufacturing process involves on-site fuel combustion using gas and coal in furnaces, boilers, and dryers. The stone must be melted at very high temperatures and the furnace run 24 hours a day, every day of the year.

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