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Weyerhaeuser Zonolite Vermiculite Doors: W.R. Grace Libby Asbestos in 35 Million Homes
Yvette Abrego
February 28, 2026
Weyerhaeuser doors from Marshfield, Wisconsin used W.R. Grace Libby mine vermiculite — contaminated with tremolite asbestos. Zonolite insulation is in 35 million homes. Compensation options explained.
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