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The Cleanest Walls

Drywall, plasterboard, wallboard—whatever you call it, the substance that covers billions of square feet of American homes hasn’t changed since its invention in 1917. Dry-
wall factories still roast ground-up gypsum rock in 500°F kilns, spewing out 20 billion pounds of greenhouse gases a year. So Serious Materials created EcoRock: a drywall that congeals without heat, uses recycled materials that don’t require mining, and holds up even better.