How This Fiber Is Helping Make One World Trade Center Safer

The legend behind mineral wool insulation reaches back centuries — to a discovery made during volcanic eruptions on the Hawaiian Islands. “When the air hit some of the lava materials, they formed into fibers and the natives realized they could insulate their huts with them,” explains Angie Ogino, technical services leader for Thermafiber Insolutions®, the fire protection engineering division at Owens Corning. Today, Owens Corning Thermafiber® mineral wool insulation is created from slag, a byproduct of the steel industry. It’s melted down to 2,600 degrees Fahrenheit and then spun into fibers. The process yields a fire-resistant material that can withstand temperatures above 2,000 degrees Fahrenheit. Mineral Wool Insulation Applications Thermafiber® mineral wool insulation can be used in a variety of applications: ·as thermal insulation for the required R-value that keeps buildings warm in winter and cool in summer, it offers an R-value of up to 4.3 per inch of thickness; ·as acoustical material for commercial, residential and industrial applications, to isolate and control noisy equipment in mechanical rooms or control sound between treatment or patient rooms in a hospital; ·for construction joints to fill and protect the void between fire-rated structures against the spread of fire. ...
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