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James Hardie Industries plc is a global building materials company and the largest global manufacturer of fibre cement products. Headquartered in Ireland, it is a dual-listed company, being listed on the Australian and New York Stock Exchanges.
Research and testing of the technology was done primarily by Forest Products Laboratory (FPL) in Madison, Wisconsin, as part of a U.S. Forest Service attempt to conserve forest resources. In 1937, a small stressed-skin house was constructed and garnered enough attention to bring in First Lady Eleanor Roosevelt to dedicate the house.
Gypsum panel with constrained-layer damping. Constrained-layer damping is a mechanical engineering technique to suppress vibrations. Typically a viscoelastic or other damping material, is sandwiched between two sheets of stiff materials that lack sufficient damping by themselves.
Cement board is composed of aggregated Portland cement with a glass-fiber mesh on the surfaces. This 5 ⁄ 16 inch (7.9 mm) thick cement board is designed as an underlayment for tile floors.
It was founded in 2000 and was based in Fresno, California. Pinnacle acquired the patent rights Dragon Skin from Armor Technology Corp in 2000. [9] In addition to Dragon Skin body armor, they also produced reinforced materials for use on vehicles and buildings, along with related training materials.