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Owens Corning is an American company that develops and produces insulation, roofing, and fiberglass composites and related products. It is the world's largest manufacturer of fiberglass composites. [3] [4] It was formed in 1935 as a partnership between two major American glassworks, Corning Glass Works and Owens-Illinois. The company employs ...
3.0: 24 Fiberglass batts [9] 2.54: 1 0.55–0.76: 3.1–4.3: 22–30 Cotton batts (blue jean insulation) [10] [11] 2.54: 1 0.65: 3.7: 26 Molded expanded polystyrene (EPS) low-density 2.54: 1 0.65: 3.85: 26 Sheep's wool batt [12] 2.54: 1 0.65: 3.7: 26 Icynene spray [7] [13] 2.54: 1 0.63: 3.6: 25 Open-cell polyurethane spray foam 2.54: 1 0.63: 3. ...
The application of thermal pipe insulation introduces thermal resistance and reduces the heat flow. Thicknesses of thermal pipe insulation used for saving energy vary, but as a general rule, pipes operating at more-extreme temperatures exhibit a greater heat flow and larger thicknesses are applied due to the greater potential savings. [3]
Glass fibers have been produced for centuries, but the earliest patent was awarded to the Prussian inventor Hermann Hammesfahr (1845–1914) in the U.S. in 1880. [3] [4]Mass production of glass strands was accidentally discovered in 1932 when Games Slayter, a researcher at Owens-Illinois, directed a jet of compressed air at a stream of molten glass and produced fibers.
Orangeburg pipe (also known as "fiber conduit", "bituminous fiber pipe" or "Bermico" or "sand pipe") is bituminized fiber pipe used in the United States. It is made from layers of ground wood pulp fibers and asbestos fibres compressed with and bound by a water resistant adhesive then impregnated with liquefied coal tar pitch .
Sheep's wool insulation is a very efficient thermal insulator with a similar performance to fiberglass, approximately R13-R16 for a 4-inch-thick layer. [22] Sheep's wool has no reduction in performance even when condensation is present, but its fire retarding treatment can deteriorate through repeated moisture. [ 23 ]
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