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Styrofoam insulation extruded polystyrene foam (XPS), owned and manufactured by DuPont. Styrofoam is a genericized trademarked brand of closed-cell extruded polystyrene foam (XPS), manufactured to provide continuous building insulation board used in walls, roofs, and foundations as thermal insulation and as a water barrier.
A multi-family residential building under construction with rigid panel exterior insulating sheathing. Rigid panel insulation, also referred to as continuous insulation, [1] can be made from foam plastics such as polyurethane (PUR), polyisocyanurate (PIR), and polystyrene, or from fibrous materials such as fiberglass, rock and slag wool.
The generalised chemical structure of polyisocyanurate showing the isocyanurate group. The polyols are abbreviated as R-groups.. Polyisocyanurate (/ ËŒ p É’ l ɪ ËŒ aɪ s oÊŠ s aɪ ˈ æ nj ÊŠÉ™r eɪ t /), also referred to as PIR, polyol, or ISO, is a thermoset plastic [1] typically produced as a foam and used as rigid thermal insulation.
Grey polystyrene foam, incorporating graphite, has superior insulation properties. [45] Carl Munters and John Gudbrand Tandberg of Sweden received a US patent for polystyrene foam as an insulation product in 1935 (USA patent number 2,023,204). [46] PS foams also exhibit good damping properties, therefore it is used widely in packaging.
[3] The wallboard business was sold to BPB plc, its roofing products business to CertainTeed in 2000, its fiberboard products division along with the Celotex brand to Knight Industries LLC in 2001, [2] and its rigid foam insulation division to the Dow Chemical Company in 2001. [6] Celotex moved again, to Saint Petersburg, Florida, in 2001.
This is a list of insulation materials used around the world. ... Polyisocyanurate spray foam 2.54: 1 0.76–1.46: ... Polystyrene board [6] 2.54: 1 0.88: 5.00: 35 ...
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