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Foil-faced polyisocyanurate rigid panel (pentane-expanded) initial 2.54: 1 1.20: 6.8: 55 [3] Foil-faced polyisocyanurate rigid panel (pentane-expanded) aged 5–10 years 2.54: 1 0.97: 5.5: 38 Polyisocyanurate spray foam 2.54: 1 0.76–1.46: 4.3–8.3: 30–57 Closed-cell polyurethane spray foam 2.54: 1 0.97–1.14: 5.5–6.5: 38–45 Phenolic ...
Foil or "reflective foil laminate"s (RFL). Foil-faced polyurethane or foil-faced polyisocyanurate panels. Foil-faced polystyrene. This laminated, high density EPS is more flexible than rigid panels, works as a vapor barrier, and works as a thermal break. Uses include the underside of roof sheathing, ceilings, and on walls.
Extruded polystyrene or foil-faced foam board insulation. Exterior grade plywood, 0.70 US perm (40 SI perm). Most sheet type monolithic roofing membranes. Glass and metal sheets (such as in doors and windows).
A vacuum insulated panel (VIP) is a form of thermal insulation consisting of a gas-tight enclosure surrounding a rigid core, from which the air has been evacuated. It is used in building construction, refrigeration units, and insulated shipping containers to provide better insulation performance than conventional insulation materials.
In the case of SIPs, the creep potential of OSB faced SIPs with EPS or polyurethane foam cores has been studied and creep design recommendations exist. [3] [4] The long-term effects of using unconventional facing and core materials require material specific testing to quantify creep design values.
The generalised chemical structure of polyisocyanurate showing the isocyanurate group. The polyols are abbreviated as R-groups.. Polyisocyanurate (/ ˌ p ɒ l ɪ ˌ aɪ s oʊ s aɪ ˈ æ nj ʊər 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.
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