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Insulation R Values: cellular polystyrene expanded
1503 to 382
Insulation R-values and thermal conductivity data from NIST SRD 81 — covers fiberglass, foam, cellulose, mineral wool, and other building insulation materials
| material id | record id | date | delta t (F) | delta x (in) | density (lb/ft3) | description | form | k w mk (W/mK) | manufacturer | material | mean temp (F) | r value per inch (ft2hF/BTU/in) | rsi per inch (m2K/W/in) | standard | test method | trade name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| cellular polystyrene expanded | 1503 | 1/24/1964 | 25.78 | 1.046 | 1.56 | Bead polystyrene foam | Board | 0.2462 | U.S. Army Engineer R&D Laboratory | Cellular Polystyrene, Expanded | 54.14 | 0.585816 | 0.103168 | NIST SRD 81 API | ASTM C 177 | — |
| cellular polystyrene expanded | 1526 | 5/15/1964 | 23.46 | 1.0161 | 1.16 | Bead polystyrene foam | Board | 0.2508 | Dura-Tech Corporation | Cellular Polystyrene, Expanded | 74.46 | 0.575071 | 0.101276 | NIST SRD 81 API | ASTM C 177 | Spanex |
| cellular polystyrene expanded | 1725 | 12/8/1967 | 23.74 | 1.0193 | 1.872 | White pigment, bead-type | Board | 0.2644 | — | Cellular Polystyrene, Expanded | 131.35 | 0.545491 | 0.096067 | NIST SRD 81 API | ASTM C 177 | — |
| cellular polystyrene expanded | 1726 | 12/11/1967 | 24.36 | 1.0177 | 1.875 | White pigment, bead-type | Board | 0.2393 | — | Cellular Polystyrene, Expanded | 75.21 | 0.602707 | 0.106143 | NIST SRD 81 API | ASTM C 177 | — |
| cellular polystyrene expanded | 1764 | 11/19/1968 | 14.07 | 0.4092 | 1.15 | — | Board | 0.2252 | Western Insulfoam Co. | Cellular Polystyrene, Expanded | 39.94 | 0.640444 | 0.112789 | NIST SRD 81 API | ASTM C 177 | — |
| cellular polystyrene expanded | 1765 | 11/20/1968 | 24.23 | 1.023 | 0.789 | — | Board | 0.2621 | Western Insulfoam Co. | Cellular Polystyrene, Expanded | 39.94 | 0.550278 | 0.09691 | NIST SRD 81 API | ASTM C 177 | — |
| cellular polystyrene expanded | 350 | 10/21/1943 | 18.33 | 1.111 | 1.045 | White pigment, closed-cell | Board | 0.354 | Dow Chemical Co. | Cellular Polystyrene, Expanded | 92.22 | 0.407423 | 0.071751 | NIST SRD 81 API | — | Styrol Foam |
| cellular polystyrene expanded | 351 | 10/23/1943 | 17.44 | 1.1 | 1.055 | White pigment, closed-cell | Board | 0.3686 | Dow Chemical Co. | Cellular Polystyrene, Expanded | 92.08 | 0.391286 | 0.068909 | NIST SRD 81 API | — | Styrol Foam |
| cellular polystyrene expanded | 382 | 10/9/1944 | 20.78 | 0.989 | 1.85 | Similar to styrol foam (sic), pores or voids: 1/16 in. to 1/8 in. | Board | 0.4533 | Dow Chemical Co. | Cellular Polystyrene, Expanded | 92.68 | 0.318173 | 0.056034 | NIST SRD 81 API | — | — |
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