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Insulation R Values: cellular polystyrene extruded
1200 to 1675
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 extruded | 1200 | 3/29/1960 | 24.92 | 0.9791 | 1.837 | Looks like Styrofoam® | Board | 0.322 | Dow Chemical Co. (?) | Cellular Polystyrene, Extruded | 74.32 | 0.447913 | 0.078882 | NIST SRD 81 API | ASTM C 177 | — |
| cellular polystyrene extruded | 1273 | 5/5/1961 | 20.46 | 0.9786 | — | Fine cell | Board | 0.2611 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 127.81 | 0.552386 | 0.097281 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1274 | 5/8/1961 | 23.84 | 0.978 | — | Fine cell | Board | 0.2436 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 73.78 | 0.592069 | 0.104269 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1325 | 4/13/1962 | 21.54 | 0.9741 | — | Fine cell | Board | 0.2709 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 128.17 | 0.532403 | 0.093762 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1326 | 4/16/1962 | 23.56 | 0.9737 | — | Fine cell | Board | 0.2481 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 74.44 | 0.58133 | 0.102378 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1343 | 5/1962 | 23.82 | 0.9769 | — | Fine cell | Board | 0.2488 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 75.17 | 0.579694 | 0.10209 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1415 | 1/31/1963 | 23.86 | 0.9719 | — | Fine cell | Board | 0.2488 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 74.9 | 0.579694 | 0.10209 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1485 | 12/19/1963 | 24.34 | 1.004 | 1.97 | — | Board | 0.2809 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 75.11 | 0.513449 | 0.090424 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1486 | 12/20/1963 | 24.02 | 0.9808 | 2 | — | Board | 0.2788 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 74.85 | 0.517317 | 0.091105 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1675 | 8/4/1966 | 24.66 | 1.0501 | 1.932 | Blue pigmented | Board | 0.2365 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 75.22 | 0.609843 | 0.1074 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
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