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Insulation R Values: cellular polystyrene extruded
1712 to 1909
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 | 1712 | 9/22/1967 | 24.48 | 1.0635 | 1.801 | Blue pigmented | Board | 0.2697 | — | Cellular Polystyrene, Extruded | 75.17 | 0.534772 | 0.094179 | NIST SRD 81 API | ASTM C 177 | — |
| cellular polystyrene extruded | 1797 | 10/8/1969 | 23.56 | 1.0115 | 2.209 | Ground insulation (inside-out) | Board | 0.2287 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 91.95 | 0.630642 | 0.111063 | NIST SRD 81 API | ASTM C 177 | Scorbord® |
| cellular polystyrene extruded | 1798 | 10/9/1969 | 24.95 | 1.012 | 2.208 | Ground insulation | Board | 0.2093 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 51.98 | 0.689097 | 0.121357 | NIST SRD 81 API | ASTM C 177 | Scorbord® |
| cellular polystyrene extruded | 1808 | 11/14/1969 | 24.22 | 1.021 | 2.092 | — | Board | 0.2105 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 92.34 | 0.685168 | 0.120665 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1809 | 11/17/1969 | 24.59 | 1.0205 | 2.093 | — | Board | 0.1935 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 51.22 | 0.745364 | 0.131266 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1810 | 11/18/1969 | 23.81 | 1.0188 | 2.113 | — | Board | 0.2118 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 91.61 | 0.680963 | 0.119924 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1811 | 11/19/1969 | 25.18 | 1.0175 | 2.116 | — | Board | 0.1935 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 51.83 | 0.745364 | 0.131266 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1845 | 10/20/1972 | 24.41 | 1.0246 | 3.416 | — | Board | 0.2413 | Dow Chemical Co. | Cellular Polystyrene, Extruded | 74.23 | 0.597712 | 0.105263 | NIST SRD 81 API | ASTM C 177 | Styrofoam® |
| cellular polystyrene extruded | 1908 | 4/25/1975 | 21.76 | 1.2457 | 2.188 | Air blown (?) | Board | 0.2155 | Philips Research Laboratory GmbH | Cellular Polystyrene, Extruded | 66.05 | 0.669271 | 0.117865 | NIST SRD 81 API | ASTM C 177 | Styrodur |
| cellular polystyrene extruded | 1909 | 4/27/1975 | 13.95 | 1.2457 | 2.188 | Air blown (?) | Board | 0.2122 | Philips Research Laboratory GmbH | Cellular Polystyrene, Extruded | 58.88 | 0.679679 | 0.119698 | NIST SRD 81 API | ASTM C 177 | Styrodur |
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