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Insulation R Values: corkboard
695 to 847
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) | material | mean temp (F) | r value per inch (ft2hF/BTU/in) | rsi per inch (m2K/W/in) | standard | test method |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| corkboard | 695 | 9/7/1949 | 24.57 | 1.0092 | 7.15 | Sample cut from block 21x12x2 in. | Board | 0.2797 | Corkboard | 71.77 | 0.515652 | 0.090812 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 706 | 10/27/1949 | 23.53 | 0.9966 | — | ASHVE sample #10 for new cooling system | Board | 0.2777 | Corkboard | 70.75 | 0.519366 | 0.091466 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 729 | 2/21/1950 | 24.34 | 1.0339 | 7.22 | — | Board | 0.2755 | Corkboard | 72.95 | 0.523513 | 0.092196 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 730 | 2/28/1950 | 23.02 | 1.007 | 7.765 | — | Board | 0.2893 | Corkboard | 88.47 | 0.498541 | 0.087798 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 737 | 4/21/1950 | 23.07 | 0.9843 | 5.389 | — | Board | 0.2691 | Corkboard | 70.64 | 0.535964 | 0.094389 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 758 | 6/27/1950 | 23.68 | 0.9979 | 7.12 | ASHVE sample #10 | Board | 0.2777 | Corkboard | 69.06 | 0.519366 | 0.091466 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 763 | 7/6/1950 | 22.88 | 0.9883 | 8.124 | — | Board | 0.2892 | Corkboard | 69.28 | 0.498713 | 0.087828 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 766 | 8/17/1950 | 24.08 | 1.0209 | 6.107 | — | Board | 0.2788 | Corkboard | 73.33 | 0.517317 | 0.091105 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 818 | 2/14/1952 | 22.8 | 1.012 | 9.918 | Asphalt coating (one face - one specimen), other (none) | Board | 0.2869 | Corkboard | 70.07 | 0.502711 | 0.088533 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 847 | 10/28/1952 | 24.36 | 1.009 | 7.53 | Cut from 2 in. board | Board | 0.2771 | Corkboard | 72.46 | 0.52049 | 0.091664 | NIST SRD 81 API | ASTM C 177 |
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