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Insulation R Values: corkboard
944 to 948
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) | 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 | 944 | 6/29/1954 | 23.47 | 0.9496 | ASHVE sample #4 | Board | 0.3122 | Corkboard | 71.43 | 0.461973 | 0.081358 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 946 | 7/7/1954 | 22.6 | 0.9549 | ASHVE sample #4 | Board | 0.329 | Corkboard | 130.37 | 0.438383 | 0.077204 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 947 | 7/9/1954 | 22.17 | 0.9505 | ASHVE sample #4 | Board | 0.3308 | Corkboard | 130.02 | 0.435997 | 0.076784 | NIST SRD 81 API | ASTM C 177 |
| corkboard | 948 | 7/12/1954 | 22.21 | 0.9513 | ASHVE sample #4 | Board | 0.331 | Corkboard | 130.07 | 0.435734 | 0.076737 | NIST SRD 81 API | ASTM C 177 |
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