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Insulation R Values: rockboard
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| rockboard | 485 | 1/28/1947 | 8.91 | 0.458 | 63.82 | Rock composition board, paper faces, ½ in. | Board | 1.5151 | U.S. Rockboard Corp. | Rockboard | 63.11 | 0.095194 | 0.016765 | NIST SRD 81 API | ASTM C 177 |
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