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Insulation R Values: fiberboard
1121 to 182
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| fiberboard | 1121 | 12/19/1958 | 23.81 | 0.501 | 14.6 | Insulation board, ½ in. | Board | 0.334 | Fiberboard | 73.34 | 0.43182 | 0.076048 | NIST SRD 81 API | ASTM C 177 |
| fiberboard | 1155 | 8/4/1959 | 22.82 | 0.9548 | 16.19 | Asphalt coating (both faces), 1 in. | Board | 0.3473 | Fiberboard | 72.01 | 0.415283 | 0.073136 | NIST SRD 81 API | ASTM C 177 |
| fiberboard | 1195 | 1/23/1960 | 24.94 | 1.0591 | 15 | Insulation board, 1 in. | Board | 0.3565 | Fiberboard | 74.17 | 0.404566 | 0.071248 | NIST SRD 81 API | ASTM C 177 |
| fiberboard | 1212 | 6/22/1960 | 25.5 | 1.0147 | 17.59 | Insulation board, ½ in. | Board | 0.3583 | Fiberboard | 74.8 | 0.402534 | 0.07089 | NIST SRD 81 API | ASTM C 177 |
| fiberboard | 1221 | 7/22/1960 | 23.24 | 1.0213 | 14.16 | Insulation board, 1 in. | Board | 0.3462 | Fiberboard | 72.61 | 0.416603 | 0.073368 | NIST SRD 81 API | ASTM C 177 |
| fiberboard | 1301 | 10/5/1961 | 23.81 | 1.0649 | 18.07 | Insulation board for roof deck, 1 in. | Board | 0.3853 | Fiberboard | 73.61 | 0.374326 | 0.065923 | NIST SRD 81 API | ASTM C 177 |
| fiberboard | 1476 | 12/3/1963 | 24.36 | 0.9705 | 18.63 | Insulation board for roof deck, 1 in. | Board | 0.3864 | Fiberboard | 75.14 | 0.373261 | 0.065735 | NIST SRD 81 API | ASTM C 177 |
| fiberboard | 1477 | 12/4/1963 | 24.37 | 0.9987 | 19.5 | Insulation board for roof deck, 1 in. | Board | 0.396 | Fiberboard | 75.13 | 0.364212 | 0.064141 | NIST SRD 81 API | ASTM C 177 |
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