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Insulation R Values: asphalt
266 to 851
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| asphalt | 266 | 1/14/1942 | 21.28 | 0.972 | 93 | 49% asphalt, 51% siliceous mineral filler (by weight) | Block | 2.9556 | — | Asphalt | 75.69 | 0.048798 | 0.008594 | NIST SRD 81 API | — | — |
| asphalt | 267 | 1/15/1942 | 21.35 | 0.972 | 96.8 | 48% asphalt, 52% siliceous mineral filler (by weight) | Block | 3.6127 | — | Asphalt | 77.5 | 0.039922 | 0.007031 | NIST SRD 81 API | — | — |
| asphalt | 270 | 1/21/1942 | 12.9 | 0.97 | 60.7 | Pure asphalt | Block | 1.0863 | — | Asphalt | 79.05 | 0.13277 | 0.023382 | NIST SRD 81 API | — | — |
| asphalt | 273 | 1/26/1942 | 21.32 | 0.957 | 61.5 | Nearly pure asphalt | Block | 1.0694 | — | Asphalt | 79 | 0.134868 | 0.023752 | NIST SRD 81 API | — | — |
| asphalt | 274 | 1/27/1942 | 8.29 | 0.973 | 97.9 | 52% asphalt, 48% wood resin pitch, mineral filler | Block | 2.8788 | — | Asphalt | 81.73 | 0.0501 | 0.008823 | NIST SRD 81 API | — | — |
| asphalt | 362 | 5/8/1944 | 10.24 | 1.034 | 83.91 | (Asphalt) transformer potting compound (Navy Standard) | Block | 2.0727 | — | Asphalt | 87.12 | 0.069585 | 0.012255 | NIST SRD 81 API | — | — |
| asphalt | 363 | 5/9/1944 | 11.47 | 0.9415 | 92 | (Asphalt) transformer potting compound (Humble Oil) | Block | 2.4044 | — | Asphalt | 88.26 | 0.059985 | 0.010564 | NIST SRD 81 API | — | Humble Oil |
| asphalt | 837 | 8/21/1952 | 23.18 | 0.9924 | 64.14 | Asphalt hot-melt compound per MIL-C-3301 (cavity lining) | Block | 1.1084 | — | Asphalt | 70.74 | 0.130123 | 0.022916 | NIST SRD 81 API | ASTM C 177 | — |
| asphalt | 839 | 8/26/1952 | 19.28 | 0.6059 | 66.4 | Asphalt compound, aqueous emulsified & powdered cork | Block | 1.6605 | Pioneer-Flintkote | Asphalt | 67.46 | 0.086858 | 0.015297 | NIST SRD 81 API | ASTM C 177 | Flintkote® |
| asphalt | 851 | 11/4/1952 | 13.89 | 0.2787 | 68.46 | — | Block | 1.0923 | Flintkote Co. | Asphalt | 63.63 | 0.132041 | 0.023254 | NIST SRD 81 API | ASTM C 177 | Flintkote® |
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