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Insulation R Values: rock wool
272 to 352
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 | trade name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| rock wool | 272 | 1/23/1942 | 22.55 | 1.028 | 3.74 | Resil-rock marine felt, placed in wood frames | Blanket | 0.2562 | C.W. Poe Company | Rock Wool | 79.89 | 0.56295 | 0.099141 | NIST SRD 81 API | — |
| rock wool | 277 | 3/1/1942 | 12.1 | 0.88 | 15.6 | Rock wool fibers felted, bonded (asphaltic binder) | Board | 0.3285 | Baldwin Hill Co. | Rock Wool | 74.75 | 0.43905 | 0.077321 | NIST SRD 81 API | Koldboard® |
| rock wool | 313 | 1/14/1943 | 21.51 | 1.003 | 4 | — | Blanket | 0.2676 | Ruberoid Co. | Rock Wool | 81.19 | 0.538968 | 0.094918 | NIST SRD 81 API | — |
| rock wool | 314 | 1/15/1943 | 21.79 | 1.001 | 8 | — | Blanket | 0.2571 | Ruberoid Co. | Rock Wool | 81.55 | 0.56098 | 0.098794 | NIST SRD 81 API | — |
| rock wool | 325 | 5/18/1943 | 10.05 | 1.01 | 5.5 | Machine blown, removed by hand, packed in frame | Loose | 0.2833 | Johns Manville | Rock Wool | 85.83 | 0.5091 | 0.089658 | NIST SRD 81 API | — |
| rock wool | 326 | 5/19/1943 | 25.64 | 1.01 | 5.5 | Machine blown, removed by hand, packed in frame | Loose | 0.2947 | Johns Manville | Rock Wool | 99.86 | 0.489406 | 0.086189 | NIST SRD 81 API | — |
| rock wool | 335 | 7/11/1943 | 14.99 | 0.923 | 15.32 | Rock wool, asphalt binder | Board | 0.3319 | Johns Manville | Rock Wool | 104.33 | 0.434552 | 0.076529 | NIST SRD 81 API | Rock Cork® |
| rock wool | 336 | 7/12/1943 | 14.48 | 0.923 | 15.32 | Rock wool, asphalt binder | Board | 0.3435 | Johns Manville | Rock Wool | 103.89 | 0.419877 | 0.073945 | NIST SRD 81 API | Rock Cork® |
| rock wool | 34 | 1/18/1934 | — | 1.005 | 16 | Rock wool, asphalt binder | Board | 0.33 | Johns Manville | Rock Wool | 73.22 | 0.437054 | 0.07697 | NIST SRD 81 API | Rock Cork® |
| rock wool | 352 | 10/30/1943 | 20.65 | 1.017 | 15 | Rock wool fibers felted, bonded (asphaltic binder) | Board | 0.2931 | Baldwin Hill Co. | Rock Wool | 85.76 | 0.492077 | 0.08666 | NIST SRD 81 API | Koldboard® |
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