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Insulation R Values: rock wool
70 to 88
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| rock wool | 70 | 12/11/1936 | — | 1.02 | 9.84 | — | Board | 0.267 | — | Rock Wool | 90.7 | 0.540179 | 0.095131 | NIST SRD 81 API | — | — |
| rock wool | 785 | 11/9/1950 | 22.83 | 0.9928 | 28.13 | Rock wool, adhesive binder, specimen cut from 1½ in. material | Spray | 0.4815 | Sprayed Insulation, Inc. | Rock Wool | 68.22 | 0.299539 | 0.052752 | NIST SRD 81 API | ASTM C 177 | SprayKote |
| rock wool | 786 | 12/12/1950 | 23.93 | 1.0546 | 20.86 | Rock wool, adhesive binder, specimen cut from 1 in. material | Spray | 0.4318 | Sprayed Insulation, Inc. | Rock Wool | 69.81 | 0.334016 | 0.058824 | NIST SRD 81 API | ASTM C 177 | SprayKote |
| rock wool | 80 | 4/28/1937 | — | 1.06 | 14.9 | Rock wool, asphalt binder | Board | 0.344 | Johns Manville | Rock Wool | 88.6 | 0.419267 | 0.073837 | NIST SRD 81 API | — | Rock Cork® |
| rock wool | 805 | 8/14/1951 | 22.9 | 1.0019 | 3.937 | Fine texture fiber | Blanket | 0.261 | Forty-Eight Insulations, Inc. | Rock Wool | 68.2 | 0.552597 | 0.097318 | NIST SRD 81 API | ASTM C 177 | — |
| rock wool | 83 | 5/24/1937 | — | 1.02 | 11.5 | — | Board | 0.27 | — | Rock Wool | 94.3 | 0.534177 | 0.094074 | NIST SRD 81 API | — | — |
| rock wool | 831 | 8/13/1952 | 24.24 | 1.0189 | 4.31 | Rock wool, super felt, specimen cut from 4 in. batt | Blanket | 0.2523 | Johns Manville | Rock Wool | 71.29 | 0.571652 | 0.100674 | NIST SRD 81 API | ASTM C 177 | — |
| rock wool | 832 | 8/14/1952 | 24.27 | 1.026 | 4.513 | Rock wool, super felt, specimen cut from 2 in. batt | Blanket | 0.2526 | Johns Manville | Rock Wool | 71.45 | 0.570973 | 0.100554 | NIST SRD 81 API | ASTM C 177 | — |
| rock wool | 850 | 10/31/1952 | 23.94 | 0.9902 | 14.36 | Specimens placed in wood frames | Loose | 0.2844 | — | Rock Wool | 72.23 | 0.50713 | 0.089311 | NIST SRD 81 API | ASTM C 177 | Confederate Brand |
| rock wool | 88 | 7/16/1937 | — | 0.974 | 15.1 | Rock wool, asphalt binder | Board | 0.358 | Johns Manville | Rock Wool | 95.2 | 0.402871 | 0.07095 | NIST SRD 81 API | — | Rock Cork® |
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