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Insulation R Values: glass fiber blanket
1870 to 1883
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 | 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 | uncertainty |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| glass fiber blanket | 1870 | 7/11/1974 | 24.48 | 1.0004 | 0.712 | Specimens (5-32,5-36) | 0.3102 | Johns Manville | Glass Fiber Blanket | 75.18 | 0.464951 | 0.081883 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1871 | 7/12/1974 | 24.45 | 1 | 1.07 | Specimens (10-33,10-35) | 0.2693 | Johns Manville | Glass Fiber Blanket | 75.18 | 0.535566 | 0.094319 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1872 | 7/16/1974 | 24.55 | 1.0001 | 1.651 | Specimens (15-54,15-62) | 0.2433 | Johns Manville | Glass Fiber Blanket | 75.21 | 0.592799 | 0.104398 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1873 | 7/17/1974 | 24.44 | 1.0002 | 2.147 | Specimens (20-6,20-9) | 0.235 | Johns Manville | Glass Fiber Blanket | 75.21 | 0.613736 | 0.108085 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1877 | 7/23/1974 | 24.68 | 1.0004 | 0.683 | Specimens (5-10,5-17) | 0.3077 | Johns Manville | Glass Fiber Blanket | 75.27 | 0.468729 | 0.082548 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1878 | 7/25/1974 | 22.8 | 1.0001 | 0.683 | Specimens (5-10,5-17) | 0.3722 | Johns Manville | Glass Fiber Blanket | 129.19 | 0.387501 | 0.068243 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1879 | 7/26/1974 | 22.22 | 1.0001 | 0.683 | Specimens (5-10,5-17) | 0.2365 | Johns Manville | Glass Fiber Blanket | 1.42 | 0.609843 | 0.1074 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1881 | 7/30/1974 | 24.63 | 1 | 1.571 | Specimens (15-13,5-52) | 0.2477 | Johns Manville | Glass Fiber Blanket | 75.39 | 0.582268 | 0.102543 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1882 | 7/31/1974 | 22.87 | 1 | 1.571 | Specimens (15-13,5-52) | 0.2879 | Johns Manville | Glass Fiber Blanket | 129.14 | 0.500965 | 0.088225 | NIST SRD 81 API | ASTM C 177 | 1 |
| glass fiber blanket | 1883 | 8/2/1974 | 22.32 | 1 | 1.571 | Specimens (15-13,5-52) | 0.2026 | Johns Manville | Glass Fiber Blanket | 1.94 | 0.711885 | 0.12537 | NIST SRD 81 API | ASTM C 177 | 1 |
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