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Insulation R Values: glass
1470 to 2112
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| glass | 1470 | 11/15/1963 | 13.23 | 0.9659 | 138.7 | Annealed | Block | 7.3685 | Corning Glass Works | Glass | 30.78 | 0.019574 | 0.003447 | NIST SRD 81 API | ASTM C 177 | Pyrex® 7740 |
| glass | 2110 | 6/25/1980 | 24.06 | 0.947 | 138.46 | — | Block | 6.6445 | Corning Glass Works | Glass | 75.62 | 0.021706 | 0.003823 | NIST SRD 81 API | ASTM C 177 | Pyrex® 7740 |
| glass | 2111 | 6/27/1980 | 23.9 | 0.947 | 138.46 | — | Block | 6.7977 | Corning Glass Works | Glass | 98.67 | 0.021217 | 0.003737 | NIST SRD 81 API | ASTM C 177 | Pyrex® 7740 |
| glass | 2112 | 6/30/1980 | 22.98 | 0.947 | 138.46 | — | Block | 6.8479 | Corning Glass Works | Glass | 126.06 | 0.021062 | 0.003709 | NIST SRD 81 API | ASTM C 177 | Pyrex® 7740 |
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