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Insulation R Values: nbs fibrous glass
1822 to 1842
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 | uncertainty |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| nbs fibrous glass | 1822 | 4/29/1970 | 26.22 | 1.0029 | 7.998 | Lot 1958, return for check | Board | 0.2018 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 14 | 0.714707 | 0.125867 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1823 | 5/5/1970 | 24.77 | 1.0022 | 8.003 | Lot 1958, return for check | Board | 0.1999 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 10.35 | 0.7215 | 0.127064 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1825 | 7/22/1970 | 24.6 | 1.0346 | 7.433 | Lot 1970 | Board | 0.228 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.82 | 0.632579 | 0.111404 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1826 | 7/24/1970 | 24.24 | 1.0238 | 7.969 | Lot 1970 | Board | 0.2293 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.47 | 0.628992 | 0.110772 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1830 | 12/3/1970 | 24.68 | 0.4825 | 10.43 | Lot 1959, ½ in. | Board | 0.236 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.82 | 0.611135 | 0.107627 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1834 | 8/26/1971 | 24.32 | 0.9596 | 9.172 | Lot 1961 | Board | 0.2329 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75 | 0.61927 | 0.10906 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1839 | 2/16/1972 | 24.7 | 0.9621 | 8.868 | Lot 1961 | Board | 0.2273 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.93 | 0.634527 | 0.111747 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1840 | 6/16/1972 | 24.89 | 1.032 | 7.622 | Lot 1970 | Board | 0.2285 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.14 | 0.631194 | 0.11116 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1841 | 8/11/1972 | 23.88 | 1.032 | 7.893 | Lot 1970 | Board | 0.2292 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.55 | 0.629267 | 0.11082 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1842 | 9/29/1972 | 24.68 | 1.0308 | 7.994 | Lot 1970 | Board | 0.2286 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.09 | 0.630918 | 0.111111 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
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