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Insulation R Values: nbs fibrous glass
1982 to 1992
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 | 1982 | 2/28/1978 | 23.82 | 1.0298 | 7.491 | Lot (?) | Board | 0.2245 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 70.03 | 0.642441 | 0.11314 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1983 | 3/1/1978 | 22.13 | 1.0297 | 7.491 | Lot (?) | Board | 0.2471 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 123.4 | 0.583682 | 0.102792 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1984 | 3/7/1978 | 23.79 | 1.0339 | 7.733 | Lot (?) | Board | 0.2266 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.76 | 0.636487 | 0.112092 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1985 | 3/9/1978 | 23.87 | 1.0215 | 7.561 | Lot (?) | Board | 0.2283 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.31 | 0.631747 | 0.111257 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1987 | 3/29/1978 | 23.76 | 1.0263 | 7.497 | Lot (?) | Board | 0.2298 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.3 | 0.627624 | 0.110531 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1988 | 4/5/1978 | 24.56 | 0.4741 | 10.22 | Lot (?) | Board | 0.2338 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.4 | 0.616886 | 0.10864 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1989 | 5/31/1978 | 24.54 | 0.9982 | 6.286 | Lot (?) | Board | 0.2225 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.49 | 0.648215 | 0.114157 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1990 | 6/1/1978 | 24.34 | 0.4808 | 9.126 | Lot (?) | Board | 0.2278 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.32 | 0.633134 | 0.111501 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1991 | 6/2/1978 | 24.22 | 1.0269 | 7.645 | Lot 1971, specimens (3,4), 1 in. | Board | 0.2272 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.21 | 0.634806 | 0.111796 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1992 | 6/6/1978 | 22.93 | 1.027 | 7.644 | Lot 1971, specimens (3,4), 1 in. | Board | 0.2492 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 125.49 | 0.578764 | 0.101926 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
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