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Insulation R Values: nbs fibrous glass
1993 to 2002
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 | 1993 | 6/7/1978 | 23.53 | 1.0261 | 7.652 | Lot 1971, specimens (3,4), 1 in. | Board | 0.2003 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 8.15 | 0.720059 | 0.12681 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1994 | 6/14/1978 | 24.14 | 1.0272 | 7.681 | Lot (?) | Board | 0.2285 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.03 | 0.631194 | 0.11116 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1995 | 7/11/1978 | 24.57 | 1.025 | 7.719 | Lot 1971, specimens (1,2), 1 in. | Board | 0.2297 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.32 | 0.627897 | 0.110579 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1996 | 7/12/1978 | 24.22 | 1.025 | 7.719 | Lot 1971, specimens (1,2), 1 in. | Board | 0.2346 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 87.04 | 0.614782 | 0.108269 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1997 | 7/17/1978 | 24.73 | 1.0238 | 7.747 | Lot 1971, specimens (3,4), 1 in. | Board | 0.2278 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.43 | 0.633134 | 0.111501 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1998 | 7/24/1978 | 24.28 | 1.0238 | 7.747 | Lot 1971, specimens (3,4), 1 in. | Board | 0.2241 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 63.53 | 0.643587 | 0.113342 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 1999 | 8/1/1978 | 24.29 | 0.4689 | 10.35 | Lot 1959, ½ in., return for check | Board | 0.2318 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.01 | 0.622208 | 0.109577 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 2000 | 8/2/1978 | 23.9 | 1.0312 | 7.509 | Lot (?) | Board | 0.2255 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.93 | 0.639592 | 0.112639 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 2001 | 8/9/1978 | 23.76 | 1.0277 | 7.734 | Lot 1971, specimens (5,6), 1 in. | Board | 0.2261 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.32 | 0.637894 | 0.11234 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | — |
| nbs fibrous glass | 2002 | 9/7/1978 | 23.24 | 0.4843 | 10.18 | Lot 1959, ½ in., return for check | Board | 0.2578 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 127.65 | 0.559457 | 0.098526 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
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