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Insulation R Values: nbs fibrous glass
1735 to 1755
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 | 1738 | 7/10/1968 | 23.41 | 0.9717 | 8.36 | Lot 1961 | Board | 0.2459 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 125.24 | 0.586531 | 0.103294 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1739 | 7/11/1968 | 23.64 | 0.9726 | 8.34 | Lot 1961 | Board | 0.2354 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 100.24 | 0.612693 | 0.107901 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1740 | 7/12/1968 | 24.22 | 0.9731 | 8.35 | Lot 1961 | Board | 0.2252 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.83 | 0.640444 | 0.112789 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1743 | 7/17/1968 | 23.02 | 0.4731 | 10.26 | Lot 1959, ½ in. | Board | 0.2577 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 129.94 | 0.559674 | 0.098564 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1744 | 7/18/1968 | 24.35 | 0.4737 | 10.24 | Lot 1959, ½ in. | Board | 0.2339 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.09 | 0.616622 | 0.108593 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1753 | 8/6/1968 | 23.93 | 0.9619 | 9.453 | Lot 1961 | Board | 0.2353 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.95 | 0.612953 | 0.107947 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1754 | 9/30/1968 | 22.88 | 0.9711 | 9.244 | Lot 1961 | Board | 0.256 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 130.02 | 0.56339 | 0.099219 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1755 | 10/1/1968 | 24.27 | 0.9702 | 9.253 | Lot 1961 | Board | 0.2319 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.09 | 0.62194 | 0.10953 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
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