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Insulation R Values: nbs fibrous glass
1775 to 1796
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 | 1775 | 3/4/1969 | 25.43 | 0.9471 | 8.59 | Lot 1961 | Board | 0.2092 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 29.82 | 0.689426 | 0.121415 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1778 | 5/1/1969 | 24.55 | 0.9418 | 8.703 | Lot 1961 | Board | 0.2289 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.08 | 0.630091 | 0.110965 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1779 | 5/2/1969 | 24.56 | 0.9581 | 9.208 | Lot 1961 | Board | 0.23 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.16 | 0.627078 | 0.110435 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1780 | 5/12/1969 | 23.94 | 0.4708 | 11.34 | Lot 1959, ½ in. | Board | 0.2404 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.51 | 0.59995 | 0.105657 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1781 | 5/13/1969 | 21.24 | 0.4701 | 11.36 | Lot 1959, ½ in. | Board | 0.2103 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 0.04 | 0.68582 | 0.12078 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1784 | 7/31/1969 | 22.95 | 0.468 | 9.804 | Lot 1959, ½ in. | Board | 0.2556 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 129.62 | 0.564272 | 0.099374 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1793 | 8/18/1969 | 23.58 | 1.0308 | 4.982 | Lot 1958 | Board | 0.2387 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 115.44 | 0.604222 | 0.10641 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1794 | 9/9/1969 | 23.04 | 0.4813 | 8.626 | Lot 1959, ½ in. | Board | 0.2485 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 124.96 | 0.580394 | 0.102213 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1795 | 9/10/1969 | 24.09 | 0.4833 | 8.59 | Lot 1959, ½ in. | Board | 0.2234 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 68.31 | 0.645604 | 0.113697 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
| nbs fibrous glass | 1796 | 10/6/1969 | 24.72 | 0.464 | 8.674 | Lot 1959, ½ in. | Board | 0.2276 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 76.45 | 0.63369 | 0.111599 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series | 1 |
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