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Insulation R Values: nbs fibrous glass
1856 to 1865
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| nbs fibrous glass | 1856 | 8/20/1973 | 22.99 | 0.9948 | 8.054 | Lot 1958, return for check | Board | 0.2542 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 130.52 | 0.56738 | 0.099921 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1857 | 8/24/1973 | 26.71 | 1.001 | 8.017 | Lot 1958, return for check | Board | 0.201 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 16.34 | 0.717552 | 0.126368 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1858 | 10/18/1973 | 24.3 | 1.0263 | 7.559 | Lot 1970 | Board | 0.2301 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 75.51 | 0.626805 | 0.110387 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1859 | 11/12/1973 | 24.9 | 1.0292 | 7.815 | Lot 1970 | Board | 0.23 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 76.63 | 0.627078 | 0.110435 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1860 | 11/13/1973 | 22.97 | 1.0331 | 7.786 | Lot 1970 | Board | 0.2495 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 125.92 | 0.578068 | 0.101804 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1861 | 1/3/1974 | 22.49 | 1.0292 | 7.817 | Lot 1970 | Board | 0.2014 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 6.64 | 0.716127 | 0.126117 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1862 | 1/21/1974 | 23.44 | 1.0403 | 7.334 | Lot 1970 | Board | 0.2498 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 128.47 | 0.577373 | 0.101681 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1863 | 1/23/1974 | 22.59 | 1.0412 | 7.328 | Lot 1970 | Board | 0.2005 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 7.1 | 0.719341 | 0.126683 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1864 | 3/5/1974 | 24.55 | 1.032 | 7.635 | Lot 1970 | Board | 0.2276 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 76.52 | 0.63369 | 0.111599 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
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