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Insulation R Values: nbs fibrous glass
1250 to 1268
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 | 1250 | 12/14/1960 | 23.48 | 1.0303 | 7.172 | Lot 1958 | Board | 0.2488 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 130.57 | 0.579694 | 0.10209 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1251 | 12/15/1960 | 24.05 | 1.0297 | 7.176 | Lot 1958 | Board | 0.2248 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.23 | 0.641583 | 0.112989 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1252 | 12/16/1960 | 24.57 | 1.0289 | 7.174 | Lot 1958 | Board | 0.2084 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 34.42 | 0.692072 | 0.121881 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1262 | 2/1/1961 | 24.87 | 1.03 | 6.244 | Lot 1958 | Board | 0.2227 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.93 | 0.647633 | 0.114055 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1263 | 2/2/1961 | 24.52 | 0.5818 | 8.823 | Lot 1959, ½ in. | Board | 0.2257 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.71 | 0.639025 | 0.112539 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1264 | 2/5/1961 | 25.03 | 1.0208 | 8.305 | Lot 1958 | Board | 0.226 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.4 | 0.638177 | 0.112389 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1265 | 2/6/1961 | 23.61 | 0.5747 | 7.215 | Lot 1959, ½ in. | Board | 0.2444 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 130.6 | 0.590131 | 0.103928 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1266 | 2/7/1961 | 24.77 | 0.5776 | 7.179 | Lot 1959, ½ in. | Board | 0.2199 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.84 | 0.655879 | 0.115507 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1267 | 4/13/1961 | 24.36 | 0.5488 | 6.831 | Lot 1959, ½ in. | Board | 0.2209 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74.32 | 0.65291 | 0.114984 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1268 | 4/14/1961 | 25.33 | 0.5506 | 6.79 | Lot 1959, ½ in. | Board | 0.2042 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 31.06 | 0.706307 | 0.124388 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
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