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Insulation R Values: nbs fibrous glass
1227 to 1249
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 | 1227 | 9/14/1960 | 23.31 | 1.0202 | 5.661 | Lot 1958 | Board | 0.2479 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 130.31 | 0.581799 | 0.102461 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1228 | 9/15/1960 | 23.99 | 1.0199 | 5.663 | Lot 1958 | Board | 0.2206 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.17 | 0.653798 | 0.115141 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1229 | 9/16/1960 | 26.11 | 1.0202 | 5.661 | Lot 1958 | Board | 0.2016 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 28.39 | 0.715416 | 0.125992 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1230 | 9/20/1960 | 22.24 | 0.9903 | 5.97 | Lot 1958 | Board | 0.2211 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 71.64 | 0.65232 | 0.11488 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1243 | 11/2/1960 | 24.05 | 1.0062 | 4.793 | Lot 1958, fibers parallel to heat flow | Board | 0.2785 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.17 | 0.517874 | 0.091203 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1244 | 11/3/1960 | 24.45 | 0.9989 | 4.828 | Lot 1958, fibers normal to heat flow | Board | 0.2226 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 73.53 | 0.647924 | 0.114106 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1245 | 11/4/1960 | 24.97 | 1.014 | 4.406 | Lot 1958 | Board | 0.2189 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 74 | 0.658876 | 0.116035 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1247 | 11/17/1960 | 18.14 | 0.5815 | 8.882 | Lot 1959, ½ in. | Board | 0.2468 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 125.76 | 0.584392 | 0.102917 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1248 | 11/18/1960 | 19.03 | 0.5829 | 8.86 | Lot 1959, ½ in. | Board | 0.2233 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 68.71 | 0.645893 | 0.113748 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
| nbs fibrous glass | 1249 | 12/9/1960 | 26.41 | 1.0044 | 4.3 | Lot 1958 | Board | 0.2016 | Owens Corning Fiberglas Corp. | NBS Fibrous Glass | 36.09 | 0.715416 | 0.125992 | NIST SRD 81 API | ASTM C 177 | SRM® 1450 Series |
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