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Insulation R Values: glass fiber blanket
2018 to 2044
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 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| glass fiber blanket | 2018 | 4/2/1979 | 17.23 | 1.0857 | 0.859 | SRM® 1451, Sample 80153 | 0.31 | Johns Manville | Glass Fiber Blanket | 98.55 | 0.465251 | 0.081935 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2019 | 4/6/1979 | 17.32 | 1.0839 | 0.86 | SRM® 1451, Sample 80153 | 0.3103 | Johns Manville | Glass Fiber Blanket | 97.57 | 0.464801 | 0.081856 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2020 | 4/9/1979 | 23.01 | 1.0839 | 0.86 | SRM® 1451, Sample 80153 | 0.3443 | Johns Manville | Glass Fiber Blanket | 126.93 | 0.418902 | 0.073773 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2021 | 4/13/1979 | 20.37 | 1.0842 | 0.86 | SRM® 1451, Sample 80153 | 0.2216 | Johns Manville | Glass Fiber Blanket | -0.94 | 0.650848 | 0.114621 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2022 | 5/3/1979 | 24.77 | 1.0842 | 0.86 | SRM® 1451, Sample 80153 | 0.2615 | Johns Manville | Glass Fiber Blanket | 46.68 | 0.551541 | 0.097132 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2040 | 7/27/1979 | 22.83 | 1.1689 | 0.726 | SRM® 1451, Sample 80143 | 0.3552 | Johns Manville | Glass Fiber Blanket | 127.71 | 0.406047 | 0.071509 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2041 | 7/30/1979 | 23.11 | 1.1174 | 0.759 | SRM® 1451, Sample 80143 | 0.3506 | Johns Manville | Glass Fiber Blanket | 128.05 | 0.411375 | 0.072447 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2042 | 7/30/1979 | 23.2 | 1.1174 | 0.758 | SRM® 1451, Sample 80143 | 0.349 | Johns Manville | Glass Fiber Blanket | 128.11 | 0.41326 | 0.072779 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2043 | 7/31/1979 | 14.31 | 1.1185 | 0.758 | SRM® 1451, Sample 80143 | 0.349 | Johns Manville | Glass Fiber Blanket | 128.51 | 0.41326 | 0.072779 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
| glass fiber blanket | 2044 | 8/1/1979 | 24.8 | 1.1181 | 0.758 | SRM® 1451, Sample 80143 | 0.2948 | Johns Manville | Glass Fiber Blanket | 75.68 | 0.48924 | 0.08616 | NIST SRD 81 API | ASTM C 177 | SRM® 1451 |
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