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Insulation R Values: cellular glass
305 to 795
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| cellular glass | 305 | 9/22/1942 | 17.13 | 0.8425 | 11.7 | — | Block | 0.5378 | Pittsburgh Corning Corp. | Cellular Glass | 103.87 | 0.268181 | 0.047229 | NIST SRD 81 API | — | Foamglas® |
| cellular glass | 379 | 9/12/1944 | 16.11 | 1.006 | 10.35 | — | Block | 0.5368 | Pittsburgh Corning Corp. | Cellular Glass | 99.78 | 0.268681 | 0.047317 | NIST SRD 81 API | — | Foamglas® |
| cellular glass | 380 | 9/16/1944 | 15.6 | 1.0005 | 10.35 | — | Block | 0.5279 | Pittsburgh Corning Corp. | Cellular Glass | 95.54 | 0.273211 | 0.048115 | NIST SRD 81 API | — | Foamglas® |
| cellular glass | 581 | 8/6/1948 | 24.17 | 1.0107 | 10 | — | Block | 0.4737 | Pittsburgh Corning Corp. | Cellular Glass | 71.54 | 0.304471 | 0.05362 | NIST SRD 81 API | ASTM C 177 | Foamglas® |
| cellular glass | 662 | 1/28/1949 | 24.26 | 0.9713 | 9.44 | — | Block | 0.4376 | Pittsburgh Corning Corp. | Cellular Glass | 52.07 | 0.329588 | 0.058044 | NIST SRD 81 API | ASTM C 177 | Foamglas® |
| cellular glass | 663 | 1/31/1949 | 24.57 | 0.973 | 9.46 | — | Block | 0.4264 | Pittsburgh Corning Corp. | Cellular Glass | 52.13 | 0.338246 | 0.059568 | NIST SRD 81 API | ASTM C 177 | Foamglas® |
| cellular glass | 664 | 2/1/1949 | 24.28 | 0.9883 | 9.59 | — | Block | 0.4466 | Pittsburgh Corning Corp. | Cellular Glass | 51.93 | 0.322946 | 0.056874 | NIST SRD 81 API | ASTM C 177 | Foamglas® |
| cellular glass | 684 | 7/21/1949 | 23.36 | 0.9912 | 10.04 | — | Block | 0.4305 | Pittsburgh Corning Corp. | Cellular Glass | 50.5 | 0.335024 | 0.059001 | NIST SRD 81 API | ASTM C 177 | Foamglas® |
| cellular glass | 685 | 7/22/1949 | 24.63 | 0.9986 | 8.743 | — | Block | 0.3835 | Pittsburgh Corning Corp. | Cellular Glass | 51.81 | 0.376083 | 0.066232 | NIST SRD 81 API | ASTM C 177 | Foamglas® |
| cellular glass | 795 | 6/4/1951 | 23.57 | 0.9704 | 9.229 | Very fine cells | Block | 0.4308 | Pittsburgh Corning Corp. | Cellular Glass | 71.48 | 0.334791 | 0.05896 | NIST SRD 81 API | ASTM C 177 | Foamglas® |
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