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Insulation R Values: cellular polyethylene
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) | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| cellular polyethylene | 1767 | 11/22/1968 | 14.25 | 0.4896 | 2.82 | Board | 0.3243 | Dow Chemical Co. | Cellular Polyethylene | 39.86 | 0.444736 | 0.078323 | NIST SRD 81 API | ASTM C 177 |
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