$227
$227
High Temperature Insulation Density 40 lb/cu ft Facing Material Unfaced Flexibility Not Applicable Foam Cell Type Closed Form Board Insulation Color White Insulation Material Calcium Silicate Maximum Operating Temperature 1 700 Degrees F Minimum Operating Temperature 0 Degrees F Overall Length 4 ft Overall Width 4 ft R Value 1.54 Thickness 1 1/2 in Standards ASTM C656 C795 E119 E136 E72 E84 NFPA251 UL 1479 UL 1709 UL 263 Water Vapor Absorption MinimalMRO19NE57
| # | Attribute | Value |
|---|---|---|
| 1. | brand | JOHNS MANVILLE |

