Johns Manville AP™ Breathing Sheathing and XSPECT® Isofoam CGF insulation boards are closed cell polyurethand foam boards faced on both sides with a coated glass facer. AP™ Breathing Sheathing is supplied in 1.0-, 1.5- and 2.0-inch thickness. XSPECT® Isofoam CGF is supplied in a. 2-in. thickness.
MATERIAL RATINGS
| Test Standard |
Test Type |
Rating |
| CAN/ULC-S704.1 |
Classification |
Type 2, Class 3 |
THERMAL RESISTANCE - LTTR per CAN/ULC-S770
Thickness
(in.) |
R-Value
(°F·ft2·h/Btu) |
RSI
(°K·m2/W) |
| 2.00 |
11.4 |
2.00 |
| 1.50 |
8.5 |
1.49 |
| 1.00 |
5.6 |
0.98 |
FLAME SPREAD RATINGS
| Product |
Test Standard |
Test Type |
Rating |
1 in. thick AP™ Breathing
1 in. thick XSPECT® Isofoam CGF |
CAN/ULC-S102 |
Flame spread rating (FSR)
Smoke developed rating (SDC) |
50
85 |
