Construction Materials
Made of a thick glass fiber insulating blanket, jacketed
by a fiberglass reinforced metalized vapor barrier.
R-Value
R-4.2, 6.0, 8.0
Vapor Barrier Permeance
0.04 perm (2.3 ng / s.m².Pa)
Available Diameters
4, 5, 6 inches
Standard Lengths
10 feet
Surface Burning Characteristics
Maximum Flame Spread = 25
Maximum Smoke Development = 50






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