The thicker AP/Armaflex elastomeric foam insulation is suitable for the extreme temperatures and humidity associated with commercial refrigeration and some cold-water systems. The insulation conforms to National Fire Protection Association Standards 90A and 90B, which means it meets the required 25/50 flame spread and smoke index that is required of materials used in return air plenums and, according to the company, it exceeds requirements for other building applications. The 1-1/2-inch thick insulation is designed to provide protection against mold and mildew growth, due to its smooth surface and low water vapor permeability.
Armacell LLC, 7600 Oakwood St. Extension, P.O. Box 1038; Mebane, NC 27302; www.armacell.com.