To compare the old gsa specs with the new please refer to tables 1 and 2.
Dow extruded polystyrene board insulation type iv.
Designed primarily for building insulation the specification does not cover cryogenic applications.
Utilityfit 15 psi extruded polystyrene xps foam insulation is a styrofoam brand solution manufactured as a versatile utility grade product for applications that require a high r value and outstanding moisture resistance without the need for high compressive strength.
Type i thermal resistance.
Classification of polystyrene board insulation.
Foamular extruded polystyrene xps insulation astm c578 types and physical properties this table outlines the basic physical property requirements of astm c5781 and foamular xps insulation compliance.
Classifications for the five types of polystyrene insulation are as follows.
Product information general purpose insulation for roofing wall and foundation applications requiring 25 psi minimum compressive strength greenguard type iv 25 psi insulation board is an ideal exterior insulation meeting your needs for multiple applications.
Its extruded polystyrene xps construction provides superior moisture resistance.