Designed primarily for building insulation the specification does not cover cryogenic applications.
Dow extruded polystyrene board insulation type iv.
Type i thermal resistance.
Its extruded polystyrene xps construction provides superior moisture resistance.
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.
To compare the old gsa specs with the new please refer to tables 1 and 2.
Extruded polystyrene xps rigid foam insulation energy saving moisture resistant xps insulation astm c 578 type iv 25 psi minimum description owens corning foamular 250 extruded polystyrene xps insulation is a closed cell moisture resistant rigid foam board well suited to meet the needs for a wide variety of building applications.
Classifications for the five types of polystyrene insulation are as follows.
Classification of polystyrene board insulation.
The products are organized left to right in ascending compressive strength.