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.
- R-Value Ranges: 4-20
- Thickness Ranges: 0.75-4"
FOAMULAR® Fanfold Damproofing/Waterproofing Board (DWB) is a thin extruded polystyrene fanfold board with a non-perforated plastic film facer.
- R-Value Ranges: 1
- Thickness Ranges: 0.25"