Neopor® Graphite Polystyrene (GPS) Foam Sheathing Insulation is a type of expanded polystyrene (EPS) that incorporates graphite particles. This insulation features a closed-cell structure, where countless tiny air pockets are embedded within a polymer matrix. The graphite particles are integrated into the cell walls, allowing the material to absorb and reflect radiant heat – much like a mirror. This reflective property significantly enhances the insulation’s thermal resistance, resulting in a higher R-value.
Thus, the graphite in GPS provides a functional benefit compared to standard white EPS insulation without graphite, by radiating a higher amount of infrared heat energy back and slowing heat loss through walls.
For example, Neopor® GPS uses up to 30% less material than other conventional rigid foam insulation (like EPS and XPS) to achieve the same R-value, saving on building material cost and installation labor (Neopor Residential Brochure). This improved insulation performance can keep homes warmer in the winter and cooler in the summer, delivering energy savings and lowering the utility bills of a building.
GPS rigid foam insulation like standard Neopor® and Neopor® BMB provides maximum efficiency, cost-effectiveness and sustainability on construction projects.