Expanded Polystyrene (EPS) is a lightweight, closed cell, rigid, plastic foam insulation material produced from solid beads of polystyrene. The EPS beads are expanded and then molded into large EPS Blocks then used in walls, roofs, floors, attics, crawl spaces, EIFS, stucco, and architectural shapes. EPS offers design flexibility, high R-Values for thermal insulation, superior dimensional stability, and resistance to moisture absorption and physical degradation.

EPS is the ideal, cost-effective and easy-to-use material in all types of buildings, from houses and offices to factories and schools. StarRfoam meets or exceeds the requirements of ASTM C578, Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.

Thermal resistance is an index of a material’s resistance to the flow of heat. The higher the R-value, the better the resistance to the flow of heat (Btu’s) and the better the insulation. EPS is 98 percent air, and is therefore an excellent thermal insulator and far better coat per insulation value compared to other insulators. The benefit of EPS is not made with blowing agents, such as HCFC and therefore the R Value is stable and does not change over time.

Long-term exposure to sunlight causes yellowing of the surface due to ultraviolet light, however, this has little effect on mechanical properties. If stored outdoors, cover EPS with opaque polyethylene film, tarps, or similar material

Some EPS applications must be independently QC certified by a third party testing and QA agency recognized by code. Material shall be tested and labeled in compliance with applicable code and industry standard requirements. EPS has been used in construction for over 30 years because it combines high R-Value and rigid strength with resiliency.

Thermal plastic insulation is combustible and should be protected from flame and other heat source. It should be applied according to the applicable building code, include the requirement for a 15 minute thermal barrier between itself and the interior of the building.