Dow is the leader in rigid foam insulation. CSI Supply proudly carries a range of Styrofoam rigid insulation products. Please call for a quote or application information.

When you're building or remodeling, start off on the right foot...with THERMAX insulation in basements and closed crawlspaces. THERMAX insulation products deliver outstanding thermal performance, moisture resistance and fire performance that make your homes more energy-efficient from the ground up.