IKOTherm – 25 PSI Grade Polyisocyanurate Foam Insulation is designed to be part of modified bitumen, built-up, or single-ply roof systems. IKOTherm – 25 PSI Grade is composed of a select kraft paper reinforced with fiberglass strands for high strength and excellent absorption for both hot mopping and adhesive attachment methods. The product also performs well with mechanical fasteners. The product is a rigid, polyisocyanurate foam insulation with a high thermal R-value that provides outstanding insulation protection, which helps to reduce heating and cooling costs. Lightweight and easy to handle, IKOTherm – 25 PSI Grade is available in two board sizes and a range of thicknesses to meet a variety of insulation needs.