Rigid Polyurethane Foam (PUR/PIR) is a closed-cell plastic. It is used as a factory-made thermal insulation material in the form of insulation boards or block foam, and in combination with various rigid facings as a constructional material. Rigid Polyurethane Urethane Foam maintains uniform temperature, and is the most effective insulation material for roof, wall and floor insulation. In addition to low thermal conductivity, rigid polyurethane foam (PUR/PIR) is stable and durable. Rigid Polyurethane Foam. Highly durable, with excellent insulation properties and optimum performance. Insulation Boards : With excellent mechanical strength, insulation boards made of rigid polyurethane foam (PUR/PIR) are highly resistant; they can be combined with other materials and are easy to install on the building site. Blocks : Polyurethane (PUR/PUF/PU) block foam can be cut to shape for insulating building equipment and industrial installations. In-situ Foams : In addition to factory-made polyurethane (PU/ PUR/PUF), rigid foams, in-situ foams are also used in building. They are produced with state-of-the-art equipment "in situ" on the building site itself. In-situ foams are mainly used for technical insulation applications. The in-situ foam is sprayed onto the desired surface or poured into molds, producing a seamless structure.