Insulation boards made of Neopor® are used for warm roof constructions. They are suitable for almost all conceivable sealing materials, as well as protective and top layers. Environmentally friendly and economical flat roofs are realized with insulation boards made of Neopor®. An additional thermal insulation layer with Neopor® boards is used for roof renovations. This modernizes the flat roof to meet today’s thermal insulation standards.