EPS 70-040 sandwich plates covered with roofing tar. Plates can be applied for thermal insulation in construction, among others, they can be used on old roof coverings. They do not require removal of the old covering and can be used directly under the roof coating with a slope of up to 20%, or as a base layer under the face covering with roofing tar or under concrete underlayment and for other applications for which their declared parameters are correct.