Abstract: A method is disclosed for the on-site surface coating of a structure, the structure being part of a construction including a plurality of structures, the method including the steps of: a) applying one or more layers of a coating system on-site to at least a part of the structure, b) arranging at least one gas catalytic infrared emitting unit in a position so that the infrared radiation is adapted for heating the one or more layers of the protective coating system on-site and c) irradiating the coated surface with infrared radiation emitted by the at least one gas catalytic infrared emitting unit on-site. The method allows the drying and/or curing of the one or more layers of the coating system to be accelerated.