Boards of cellulose materials for building purposes; Building boards made from wood and waterproof resins; Fibre board for use in building; Insulating boards for building purposes made from wood pulp; Non-metallic building boards; Non-metallic boards for building purposes; Particle board for use in building; Wood pulp board for building; Wood-pulp board for building; Timber building boards; Non-metallic building materials in the form of boards