BUILDING MATERIALS, NAMELY, INTERIOR AND EXTERIOR PREFABRICATED MOLDINGS MADE OF POLYURETHANE FOAM COATED WITH AN EXTERIOR LAYER OF PLASTER, LATEX BASED COATING, ADHESIVES, REINFORCING MESH AND/OR CEMENTITIOUS COATINGS AND PREFABRICATED NON-METAL WALL PANELS AND NON-METAL EXTERIOR CLADDING