Rafters; Rafters primarily of metal; Roofing support components; Wall or facade support components; Structural support components for roofs; Structural support components for walls or facades; Fixtures and fittings for all of the foregoing; Fixtures and fittings primarily of metal

Elements (not of metal) supported on purlins; Elements (not of metal) supported on rafters; Roofing systems; Roofing systems primarily not of metal; Wall systems; facade systems; Wall systems primarily not of metal incorporating support components; Facade systems primarily not of metal incorporating support components; Fixtures and fittings for all of the foregoing; Fixtures and fittings primarily not of metal for all the forgoing