Articles of glass for building purposes; building glass; building materials consisting of glass; building materials made of crystallized glass; building materials made of glass fibres; building materials of glass; cladding panels made of glass; clear glass for building purposes; coloured glass for windows; doors made of glass for buildings; float glass for building; foam glass beads for use as building materials; foam glass for use in building; foam glass granules for use as building materials; foam glass in the form of building materials; glass building materials; glass doors; glass elements for building panels; glass elements for windows; glass for building; glass for the windows of buildings; glass for use in building; glass for use in buildings; glass for windows; glass for windows in buildings; glass in sheet form for use in doors; glass in sheet form for use in windows; glass louvres for doors; glass louvres for windows; glass mouldings for building; glass panels for doors; glass panels for windows; glass products for building; glass roofs; glass screens; glass shapes for use in windows; glass sheet for use in building; glass slabs for use in building; glass tiles; glass walls; glass windows; glazing elements made from glass; heat protective glass for building; heat reflecting glass for building; infrared reflective glass for use in building; insulating glass (building); insulation glass for building; latticed netting of glass for building purposes; layered glass; materials of glass for use in building construction; monocellular glass microspheres being building materials; movable partitions of glass (other than furniture); planar glass for buildings; planar glass for doors; planar glass for wall partitions; planar glass for walls; plate glass (windows), for building; plate glass for building; plates made of glass for building purposes; reinforced glass for building; sealed insulating glass units for building; sheet glass for use in building; sheets of glass for building; sheets of reinforced glass for building; single layer coated safety glass for glazing buildings; single layer coloured safety glass for glazing buildings; stained-glass windows; structural elements of glass; sun louvres of glass for buildings; tempered glass for use in building; thermal insulating glass for use in building; tinted glass for use in building; toughened glass for building; transparent doors of glass for buildings; wall plaques of glass (parts of buildings); window glass (except glass for vehicle windows); window glass for building; window glass for use in building; window glass for use in construction; window glass, for building; windows made of laminated safety glass for buildings; windows made principally of glass