4631 Structural glass assemblies (15) Walling, screens and partitions consisting of glass sheets, in which the glass weight, wind, impact and other loads are carried first by the structure then the glass itself and finally transmitted to trusses, glazing bars, sills, mullions and transoms by means of structural silicone or mechanical fixings (e.g. spiders). The glass sheets and any glass fins are joined directly together by adhesive sealants and/or mechanical fixings (e.g. Patches) 4632 Structural glass flooring and roofing (2) Safety and/or laminated glass and glass blocks set into a frame, fixed to framework as structural glass flooring and roofing 4633 Frameless glass doors and unframed glass screen assemblies (9) Frameless glass doors installed in openings and as part of screen assemblies of unframed glass, incorporating doors, for internal and external installation as walls and partitions 4634 Bathroom glazed screens and enclosures (15) Glazed screens installed to restrict water splash 4635 Frameless glass sliding/stacking doors (0) Multiple frameless glass doors which function as shop-fronts, external walling or as a partition when closed, with operating equipment for each sheet to slide and stack 4636 Full height frameless glass partitions (25) Full height partitions of unframed glass