4251 Aluminium composite cladding (15) Proprietary aluminium cladding systems, with aluminium faced panels, fixed to the building fabric 4252 Metal panel cladding (15) Proprietary cladding systems of unbacked metal, fixed to walls and soffits 4253 Plastics panel cladding (2) Proprietary cladding systems of backed or unbacked plastics panels 4254 Manufactured timber panel cladding systems (16) Proprietary facade panels, with plaster external face and rigid sheet internal face, fixed to the building frame 4255 Insulating cladding (9) Proprietary cladding system, consisting of foamed plastics insulating panels fixed to framing or solid substrate, and finished with fibreglass reinforced plaster 4256 Plaster on rigid sheet facade cladding (0) Proprietary wall cladding systems, with fibre cement sheeting fixed to walling and finished with fibreglass reinforced plaster 4257 Metal clad insulating cladding (15) Proprietary cladding systems, consisting of foamed plastics insulation, with steel sheet bonded to both faces 4258 Fibre reinforced cement board cladding (2) Proprietary cladding systems, consisting of thick fibre reinforced cement board panels fixed to walls and soffits or to the fabric generally 4259 Miscellaneous cladding systems (10) Proprietary panel systems, fixed to the building fabric