4331 Fibre cement flat sheet decking (2) Fibre cement flat sheet decking, fixed to framing 4332 Metal-faced flat sheet roofing (0) Metal-faced flat sheet roofing, fixed to framing 4333 Metal faced insulating panel flat sheet roofing (2) Metal-faced plastics-cored panel flat sheet roofing, fixed to framing 4334 Prefinished roof sarking (1) Sarking of cementitious wood fibre board and other boards, prefinished with copper, bituminous felt and single layer roofing membranes, fixed to roof framing to form a weatherproof roof 4335 Glass-faced panel flat sheet roofing (0) Glass-faced panel flat sheet roofing fixed to framing 4336 Solar energy-collecting flat panel roofing (0) Flat panel sheet roofing, incorporating cells for collecting solar radiation, fixed to framing 4337 Plywood roofing and decking (3) Roofs and decks of plywood, fixed to framing, usually as substrate for waterproofing 4338 Miscellaneous flat sheet roofing and decking (0) Miscellaneous flat sheet roofing and decking, as substrates, waterproofing or cladding