b) The main functions of floors are to provide a flat surface, to support load, sound, heat and fire insulator, also act as a divider or upper part as a ceiling to the occupants. Critically examine a floor/slab and state precisely what might be the causes of water lodging in corridors due to driving rain. AN,9 2 C) There are several factors considered appropriate to floor or slab construction from, structural timber, in situ plain and reinforced concrete and precast self-centering concrete floors. As an Engineer, produce design considerations and functions of the floor(slab) must fulfill. CR,9