(d)all inside walls and partitions, all ceilings or tops of rooms and all walls, sides and tops of passages and staircases shall—(i)where they are painted otherwise than with washable water-paint or varnished, be re-painted or re-varnished at least once in every period of five years;(ia)where they are painted with washable water-paint, be re-painted with at least one coat of such paint at least once in every period of three years and washed at least once in every period of six months;(ii)where they are painted or varnished or where they have smooth impervious surfaces be cleaned at least once in every period of fourteen months by such method as may be prescribed;(iii)in any other case, be kept white washed or colourwashed, and the white-washing or colourwashing shall be carried out at least once in every period of fourteen months;(dd)all doors and window frames and other wooden or metallic framework and shutters shall be kept painted or varnished and the painting or varnishing shall be carried out at least once in every period of five years;