13A. Walls, etc., in showers
(1) Any area of a wall in a shower compartment or shower that ¾
(a) is within a horizontal distance of 915 mm from the shower rose; or
(b) is directly below any point that is within a horizontal distance of 915 mm from the shower rose,
shall have an impervious surface.
(2) A window within a distance of 915 mm of a shower rose shall have ¾
(a) a fixed glass;
(b) a sill that is splayed to an angle of 45 degrees from the horizontal; and
(c) a sill and frame that have an impervious surface.
[Regulation 13A inserted in Gazette 16 Nov 1973 p. 4222.]