Windows, and transparent or translucent doors, gates and walls
14.—(1) Every window or other transparent or translucent surface in a wall or partition and every transparent or translucent surface in a door or gate shall, where necessary for reasons of health or safety—
(a)be of safety material or be protected against breakage of the transparent or translucent material; and
(b)be appropriately marked or incorporate features so as, in either case, to make it apparent.