ABSTRACT
19.1 INTRODUCTION Occasionally, according to the design of a property, there is a need to conceal vertical and/or horizontal pipes to improve the appearance of the room(s) that they pass through. These rooms are usually the bathroom or kitchen. The pipes may be 110 mm diameter soil pipes, 40 mm diameter waste pipes, or various small-diameter copper supply pipes. If the supply pipes are fitted with stopcocks, provision must be made for their access when the pipes are to be concealed. Basically, the two arrangements for concealing pipes are pipe casings and framed ducts.
