In some of the residences, kitchen platform is located incenter of the room and pipe work requires extending from MCV & meter (mounted on one of the wall) up to the appliance valve. Under such circumstances, pipe can be laid in flooring with adequate protection.
Pipe work passing through flooring should take the shortest practicable route and must be sleeved.
Pipe work laid in flooring shall be protected against corrosion and also against failure caused by movement. Pipes should be laid on the base concrete and avoid joints in the pipe section. A minimum of 65 mm screed is required on top of the concrete which will provide an approximate cover of 50 mm over a 12 mm installation pipe.
In case of screeded floors, the method of construction consists of a base concrete raft foundation onto which a cement screed is subsequently laid in order to obtain a satisfactory surface to accept the floor finish. In this case, copper pipes may be laid on top of the base concrete and subsequently covered by the screed, provided the pipe is protected from corrosion. Alternatively, the copper pipes may be laid through pre-formed PVC I HOPE sleeves I ducts with protective covers.
