PREFABRICATED BATHROOM UNIT (PBU)
The bathroom is an indispensable component in all buildings. The conventional method of constructing a bathroom on site involves many labour intensive building trades such as brick or block work, waterprooﬁng, ﬁnishes, plumbing, sanitary, electrical works and accessories installation. This requires extensive manpower, time and co-ordination among trades within a restricted site environment.
A prefabricated bathroom unit (PBU) refers to a bathroom unit preassembled off-site complete with ﬁnishes, sanitary wares, concealed pipes, conduits, ceiling and bathroom cabinets before installing into position. A PBU which integrates various trades and constructed in an off-site factory environment can achieve consistent and high quality workmanship and improved site productivity.
The introduction of PBU can address the extensive on-site manpower, time, and coordination issues. Off-site fabrication can run parallel to other construction site activities, thereby shortening the construction cycle. The effects of inclement weather downtime are also minimized. Other beneﬁts of PBU include better control of materials, streamlined factory fabrication and production processes, less co-ordination with multiple trades/parties, less abortive work for construction sites, etc.
PBUs have been widely used around the world including Japan, USA, UK, Italy and many other countries. There are many types and variants of PBU in the market. In Singapore, both HDB and private developers have used PBUs in some projects since the mid-90s.