in recent years, most new buildings have been installing split type air-conditioners on the external walls without any area for maintenance workers to stand on. after about ten years, problems arise where individual property owners have to hire scaffolding workers and maintenance workers at different times of the year, all year round, considering that there could be over 500 such machines on the external walls of a building. problems include:
(a) environmentally unfriendly, ugly urban looks.
(b) nails on walls causing possible cracks for rain water to get in.
(c) insufficient number of scaffolding workers.
wonder if relevant departments (e.g. buildings, environment, lands, etc) could issue building guidelines to developers to minimize the need for future scaffolding works on maintenance and repairs.
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