Where the penetration of a curtain wall by water or moisture occurs, or where condensation cannot be prevented, provision shall be made for the collection and discharge of any seepage or condensed water without damage to the curtain wall.

如有水或水分渗入幕墙的情况出现，或如无法防止冷凝，则须设有将任何渗漏或冷凝的水 收集和排去的设施，而不致令幕墙受损。

http://www.legislation.gov.hk/eng/index.htm 07.11.2011

http://www.legislation.gov.hk/eng/index.htm 07.11.2011