This document describes the use of CCW MiraDRAIN 9000 drainage material in the construction of an extensive green roof on a government depot building in Tuen Mun, Hong Kong. The 300 square meter green roof was installed by City Landscaping Co. Limited in April 2009. CCW MiraDRAIN 9000 was chosen for its ability to drain excessive water through its core while blocking solid particles with its woven monofilament fabric, preventing clogging. Its excellent drainage performance helps reduce structural loading on the roof.

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Tuen Mun Government Depot
Application:
Green Roof
Product:
CCW MiraDRAIN 9000
Main Contractor:
City Landscaping Co. Limited
Date:
April 2009
CCW MiraDrain 9000 has been chosen for approximately
300m2 extensive green roof as drainage material. Its core
provides a channel for excessive water to drain and its
monofilament woven fabric directly contact with soil is used
for filtration, which allows fine particles to be drained away
with the excessive water and block the large particles to enter
the core to avoid clogging occurs in drain port.
Structural loading is the most important design consideration
in green roof system. Thus, excellent drainage performance
and anti-clogging property are critical for solving this concern
by ensuring excessive water will be drained away quickly and
would not add extra loading to the structure. Moreover,
MiraDRAIN can also reduce the time and labor cost of
constructing green roof system.
Rm 1512-13,Grand Century Place, Tower 1, 193 Prince Edward Road West, Mongkok, Kowloon, Hong Kong SAR
Tel: (852) 2311-1123 Fax: (852) 2723-6019 E-mail: info@bumatech.com