Water-retaining pavement
Marunouchi Park Building, Japan
Benefits:
The water retained in the pavement can have an evaporative cooling effect on the air blowing towards the
building. As a result, temperature all-around of the building can be cooled down, and its occupants can
enjoy cool breeze inside.
The adoption of rainwater-using water-retaining pavement:
Water-retaining pavement is adopted for part of the courtyard, and on fine days in summer, water is
supplied from the feed-water pipe installed beneath the pavement.
Source: Obayashi Corporation Technical Research Institute, Sony City Osaki
GREEN TIPS
Placement of greenery should respect the shop front
When designing a shopping mall, business and operational needs must be considered. Visibility of and
accessibility to all shops are important. Greenery introduced outside or inside the shopping mall should
not block any shop fronts. Blockage to shop fronts can be avoided by proper selection of plant type and
placement of greenery.
Outdoor greenery:
• Avoid introduction of greenery that will block shop fronts from view or reduce access to the shops.
• Avoid planting trees directly in front of shop fronts or interrupting the movement of shoppers.
• Avoid placing raised planters in front of shop fronts.
• Avoid placing greenery at locations that may interrupt movement of shoppers.
• Allow overhead and underground spaces for tree planting.
• Check out the mature size of plant species, in particular trees to avoid over pruning in the future.
Indoor greenery:
• Avoid the introduction of greenery that will block the shop front from view or reduce access to shops.
• Avoid placing greenery at locations that may interrupt the movement of shoppers.
• Avoid placing indoor planters directly in front of shop fronts.
Alternatives for cooling the intake air temperature in lieu of greenery:
• Evaporative cooling – consider the use of permeable hard paving material with the built-in water supply
system where water is evaporated through the hard paved surfaces during the hot summer days.
4
Green design for shopping malls and shop spaces
4.2
Natural ventilation for shopping malls and shop spaces
4.2.5 Professional help
It is important to engage professionals for detailed consultation on the design of natural ventilation at shopping malls and
in shop spaces. The following is a list of references for obtaining professional help:
• Registered architects – Appendix A (1)
• Authorised persons (AP) & registered structural engineers (RSE) – Appendix A (2)
• Registered professional engineers (RPE) in the building services discipline – Appendix A (4)
•
Appendix A (7)
• Registered Professional Surveyor in the building surveying or property and facility management discipline – Appendix A (9)
106 Hong Kong Green Shop Guide
