Green Roofs & Walls
方煒 彙整
台大生機系
Green Roofs
科學人 第76期 (2008/6)
2006美國
已完工的
綠屋頂
(平方米)
About Green Roofs
• A green roof system is an extension of the existing roof
which involves a high quality water proofing and root
repellant system, a drainage system, filter cloth, a
lightweight growing medium and plants.
• Green roof systems may be modular, with drainage
layers, filter cloth, growing media and plants already
prepared in movable, interlocking grids, or, each
component of the system may be installed separately.
Green roof development involves the creation of
"contained" green space on top of a human-made
structure. This green space could be below, at or above
grade, but in all cases the plants are not planted in the
"ground'. Green roofs can provide a wide range of public
and private benefits.
Principal Green Roof Technology Components Source: National
Research Council, Institute for Research in Construction
http://www.greenroofs.org/index.php?option=com_content&task=view&id=26&Itemid=40
Two types of green roofs
• Extensive green roofs range from one to five
inches in soil depth, normally consist of mosses,
herbs and grasses, and are built primarily for
their environmental benefits rather than public
access.
• Intensive green roofs require at least a foot of
soil depth, an elaborate irrigation and drainage
system, and require maintenance. Intensive
green roofs contain trees and shrubs and are
typically designed to be publicly accessible.
Green roofs differ from a rooftop
garden or a container garden
• because green roofs are an extension of
the actual roof.
• This “extension” is created by using
– a specially designed root repelling membrane
– a drainage system
– a lightweight growing medium,
– and plants appropriate for the size and depth
of the green roof.
Some of the benefits green
roofs provide
• include
– storm water management (through
retention/filtration),
– water and air quality improvement,
– SMOG reduction
– increased life expectancy of roof membranes
– noise reduction
– increased energy efficiency
– and biodiversity preservation.
Green roof implementation has
been growing
• Green roof implementation has been growing across
Europe since the 1980s. Stimulated largely by state
grants and municipal planning policies, countries such as
Germany now benefit from over 10 million square metres
of greened roof space.
• Although leaks have been a fear and sometimes a
deterrent for developers considering a green roof – this
is a misperception. Improved green roof technology has
produced reliable products such as waterproof
membranes and root-repelling agents, which prevent
roots from penetrating the roof deck
Greenhouse on roof is greenroof ?
Garden Shed - Raleigh, NC
http://www.asla.org/land/050205/greenroofcentral.html
Green Roof links
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Building Biology and Ecology Institute (NZ)
Building Biology Australia
Centre for Green Roof Research (Penn, US)
Committee members only
Eco Media
Fytogreen Australia
Green Building Council of Australia
Green Roofs For Healthy Cities - US
Green Roofs US industry link
Healthy Buildings Australia
International Journal of Building and Environment
Restless Treehouse
Sustainable Cities Network
Sustainable insight bookstor
Sustainable Melbourne
Urban Design Forum
Victorian Eco-Innovation Lab
http://www.greenroofs.org/
http://www.urbanag.org.au/Greenroofs_Australia.html
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GREEN ROOFS AUSTRALIA (GRA)
• GRA HOME
GRA COMMITTEE SITE
GRA MEMBERS NEWSLETTER
Green Walls