ACROS Fukuoka's Step Garden - Greendesignetc.net
ACROS Fukuoka's Step Garden - Greendesignetc.net
ACROS Fukuoka's Step Garden - Greendesignetc.net
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<strong>ACROS</strong> FUKUOKA’S STEP GARDEN<br />
Meili Gault<br />
ENVS 662<br />
Oct 15, 2009
The building<br />
• Location: Fukuoka, Japan<br />
• Type: mixed commercial-government<br />
• Year: 1995<br />
• Size: 1,000,000 sq. ft.<br />
• Green roof size: 100,000 sq. ft.<br />
• Exhibition hall, museum,<br />
2000-seat proscenium<br />
theater, conference facilities, government<br />
and private offices, retail spaces.
Why a green roof?<br />
• City needed government office space<br />
• Only available site:<br />
Tenjin Central Park<br />
• Tenjin: only park/open<br />
space in area<br />
• To preserve public space<br />
Create new public land equal to that lost
<strong>ACROS</strong> – Two sides<br />
• North side – a modern office building
<strong>ACROS</strong> – Two sides<br />
• South side – a green hill
A stepped-terrace garden<br />
• 15 vegetated terraces<br />
• 37,000 plants, 76 species<br />
• 60 meters high
A stepped-terrace garden<br />
• Rainwater follows drainage of a natural<br />
mountain (from top to lower floors)
Green roof benefits<br />
• Natural drainage:<br />
Runoff volume reduction<br />
Partial water treatment (nitrate nitrogen)<br />
• Microclimate and cooling of the area<br />
• Decrease of roof<br />
temperature in summer<br />
(less cooling needed)<br />
• Aesthetics
Success of <strong>ACROS</strong>’s garden<br />
• Merges completely<br />
with Tenjin Central Park<br />
• Space for meditation<br />
and relaxation<br />
• Breathtaking view of<br />
Fukuoka bay and<br />
surrounding mountains
Success of <strong>ACROS</strong>’s garden<br />
• Worldwide recognition<br />
First Prize of the 2001 Japan Institute of Architects<br />
Certificate of Environmental Architecture<br />
Cover of Green Roofs – Ecological<br />
Design and Construction by the Earth<br />
Pledge Foundation<br />
• Combines private use of site with<br />
public need of green space
Q & A
Citations<br />
• Emilio Ambasz & Associates, Fukuoka Prefectural International Hall<br />
http://www.emilioambaszandassociates.com/portfolio/portfolio.cfm?Pid=7<br />
• Green Roofs: Ecological Design & Construction, Earth Pledge Foundation,<br />
2005<br />
• Runoff water quality from intensive and extensive vegetated roofs, Justyna<br />
Czemiel Berndtsson, Lars Bengtsson and Kenji Jinno, Ecological<br />
Engineering, Volume 35, Issue 3, 4 March 2009, Pages 369-380<br />
• Greenroofs.com, <strong>ACROS</strong> Fukuoka Prefectural International Hall,<br />
http://www.greenroofs.com/projects/pview.php?id=476<br />
• Field measurement on the micro climate around the building with the large<br />
stepped roof garden, Hagishima et al., 2003, http://ktlabo.cm.kyushuu.ac.jp/j/archive/pdf/acros2003_low.pdf.<br />
• Exploring Tenjin’s Attractions, Fukuoka Tenjin Style,<br />
http://style.welovetenjin.com/about/attraction/nature_01.html
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