From cob to prefab and beyond
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Transcript of From cob to prefab and beyond
FROM COB TO PREFAB AND
BEYOND
What’s the Matter with Buildings?
According to the World Watch Institute, buildings account for one fourth of the world's wood harvest, two fifths of its material and energy usage, and one sixth of its fresh water usage.
Natural Building
Doing more with less is the key to working with, and not against, the
natural world that supports us.
NATURAL BUILDING:
Adobe
One half of the world’s population, approximately 3 billion people, lives or
works in buildings constructed of earth.
Adobe bricks near construction site
Adobe house under construction
Adobe construction
Typical damage to adobe construction
Seismic upgrading for adobe
Rebuilding Gaza with clay bricks – using unsafe techniques.
EcoBuild Network is working on approval of ASTM
Engineering is already clearly ready to make earth structures safe
www.ecobuildnetwork.org
Around the world…
Africa
Mexico
California
New Zealand
Persia
Bolivia
China
New Mexico
Greece
Rammed earth
In Canada…….
Poured earth wall in Petaluma
Cob
Poured earth
Just add water…….sand, clay and straw
Cob
Cob Buildings in Europe
Strawbale
Real Goods Solar Living Institute
Truth Windows
Stone
6th Century Ireland
Earthships
Bamboo
Bamboo
Panelized Home Construction
Structurally Insulated PanelsSIPS
SIPS
SIPS
Rethinking the Material World
“Beat, heat and treat is a good methodology, and it built the country,” says Brandon Tinianov, chief technology officer of Serious Materials.
“But we have to approach it a little differently because our eyes are now open.”
Dwell 2008
“So if you want to change something big, you have to change the
material first.” Material science is design at the
molecular level. How molecules are shaped, and how
those shapes link together, determines the physical properties.
Ordered molecules, like diamonds, are harder and stiffer, while messy molecules can be pulled apart.
Small changes, like turning iron into steel by adding carbon, have world-changing impact on
what can be imagined, planned and built.
Green plastics & Biomimicry
How does nature make things? Plants make things out of CO2 and then
assemble them into bark and leaves. Replacing complex liquid carbon (petroleum)
with strings of simple carbon oxides also requires less energy than standard polymer making.
It’s a low-temperature, low-pressure reaction. Charles Hamilton, Novomer Inc.
Innovations material science is currently developing...
Cost-competitive, low-energy ways of making cement, drywall, composites and other building materials
Eco Rock
Prefab “Green” Homes
West Coast Green's SG Blocks, Harbinger House
Made from cargo containers
i-house prefab
Buckminster Fuller’s Geodesic Domes
Paolo Soleri - Arcosanti
Eugene Tsui -
Jonathan Zimmerman - AIA
Z Domes
WE DID NOT INHERIT THE EARTH FROM OUR PARENTS. WE ARE
BORROWING IT FROM OUR CHILDREN.CHIEF SEATTLE