Change Buildings, Save the World

A study has been released (2mb PDF) by Commission for Environmental Cooperation; and Celsias has put up a nice summery for us. They note that a simple way for us to lower our impact on the environment is to change how we construct buildings in North America.

Existing building techniques can be used to improve efficiency of our buildings.

In Canada, buildings are responsible for:

  • 33 % of all energy used;
  • 50 % of natural resources consumed;
  • 12 % of non-industrial water used;
  • 25 % of landfill waste generated;
  • 10 % of airborne particulates produced; and
  • 35 % of greenhouse gases emitted.

In Mexico, buildings are responsible for:

  • 17 % of all energy used;
  • 25 % of all electricity used;
  • 20 % of all carbon dioxide emissions;
  • 5 % of potable water consumption; and
  • 20 % of the waste generated.

Solar Leafs for Homes

Solar leafsThis is a neat idea that may or may not go with your aesthetic tastes, but should go with your green tastes. Inhabitat says that solar leafs can hang off your house while providing you power. Like leaves on trees, these leafs use the sun to make energy, and unlike trees, these solar shingles also get power from the wind.

Using a series of flexible solar cells as leaves, GROW takes the shape of ivy growing on a building- the leaves are solar cells while the wind that causes them to flutter is harvested as viable energy. Teresita hopes that the modular system would be readily available via the Moma store or Design Within Reach, rather than a commercially out-of-reach system like many traditional solar components. GROW also integrates an energy monitoring system for users to visualize their consumption. The leaves are made of 100% recyclable polyethylene, and are available in a variety of colors and opacities.

The Hexayurt Project

The Hexayurt Project is looking to house more people more efficiently. This simple housing design maybe able to help the world’s poor.

The Hexayurt is a prize-winning shelter you can build yourself for about $200 (cache). Suitable raw materials include common building materials (insulation boards,) hexacomb cardboard and plastic. You cut six 4′ x 8′ panels in half diagonally to make the roof, and use six more whole panels to form the walls. It takes about two hours. The design (cache) is in the public domain.

A Very Very Green Building

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Granted, many many years ago most places humans lived had little impact on their surrounding environment, and today we’re learning how to do that again. This time though, we got style.

Inhabitat has a story on the greenest LEED building ever built.

The building produces 15% more energy than what it consumes by using 198-panel 39.6 kilowatt solar electric system, the second largest in Wisconsin. To save on energy costs, heating and cooling will be done via a radiant system installed within the concrete floors. Proper insulation of the building, use of geothermal energy, good passive design to allow for daylighting and heating during winter and shading during summer, cross ventilation, and operable windows all contribute towards achieving this remarkable goal. Even the design of the site was carefully thought out to properly differentiate between high use and low use areas, thus diminishing the wasted energy required to heat or cool sections of the complex which would not be needed.