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'''''Green design''''' is the catch-all term for a growing industry trend within the fields of ], ], and ]. Also referred to as "sustainable design" or "eco-design", the broad principles of green design are fairly simple: choose ] wherever possible; work in harmony with the natural features and resources surrounding the project site; and use materials that are sustainably grown or recycled rather than new materials from non-renewable resources. |
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Building materials may be sought within a 500-mile radius of the building site to minimize the use of fuel for transportation. The building itself may be oriented a particular direction to take advantage of naturally occurring features such as wind direction and angle of the sun. When possible, building materials may be gleaned from the site itself; for example, if a new structure is being constructed in a wooded area, wood from the trees which were cut to make room for the building would be re-used as part of the building itself. Taking advantage of available natural light reduces dependence on artificial (energy-using) light sources. Well-insulated windows, doors, and walls help reduce energy loss, thereby reducing energy usage. |
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Low-impact building materials are used wherever feasible: for example, insulation may be made from low VOC (]) emitting materials such as recycled denim, rather than the fiberglass insulation which is dangerous to breathe. To discourage insect damage, the insulation may be treated with ] Organic or milk-based paints may be used. |
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Architectural salvage and reclaimed materials are used when appropriate as well. When older buildings are demolished, frequently any good wood is reclaimed, renewed, and sold as flooring. Many other parts are reused as well, such as doors, windows, mantels, and hardware, thus reducing the consumption of new goods. When new materials are employed, green designers look for materials that are rapidly replenished, such as ], which can be harvested for commerical use after only 6 years of growth, or ], in which only the outer bark is removed for use, thus preserving the tree. |
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Good green design also reduces waste, of both energy and material. During construction phase, the goal is to reduce the amount of material going to landfills. Astutely designed buildings also help reduce the amount of waste generated by the occupants as well, by providing onsite solutions to as compost bins to reduce matter going to landfills. |
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To reduce the impact on wells or water treatments plants, several options exist. "]", wastewater from sources such as dishwashing or washing machines, can be used to flush toilets, water lawns, and wash cars. Rainwater collectors are used for similar purposes, and some homes use specially designed rainwater collectors to gather rainwater for all water use, including drinking water. |
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== External links == |
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*http://www.greenerbuildings.com/ |
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*http://www.sustainable.doe.gov/ |
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*http://www.usgbc.org/LEED/LEED_main.asp |
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*http://www.sustainabledesignguide.umn.edu/MSDG/guide2.html |
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