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Green Buildings - Alt En. + Res. Str.
Transcript of Green Buildings - Alt En. + Res. Str.
2. every building should be as small as possible
3. do not contribute to sprawl
A green building is an environmentally sustainable structure that is designed, constructed and operated to minimize the total environmental impacts.
- meeting the needs of present generations without compromising the ability of future generations to meet their needs
The goals of a green building:
A similar concept is natural building, which is usually on a smaller scale and focuses on the use of natural materials that are available locally
The "Rules" of Green Building
Use resources efficiently
Protect occupant health and improve employee productivity
Reduce waste, pollution and environmental degradation
Be cost efficient, durable, and comfortable
- maintaining ecological balance: exploiting natural resources without destroying the ecological balance of an area.
from extraction of raw materials through materials processing, manufacture, distribution, use, repair and maintenance, and disposal or recycling
Cradle to Grave
Cradle to Cradle?
Rainwater and Groundwater
Orienting windows and walls and placing awnings, porches, and trees to shade windows and roofs -- manipulate passive solar energy
Isolated Solar Gain - Use passive solar energy to heat a building via a liquid
Heat gain can occur through a sunroom
Earth cooling tubes or other passive cooling techniques can keep a solarium cool
White roofs reduce summer solar heating
White Roof Project
effective window placement (daylighting) can provide more natural light and lessen the need for electric lighting during the day
florescent lightbulbs and LEDs are more efficient alternatives to incandescent lightbulbs
Onsite generation of renewable energy can significantly reduce the environmental impact of the building
high-performance windows and extra insulation in walls, ceilings, and floors
use high performance materials
appliances and parts that can be easily maintained/replaced
Rainwater and Groundwater
using packed gravel/permeable concrete instead of conventional concrete/asphalt enhances replenishment of groundwater
using plants and trees through green roofs, rain gardens reduce rainwater run-off
collect, use, purify, and reuse water on-site
ultra-low flush toilets and low-flow shower heads
dual plumbing that recycles water in toilet flushing
use non-sewage and greywater for on-site use such as site-irrigation minimizes demands on the local aquifer
Systems and ideas similar to those used in aquaponics can be used to treat waste water on site and with fewer chemicals
reduces amount of material that is disposed of