Friday, November 11, 2011
Tuesday, November 8, 2011
Adding it up to Green
Monday, November 7, 2011
2.3.4-Adding It Up to Green
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Conclusion
1. What types of professionals should be included on a project team and throughout the project in order to obtain a LEED ID credit?
The person with the credential must be a principal member of the project team, and not a member of the verification team, for example not the Green Rater or the project. The person with the credential must play an ongoing role on the project team, including participation in meetings, etc. The credential must be earned prior to the project's preliminary reating. There are currently no credentials or levels of experience that are considered equivalent to LEED AP Homes.
2. What specific solar orientation practices can earn LEED credit?
a.) The glazing area on the north- and south-facing walls of the building is at least 50% greater than the sum of the glazing area on the eat- and west- facing walls.
b.) THe east-west axis of the building is within 15 degreees of due east-wet
c.) The roof has a minimum of 450 square feet of south-facing area that is oriented apprpriately for solar applications.
d.) At least 90% of the glazing on the south-facing wall is completely shaded (using shading, overhands, etc.) at noon on June 21 and unshaded at noon on December 21.
b.) THe east-west axis of the building is within 15 degreees of due east-wet
c.) The roof has a minimum of 450 square feet of south-facing area that is oriented apprpriately for solar applications.
d.) At least 90% of the glazing on the south-facing wall is completely shaded (using shading, overhands, etc.) at noon on June 21 and unshaded at noon on December 21.
3. What types of sites should be avoided in order to obtain LEED credit?
Sites that are less than 75% previously developed should be avoided. If the site was already 75% previously developed, then LL 3.3 should be used. The site should not disturb other previously built sites within 100 feet. It is not allowed to use land that is reserved for endangered species, and it is generally not allowed to use land that was once parkland.
4. What basic landscape design practices should be followed in order to obtain LEED credits?
4. What basic landscape design practices should be followed in order to obtain LEED credits?
a.) Any turf msut be drought-tolerant.
b.) Do not use turf in densely shaded areas.
c.) Do not use turf in areas with a slope of 25% (i.e., 4:1 slope),
d.) Add mulch or soil amendments as appropriate.
Mulch is any covering placed around plants to reduce erosion and water loss to help regulate soil temperature.
e.) All compacteed soil (e.g., from construction vehicles) must be tilled to at least 6 inches.
b.) Do not use turf in densely shaded areas.
c.) Do not use turf in areas with a slope of 25% (i.e., 4:1 slope),
d.) Add mulch or soil amendments as appropriate.
Mulch is any covering placed around plants to reduce erosion and water loss to help regulate soil temperature.
e.) All compacteed soil (e.g., from construction vehicles) must be tilled to at least 6 inches.
5. What are some ways that architects can obtain LEED credits concerning water efficiency?
The architects can obtrain partial credit by collecting water from 25-50% of the roofline. To obtain more points, the architect must create a water tank to collect over 50% of the roofline in the event of over 1 inch of rain.
Achieving a reduction in estimated outdoor water use of 65% or more will result in 1 ID point. This will increase at increments of 5% up to 80% and 4 points.
Flow restrictors can be used to lower the flow rates of water from the toilets. You can't use flush valve conversion devices and toilet tank bags to earn credit.
Achieving a reduction in estimated outdoor water use of 65% or more will result in 1 ID point. This will increase at increments of 5% up to 80% and 4 points.
Flow restrictors can be used to lower the flow rates of water from the toilets. You can't use flush valve conversion devices and toilet tank bags to earn credit.
6. What building components or systems can be enhanced to contribute to LEED credits that promote energy efficiency?
Pipe insulation, advanced lighting packages, and the landscape can be utilized to enhance energy efficiency of the build. The roof can be beneficial by collecting rainwater, and thus saving on the costs and use of well or city water.
7. How can the choices of (or use of) materials affect the LEED rating of a home
Using modern insulation in replacement of outdated insulation that was offered in older buildings can result in a greater LEED rating. Using vernacular architecture is a good choice, to reduce the cost and emissions of transporting the goods to the build site. Heat pumps and air conditioners shall not be over 15% bigger than what the calculated size should be. Having a shorter ceiling height can be advantageous because there is a smaller volume to be heated.
Using modern insulation in replacement of outdated insulation that was offered in older buildings can result in a greater LEED rating. Using vernacular architecture is a good choice, to reduce the cost and emissions of transporting the goods to the build site. Heat pumps and air conditioners shall not be over 15% bigger than what the calculated size should be. Having a shorter ceiling height can be advantageous because there is a smaller volume to be heated.
8. What is required to earn LEED credits with respect to moisture and indoor pollutants in kitchens and bathrooms?
For any body-sized cleansing areas, such as a bathtub, shower, or spa area, using nonpaper-faced backer board on the walls. Use water-resistant flooring, and don't install carpet, in the kitchen, bathroom, laundry rooms, and spa areas. Any entryway wihtin three feet of the exterior door shall also use water-resistant flooring. Install a drain and drain pan near any tank water heaters in or over a living space. Conventional clothes dryers require exhausts directly to the outdoors.
9. From a public relations perspective, why might a company want to have a high LEED score?
It makes the company appear to be more eco-friendly, and they can use this as an advertising edge. A higher LEED score can also lead to a lower operating cost compared to other homes, and lower impact on the environment.
It makes the company appear to be more eco-friendly, and they can use this as an advertising edge. A higher LEED score can also lead to a lower operating cost compared to other homes, and lower impact on the environment.
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