BSC Ltd.
Hinsdale, IL 60521
United States
ph: 630.323.0123
fax: 866.323.0113
Bob
There are many reasons for owning or purchasing a green home.
The technologies and practices required to build a green home to certain criteria may result in lower costs to operate the home. Energy-efficient appliances, lighting systems and HVAC equipment result in lower energy consumption compared to other models. Using less water through water-conserving faucets, showers, toilets and irrigation systems may also result in less water consumption. Properly sized HVAC systems mean that less energy is needed to condition spaces. Employing technologies such as photovoltaic panels for solar electricity and water heating and geothermal heat exchangers could reduce dependence on public utilities as well.
Effective stormwater management and landscaping could mean less time maintaining outside spaces. Also, green building practices lead to the use of some longer-performing materials and careful construction assemblies. Drained foundations, water spouts on gutters and flashing around windows and doors might reduce the opportunity for system failure within the home due to moisture intrusion.
Indoor environmental quality is one of the guiding principles of the NAHB Model Green Home Building Guidelines. Homes which allow for proper air exchange through ventilation, and low-emitting products like low- or no-VOC paints reduce off-gassing. Further, green building practices look at reducing the opportunity for moisture intrusion. The efficient HVAC systems, windows and floor plans also mean that heating and cooling is better distributed throughout the home.
Increased energy and water efficiency in construction could lead to decreased energy and water consumption in a home throughout its lifespan. Further, some renewable, recycled, and other efficient building products used in green home construction may reduce the impact on natural resources. Also, green homes often include resource, waste reduction and recycling amenities.
First published in 2005, the NAHB Model Green Home Building Guidelines were written by a group of builders, researchers, environmental experts and designers to provide guidance for builders engaged in or interested in green building products and practices for residential design, development and construction. The Guidelines were also written to serve as a "baseline" so that NAHB members could easily develop local green building programs. Comprised of two parts, the Guidelines cover seven areas of guiding principles: Lot Design; Resource Efficiency; Energy Efficiency; Water Efficiency, Indoor Environmental Quality; Homeowner Education; and Global Impact. The Guidelines offer three levels of green building- Bronze, Silver, and Gold.
Part One of the Guidelines contains a checklist of all these items; builders navigate through the checklist, assigning point values for each line item completed. At all levels, there is a minimum number of points required for each of the seven guiding principles to ensure that all aspects of green building are addressed to some degree and that there is a balanced, whole-house systems approach. After reaching the point thresholds, an additional 100 points must be achieved by implementing any of the remaining line items. Part Two is a User Guide that helps explain each concept of the checklist, including intent, how to implement and additional resources.
NAHB Model Green Home Building Guidelines
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BSC Ltd.
Hinsdale, IL 60521
United States
ph: 630.323.0123
fax: 866.323.0113
Bob