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NAHB Green Building Guidelines

The National Association of Home Builders (NAHB) has established Model GREEN Building Guidelines for the “mainstream builder” to serve as a tool kit for home builder associations to create new Green Building Programs in their areas.
Much like LEED criteria, these guidelines incorporate environmental considerations into every phase of the building process. According to the NAHB, “That means that during the design, construction, and operation of a home, energy and water efficiency, lot development, resource efficient building design and materials, indoor environmental air quality, homeowner maintenance, and the home’s overall impact on the environment are all taken into account.”
The Green Building program has eight guiding principles.

Lot Design, Preparation, and Development—Saving trees, construction of onsite storm water retention/infiltration, orienting houses to maximize passive solar heating and cooling.
Resource Efficiency—Using resource-efficient materials, reducing jobsite waste, basing the selection of materials on environmental impact.
Energy Efficiency—Adopting a “whole systems” approach to maximized energy performance: heating and cooling, windows, building envelope, duct sealing, and proper placement of air and vapor barriers.
Water Efficiency—Using efficient water delivery systems.
Indoor Environmental Quality—Controlling, diluting, and capturing the effects of potential indoor contaminants, especially chemicals that can off-gas from building materials.
Operation, Maintenance, and Homeowner Education—Providing homeowners with a manual that explains proper operation and maintenance procedures, offering alternatives to toxic cleaning products and lawn
and garden chemicals, and pointing out water-saving practices.
Global Impact—Avoiding items that are a by-product of home construction, like paints that have high volatile organic compounds (VOC).
Site Planning and Land Development—Considering the entire community and existing infrastructure in addition to the additional building(s)

Green Building with Vinyl Siding, Polymer Siding, and Trim
Builders who practice Green Building techniques can earn points,
much in the same way as the LEED point system. Qualifying buildings can earn three different Green Building ratings: Bronze (237 points), Silver (311 points), or Gold (395 points). Click here for a list of CertainTeed products that can earn NAHB Green Building points.
Builders who use CertainTeed siding and trim may qualify for Green Building points in four categories.

Resource Efficiency—Our vinyl and polymer products are typically made using some recycled products, and some of our products contain as much as 80% recycled material. Using recycled material protects our environment by finding a use for material that would otherwise be landfilled. In addition, our manufacturing plants regrind and recycle products that do not meet our rigid manufacturing specifications.
This regrind is then incorporated into the manufacturing process. In fact, one of our plants has achieved nearly 100% recycling of all plant waste.



  CertainTeed siding and trim require no on-site finishing, which minimizes the environmental impact of painting or staining siding materials and reduces installation costs for the builder. They never need scraping and painting and can be cleaned with a mild soap and water.
Energy Efficiency—Properly installed, vinyl and polymer siding form a complete building envelope that does not conduct heat or cold. Also, Triple 3-1/3" InvisiVent Ventilated Soffit delivers the ASHRAE-prescribed amount of ventilation to attic areas.
Locally Available Indigenous Materials—CertainTeed’s vinyl and polymer building products are shipped from one of three manufacturing facilities, ensuring that you are rarely more than 300 miles from a factory location. In addition, we ship the majority of our prducts by rail. This reduces the carbon footprint for transportation of our raw materials compared to materials shipped exclusively by truck.
Operation, Maintenance, and Homeowner Education—CertainTeed makes maintenance and cleaning instructions available to every homeowner. These important instructions are included with the printed warranty builders leave at the end of every job.
 


CertainTeed vinyl and polymer building products that are extracted,
processed, and manufactured within 300 miles of the jobsite can earn
NAHB Green Building points for your project. The areas indicated on
this map qualify for NAHB points under Locally Available, Indigenous
Materials


For More Information

For more information on the NAHB’s Model Green Home Building guidelines, call 800-368-5242 x8290 or visit www.nahb.org/gbg. For information about earning LEED and NAHB points with specific CertainTeed products, call our Sales Support Group at 800-233-8990.




NAHB Green Building Points
Listed below is a sampling of CertainTeed siding and trim products that can earn NAHB Green Building points.
NAHB GUIDELINE REQUIREMENT POSSIBLE
POINTS
CERTAINTEED
PRODUCT
2.1.5 ENERGY STAR Labeled Home Improve the overall energy performance of the home. Points are earned by exceeding a base HERS Index (85 for Southern States, 80 for Northern States) 4 All siding and trim
2.2.8 Use termite-resistant materials for walls, floor joists, trusses, exterior
decks, and other exterior wood in regions known to be termite infested.
Verify that the material is used. 7 All siding and trim
2.4.1 Use recycled-content building materials. Use at least two recycled content materials for 3 points. Each additional
material will add a point.
3-6 Jackson plant:
Newtown and
Monogram
2.8.1 Use locally available, indigenous materials. To earn 3 points, incorporate at least one type of locally available, indigenous material into the home’s construction. Additional points can be
earned for each locally available, indigenous material.
3-5 Products from
Jackson,
McPherson, and
Social Circle
3.2.1 Increase building energy efficiency. Points are based on the percent increase in energy efficiency over the
baseline IECC 2003.
Up to 100 CedarBoards
Insulated Siding
OR
3.3.1 Increase the effective R-value of the building envelope. Use advanced framing techniques, continuous insulation, and/or
integrated structural insulating system.
Measures may include insulated corners and continuous insulation on
exterior walls.
8 CedarBoards
Insulated Siding
2.8.2 Based on life-cycle assessment (LCA), use the most environmentally
preferable product for the building component.
A life cycle assessment (LCA) compares the cradle-to-grave
environmental effects and costs of common building materials. Modeling
tools such as Athena™ examine the life-cycle environmental effects of a
complete structure or of individual assemblies. Software such as BEES
can also identify the life-cycle costs of select building components.
8 All