Alternative Home And Building Testing Services Businesses in the World

National Fenestration Rating Council (NFRC)

National Fenestration Rating Council (NFRC) is a non-profit, public/private organization created by the window, door and skylight industry. It is comprised of manufacturers, suppliers, builders, architects and designers, specifiers, code officials, utilities and government agencies. NFRC provides consistent ratings on window, door and skylight products. NFRC's primary goal is to provide accurate information to measure and compare the energy performance of window, door, or skylight products.

• Business type: nonprofit organization, trade association
• Product types: energy efficient homes and buildings, alternative homes and buildings, energy efficient windows.
• Address: 1300 Spring Street, Suite 500, Silver Spring, Maryland USA 20910
• Telephone: 301-589-6372
• FAX: 301-588-6342
• Web Site: http://www.nfrc.org
• E-mail: Send Email to National Fenestration Rating Council (NFRC)

Sustainable Design Group Inc.

• Business type: Home design
• Product types: solar hot water, solar PV, wind, earth brick, passive solar, composting toilets, non toxic materials, geothermal, rain water collection and more..
• Service types: Green, Solar and Zero Energy home design and project management
• Address: 22923 Wildcat Rd., Gaithersburg, Maryland USA 20882
• Telephone: 301-428-1040

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