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Partners and Certifications


AAMA (American Manufacturers' Association) 


For over 60 years, AAMA (American Architectural Manufacturers Association) has been recognized around the world for the development of standards that provide third-party validation of product performance and quality. At AAMA, the continuing objective is to develop the highest level of technical expertise and to support member companies with business services, marketing research and marketing programs that make practical contributions to our members' success and profitability. Every year, AAMA proactively and effectively influences codes, construction and specification issues. On both a regional and national basis, AAMA continuously monitors and reports legislative activities to keep you up-to-date on important developments.

ASTM (American Society for Testing and Materials)


ASTM is a not-for-profit organization that provides a forum for the development and publication of voluntary consensus standards for materials, products, systems and services. In over 130 varied industry areas, ASTM standards serve as a basis for manufacturing, procurement, and regulatory activities. ASTM International provides standards that are accepted in research and development, product testing and quality systems.


Energy Star Logo

ENERGY STAR is a voluntary partnership between the US Department of Energy (US DOE), the US Environmental Protection Agency (EPA) and the fenestration industry. It is designed to assist consumers in the recognition of energy efficient products - and promote the environmental and economic benefits of these products through the ENERGY STAR label and other activities. Each and every Preservation Window manufactured with the EnergyMaxx® Insulating Glass Package qualifies as ENERGY STAR compliant in all US Climate Zones.

Preservation Windows, when purchased with qualifying EnergyMaxx® insulated glass packages, have earned the ENERGY STAR Most Efficient 2019 designation for meeting rigorous ENERGY STAR criteria. Learn more.

NFRC (National Fenestration Rating Council)


The NFRC (National Fenestration Rating Council) establishes test criteria that set the standards for performance ratings for manufacturers of window and door products. The 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. The primary goal of the NFRC is to provide accurate information on the energy performance of these products.

USGBC (U.S. Green Building Council)


The U.S. Green Building Council is a non-profit organization committed to a prosperous and sustainable future for our nation through cost-efficient and energy-saving green buildings.

USGBC and related logo is a trademark owned by the U.S. Green Building Council and is used by permission.


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