The American Architectural Manufacturers Association is the source of performance standards, product certification and educational programs for the fenestration industry.

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, specifies, code officials, utilities and government agencies. NFRC provides consistent ratings on window, door and skylight products.

ASTM International is not-for-profit organization that provides a global forum for the development and publication of voluntary consensus standards for materials, products, systems, and services.

The CWDMA's mission is to represent and support all aspects of the window and door manufacturing industry, including formulating and promoting high standards of quality in manufacturing, design, marketing, distribution, sales and application of all types of window and door products.

The Institute provides technical information and products, continuing education, professional conferences, and product shows to enhance communication among all disciplines of nonresidential building design and construction and meet the industry’s need for a common system of organizing and presenting construction information.

The Canadian Standards Association is a not-for-profit membership-based association serving business, industry, government and consumers in Canada and the global marketplace.

This site is sponsored by a dedicated group of window manufacturers in order to educate consumers about the environmental benefits of using fiberglass products.

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