The Glass Association of North America (GANA) provides the organizational structure for addressing
the needs of a diverse membership. Comprised of six Divisions and an Affiliate classification, GANA puts
members in regular contact with their peers, customers, and suppliers in an environment that facilitates the
nurturing of an understanding essential to strong, effective working relationships. GANA provides
members with premiere educational programs, publications, networking opportunities, meetings, and
conventions.
The Flat Glass Manufacturing Division (FGMD) is comprised of manufacturers of flat glass maintaining
float glass plants in North America and associate members supplying goods and services to the flat glass
industry.
GANA has developed this Guide to assist those involved in the specification, selection, and use of glass in
architectural applications. Additional GANA reference manuals and informational bulletins should be a part of
every fenestration product reference library. See page 16 for a list of additional resources.