Gana Glazing Manual -2004-.pdf !exclusive! Jun 2026

When a 2004 IGU fails (fogging between panes), the original spec likely referenced the 2004 GANA standards for desiccant load and moisture vapor transmission rates. Using the original manual gives you the legal and technical baseline to assess whether the unit failed due to age or due to original non-compliance.

Why focus on the 2004 version? In the construction industry, standards are constantly updated to reflect new technologies, safety codes, and environmental regulations. However, the mid-2000s were a transitional era for the glazing industry. The use of Insulating Glass Units (IGUs) was becoming standard, laminated glass was increasingly used for safety and sound control, and low-emissivity (Low-E) coatings were beginning to dominate the energy efficiency market. GANA Glazing Manual -2004-.pdf