Quality
Gentek Windows . . . Independently Tested and Certified
A powerful alliance of beauty and strength, Gentek windows meet or exceed nationally recognized and accepted American Architectural Manufacturers Association (AAMA) test standards and criteria. Using independent testing and certification agencies, our windows consistently earn high marks for quality and performance.

Resistant to air infiltration according to rigorous testing procedures of the American Society for Testing and Materials (ASTM) - ASTM E 283.
Resistant to water infiltration in which the equivalent of 8" of rain per hour is blown onto the window at a simulated wind speed of approximately 60 mph - ASTM E 547.
Resistant to damage from high winds in tests simulating winds of more than 155 mph (the same wind speed reserved for Category 5 hurricanes). Gentek windows maintained their structural strength and integrity - ASTM E 330.