Programs for the Fenestration Industry
Keystone's third party inspection and certification programs enable manufacturers of fenestration products to demonstrate compliance with the requirements of building codes, the ENERGY STAR® Windows Program and other utility/tax rebate programs.
NFRC Certification Program
Keystone is a National Fenestration Rating Council (NFRC)
licensed Inspection Agency (IA). The NFRC Certification Program offers
fenestration (window and door) manufacturers a third party verified,
nationally-recognized method for demonstrating product U Factor, Solar Heat
Gain Coefficient (SHGC) and other energy performance characteristics.Keystone Structural Performance Certification Program
The Keystone Structural Performance Certification
Program is accredited by the American National Standards Institute (ANSI),
and offers fenestration product manufacturers a third party verified,
nationally-recognized method for demonstrating product design pressure
performance.Keystone Impact Performance Certification Program
The Keystone Impact Performance Certification
Program is accredited by ANSI, and offers fenestration product
manufacturers a third party verified, nationally-recognized method for
demonstrating product resistance to flying debris resulting from hurricanes.Keystone Insulating Glass Certification Program
Keystone's Insulating Glass Certification Program
is an ANSI-accredited third party quality assurance program specific to the
insulating glass (IG) fabrication aspect of the fenestration product. The
implementation of IG program requirements will lead to improved seal
durability and longevity of IG units.