This month we introduced you to our new IR 501UT (Ultra Thermal) Framing System. Safety and energy efficiency are two key considerations when designing buildings today. Building codes mandate increased thermal performance and coastal areas require enhanced safety for occupants. Kawneer’s IR 501UT (Ultra Thermal) framing system addresses these growing demands.

By employing our “dual” IsoLock® thermal break into a hurricane resistant framing system, we are able to maximize thermal performance without compromising structural or impact resistance performance. In addition, advanced, thermally broken storefront systems allow building owners to take advantage of tax credit incentive programs and environmental building certifications, such as U.S. Green Building Council’s (USGBC) Leadership in Energy and Environmental Design (LEED®*).

Depending on glass type, the overall system U-factor can be increased by as much as four to six percent to combine superior aesthetics with even further improved thermal performance. Kawneer is the only commercial manufacturer using a dual thermal break with an impact resistant product to achieve enhanced thermal performance.

For more information, visit or contact your Kawneer sales representative.