IR 521/521T/521UT Storefront Framing System

The IR 521/521T/521UT Storefront Framing System leads the way for protection, aesthetics and thermal performance. Our first ever pre-glazed impact-rated storefront system combines thinner sightlines and ultra-thermal capabilities with Missile Level D and Level E impact protection and offers incredible installation versatility using pre-glazed framing members. It is designed and engineered for single-span storefronts, low- to mid-rise ribbon windows and punched opening applications. The system is available pre-glazed, either inside or outside glazed, to meet a diverse range of project requirements and is hurricane impact-tested against windborne debris with Florida Product Approval (FPA) and Texas Department of Insurance (TDI) evaluation, demonstrating superior protection and the ability to enhance the long-term value and provide occupant safety. – Higher span options up to 138 inches – Thermal, non-thermal and ultra-thermal options – Pre-glazed framing members – Inside and outside glazed – Tested to a Design Pressure of 70 psf