IR 521/521T/521UT Storefront Framing System

  • Missile Level D and Missile Level E Impact Protection
  • Thinner Sightlines
  • Ultra-thermal Capabilities
Protection Meets Perfection

As pioneers in storefront framing, we are dedicated to developing products that surpass expectations. Our new 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, the IR 521 combines thinner sightlines and ultra-thermal capabilities with Missile Level D and Missile Level E impact protection.

The IR 521 Storefront Framing System 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.

Product Highlights:
  • Redesigned 5” storefront chassis
  • 2 1/2” Sightlines
  • Higher span options up to 138 inches
  • Thermal, non-thermal and ultra-thermal options
  • Pre-glazed framing members
  • Can be installed from interior or exterior of building
  • Tested to a Design Pressure of 70 psf

The system is available pre-glazed, either inside or outside glazed,
to meet a diverse range of project requirements.

The IR 521/521T/521UT Storefront Framing System 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.

Balancing responsible design, engineering and manufacturing

At Kawneer, we take great pride in creating products that champion sustainable facade design and innovation. This product is only available using low carbon aluminum, with a minimum 50% recycled content and the remaining primary aluminum is sourced from a hydroelectric smelter. We offer total product ingredient transparency, from aluminum billet to building facade, providing key information on our products and how they are manufactured. The IR 521 has Kawneer’s full material transparency statement available and is going through the Environmental Product Declaration (EPD) review process.