IR 501T/501UT Framing System

IR 501T Thermal Framing System and IR 501UT  (Ultra Thermal) Framing System combines IsoLock® thermal break technology with insulating impact resistant glazing to provide the ultimate in occupant safety and comfort.

Key Features Include:

• IR 501T/501UT is 5" (127) deep and has a 2-3/4" (69.9) sightline / Expansion mullions have a 3" (76.2) sightline
• 2-piece or 3-piece mullion options
• Screw Spline fabrication
• IR 501T has an IsoLock® lanced pour and debridge thermal break
• IR 501UT has a dual IsoLock® lanced pour and debridge thermal break
• Center set
• Outside glazed
• Permanodic® anodized finishes
• Painted finishes in standard and custom choice

Optional Features:

• Integrated entrance framing
• 350/500 IR Medium Stile - single or pairs of entrances

Product Applications:

• Impact resistant

• Storefront, ribbon window or punched opening

• Low- to mid-rise

• Single span