Kawneer Trifab® 451UT Framing System

Trifab® 451UT (Ultra Thermal) framing system provides improved thermal performance,
to increase energy efficiency by employing a "dual" Isolock® thermal break.


Key Features Include:

  • Trifab® 451UT is 4-1/2" deep with a 2" sightline
  • Center Plane glass application
  • Flush glazed from either the inside or outside
  • Screw Spline fabrication
  • Dual Isolock® lanced and debridged Azon thermal break
  • Infill options up to 1-1/8" thickness
  • Permanodic® anodized finishes in 7 choices
  • Painted finishes in standard and custom choices Trifab® 451UT

Product Applications:
  • Storefront, Ribbon Window or Punched Openings
  • Single-span
  • Integrated entrance framing allowing Kawneer standard entrances or other specialty entrances to be incorporated
  • Kawneer windows or GLASSvent™ are easily incorporated

For more detailed information on this product, reference the document(s) available for download below.

Kawneer North America is the leading manufacturer of architectural aluminum building products and systems
for the commercial construction industry. Read more about Kawneer Trifab® 451UT . . .


The Kawneer logo and Trifab® 451UT are registered trademarks of Kawneer, an Alcoa Company.