C.R. Laurence Co., Inc.
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United States Aluminum: Window Wall: Series TT601 Top Notch Systems

Series TT501 Window Wall Systems


U.S. Aluminum’s new TT501 Window Wall offers superior thermal performance that places it ahead of the curve and makes it a cost-effective system that requires less time and resources spent on modifying or upgrading glass to meet thermal specifications. The TT501 Window Wall utilizes advanced thermal 30 mm polyamide struts to offer low U-factors. The system can be field glazed, or pre-glazed to expedite on site installation.

For best thermal performance, the TT501 achieves U-factors as low as 0.30 (COG = 0.24) without using triple glazing.

Where high thermal performance is required, the TT501 can reduce glass cost and assure that it meets all code requirements throughout North America.


  • Thermal struts to enhance thermal performance
  • U-factor as low as 0.30 (COG = 0.24)
  • Meets all Climate Zone requirements
  • CRF (frame): 71
  • Features 30 mm polyamide strips
  • Slim 2-1/4" sightline and 5" depth
  • Dual finish option
  • Pre-glazed or field-glazed
  • Screw spline assembly with optional slab edge covers
  • Water Performance: 12 PSF per ASTM E 331
  • Structural Performance: 5' x 10' x 40 PSF per ASTM E 330
  • NFRC rated and CMAST listed
tt501 system

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