PG 123™ Framing

  • 2-1/4" (57.2mm) sightline
  • 6" (152.4mm) depth
  • Thermal performance
  • Pre-glazed ribbon window wall application
  • Structural silicone glazed (SSG)
Responding to the need for quality control, simplified fabrication and faster installation, Kawneer has designed PG 123™, a ribbon window and multilite punched opening system with pre-glaze capability, labor-savings and unit construction.
The system is structural silicone glazed with captured head and sill cans, and intermediate horizontals.

Key Features Include:
  • PG 123™ Framing may be supplied in stock lengths or factory fabricated
  • In addition, the system can be pre-assembled and pre-glazed under controlled shop conditions that save time compared to field construction
  • Screw spline joinery, with square cuts and no miters or notching, reduce fabrication time
  • Pre-glaze units are installed from the interior of the building to minimize weather delays and reduce the need for scaffolds and lift equipment


  • Incorporates the IsoWeb™ glass reinforced nylon thermal break that provides improved condensation resistance and reduces thermal transmittance
  • Fully pressure equalized with a rain screen gasket to eliminate the exterior seal between glazed units
  • PG 123™ Framingis fully tested to appropriate AAMA, ASTM & CAN/CSA A-440 standards for air, water and structural performance 

  • The ribbon window system is structural silicone glazed vertically with optional applied covers to give a four-sided captured appearance
  • Optional vertical covers provide a clean, monumental appearance without sight line build up for building owners who prefer more traditional aesthetics
  • The IsoWeb™ Thermal Break offers dual finish options, allowing different interior and exterior color finishes
  • Accommodates a one-inch infill with ¼ inch adaptors for spandrel applications

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