Polyurethane Sandwich

ASTM C518 tested R-Value: 17.54*

  • Foamed-in-place CFC free polyurethane core permanently bonds the 20-gauge exterior and 27-gauge interior steel skins to form a rigid homogeneous section
  • 2” thick sections are thermally broken to eliminate convection
  • Tongue and groove meeting rails with joint gasketing provide superior joint strength and prevent air infiltration
  • Concealed hinge attachment plates run the full height of sections for superior strength
  • Rigid exterior end stiles are finish painted white
  • Glass is available in 7/16” insulated or 1/4” tempered glass
  • Glass is easily replaced or substituted by removing molded frames
  • Exhaust port is optional for bottom section
  • Track options include 2” or 3” bracket or clip angle mount and designed to accommodate virtually any headroom design requirements.
  • Heavy duty hardware may be specified with 11 or 14-gauge hinges and 10 ball rollers
  • Bottom U-shaped astragal is standard
  • Increased windload requirements may be specified
  • Available in finish coat color of white

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