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PW256 copy


System Description

Series PW256 is a 2-1/2” x 6-9/16” impact-resistant screw-spline assembled curtain wall system can accommodate 9/16” laminated glass designed for wind-borne debris applications. PW256 impact-resistant curtain wall is fully tested in accordance with ASTM and Florida Building Code standards for large missile impact and is approved for use in south Florida’s High Velocity Hurricane Zone and coastal areas considered wind-borne debris regions. PW256 options include fully captured and two-sided silicone structural glazed applications.



Glazing options:

  • Wet glazed with EPDM gasket on exterior
  • Dry glazed with EPDM gaskets interior and exterior utilizing Sentry Glass Plus laminates

Screw spline joinery allows:

  • Coral Punch Die shop fabrication
  • Die set punches spline and pressure bar weep holes
  • Panelized frame assembly for easy transporting and installation

Pressure Bars:

  • Preloaded with a dense EPDM thermal isolator at factory with attachment holes pre-punched 9″ O.C.
  • Attached to back members with #12-14 x 1 ¼” HWH #3 self-drilling screws

Removable snap-on interior trim covers at all horizontals allows:

  • Anchor inspection to substrate after glazing
  • Inspection and/or repair of critical joint seal areas after glazing

Injection molded plastic end dams and bridges at horizontals provides:

  • Accurate and tight seals at intersection of vertical/horizontal joints
  • Zone glazed system with weep holes for water control
  • Weep holes

Injection molded plastic top and bottom vertical mullion caps:

  • Accurate compression fit
  • Provides continuous perimeter seal

Injection molded plastic temporary glazing retainer:

  • Reduces labor
  • Distributes uniform pressure on glass reducing risk of breaking glass
  • Reusable for next project

Performance Test Standards

  • ASTM E 283 – Air Infiltration Test
  • ASTM E 331 – Water Infiltration Test
  • ASTM E 330 – Uniform Load Deflection and Structural Test
  • ASTM E 1886-1996 – Missile Impact and Cycling Test
  • Florida Product Approval Number – FL12880 (impact-resistant for use with HVHZ)

*Indicates test standards in compliance with the 2010 Florida Building Code for applications outside HVHZ.