DuraGard XT

Window Platform

DuraGard XT Series Windows

The DuraGard XT Series was designed to meet tough energy standards. Built using AAMA certified lineals, these windows are made to withstand the harsh winds of winter and the extreme temperatures of summer, keeping your home comfortable and energy efficient throughout the year.

Product line includes: Double Hung two- and three-lite Horizontal Slider, Picture Window, Hopper and Tilt-n-Slide.


  • Welded frame and sash enhances structural integrity and increases weatherability.
  • Available in new construction and replacement configurations.
  • For ease of new construction installation, it comes with a pre-punched nailing fin.
  • Subtle accessory grooves come standard so you can securely accommodate trim and other attachments.
  • Accepts up to 1″ insulated glass.
  • The sash is SDL (Simulated Divided Lite) bar compatible.
  • Impact tested to Zone 3.
  • Dual Weatherstripping at stiles and interlock provides extra protection against air-infiltration and enhances the energy efficiency.
  • Structural mull system available.
  • Double wall lift handle for durability.
  • A beveled exterior offers a pleasant, aesthetic design.
  • 3-1/4″ frame depth.
  • Utilizes Chelsea’s C Core composite reinforcement.
  • Meets AAMA Grade 35 structural test standards with upgrades available to meet light commercial Grade 50.


  • Test Standard – AAMA/WDMA/CSA 101/I.S.2/A440-08, NAFS
  • Tested to class LC-PG30 (44″ x 75″) H


  • The DuraGard XT performs to a U-Factor result with a range from 0.20 to 0.47
  • The DuraGard XT performs to a SHG result with a range from 0.19 to 0.59