Rough Opening Window Install

Windura / Windows / Rough Opening Window Install

Rough-Opening Window Installation Procedures

The following procedures are included with a Windura “Rough-Opening” window installation. This is an optional method of installation.


  • Maximum insulation ability around the new window frames
  • The ability to build the new windows as large as possible for maximum glass space
  • Restoring the window design to match the original (The alternative “Pocket” installation of replacement windows can result in reduced glass-space and a modified look)


  • Removal of all existing exterior wood trim
  • Removal of existing window frame and sashes
  • Interior trim (casing) is retained and will be reused (unless damaged, or new trim is desired)
  • Stud, or “Rough”-opening is inspected for water damage and other problems
  • New window installed, squared-up, shimmed, and fastened to rough-opening. In most cases, the windows will come with an applied nail-fin accessory for a positive water-shield around the opening
  • Matching interior jamb-extensions installed
  • Insulation fully packed into the cavity between the window frame and studs
  • Full vinyl exterior trim installed and sealed to the window frame and the siding
  • Finish caulking is performed to the interior and exterior window and trim edges

Why this is important …

Many replacement window companies perform the easier “pocket” installations, in which the existing frame is left in place. This results in the following potential problems:

  • Aesthetic issue—reduced/narrower glass-space
  • Aesthetic issue—new interior trim stops installed around the perimeter—will change the appearance vs. original, and/or other windows not replaced
  • Inability to add insulation around the outside of the window frame—(the cavity is not revealed if the outside trim is not removed)
  • Inability to inspect or repair the condition of the “rough opening”—if rot, mold, or damp insulation exists—will not be revealed and corrected