Pour-in-place Perma-Buk III Glider Window


Extra thick welded PVC frame and sash. Energy Efficient PVC keeps interior surfaces warmer and reduces interior condensation. Window is an integral part of the Buk frame (no further window installation is necessary.) Large exterior fins ensure the Perma-Buk will stay secure in the concrete. Sloped sill promotes water drainage. Glazed with 3/4" dual pane insulating glass. Units fully weather-stripped to protect against air and water infiltration. "Perma-Buk III" is fully braced and covered with protective film to prevent against frame distortion, damage, and post-construction clean-up


Glider is double-slider style featuring sash rollers for ease of operation and cam style sash lock for positive seal and security.  All units feature an aluminum-framed, fiberglass mesh full screen.


Welded corners provide a quality finish and eliminate leaking. "Perma-Buk III" is compatible with wood, aluminum or steel forms. Frame design provides an attractive finished opening eliminating the need for additional trim. Factory punched tie slots 36" on center for easier installation into aluminum and steel forms. Pre-mounted well bolts and mounting plates are available to simplify window well mounting. Accessory groove in frame allows use of various trim products. Optional Low-e glass for improved thermal performance.


All Northview products feature a Limited Lifetime Warranty on frame and parts. Ten year glass seal warranty. See actual warranty for further information.

Why It's Better

  • Extra Thick Welded PVC Frame
  • Fusion Welded Corners Prevents Leaking
  • Compatible with all Types of Forms
  • Window is an Integral Part of the Buk Frame
  • No Further Window Installation Required
  • Several Egress Sizes and Styles Available
  • Available in Multiple Wall Thicknesses
  • Factory Punched Tie Slots for Easy Installation
  • Pre-Mounted Well Bolts Available
  • Bracing Supplied - Ready for Installation
Model R.O. Frame Size
 NV3S3216W7  NA  36-13/16" x 20-1/16" x 7-7/8"
NV3S3220W7  NA 36-13/16" x 24-1/16" x 7-7/8"
NV3S3224W7  NA 36-13/16" x 28-1/16" x 7-7/8"
NV3S4848W7  NA 52-13/16" x 52-5/16" x 7-7/8"