4000 Series Double Hung
Technical Details
- 1Vinyl frames and sashes will never chip, peel, crack or warp, Made tough and solid with virgin vinyl (PVC) resin, their color is formulated throughout so the beautiful luster lasts.
- 2Multi-chambered sash & mainframe create insulating air spaces for thermal efficiency.
- 3Insulated glass unit with optimal air space improves year-round performance.
- 4PPG Interlock™ Warm Edge Spacer System maximizes performance and Longevity.
- 5Interlock at sash meeting rails Add to your sense of security, comfort and well-being.
- 6Protective bulb seal helps to prevent air infiltration at the meeting rail.
- 7Drop-in glazing for extra protection from the elements.
- 8Fully extruded lift rails provide strength and stability for easy operation.
- 9Sloped sill forces water to drain to the exterior of the window.
- 10Hidden Screen track for clean lines and added beauty.
- 11Protective bulb seal at the sill provides extra protection from the elements-sealing tightly against dust, dirt and air infiltration.
Plus these additional features:-
- Fusion-welded frames and sashes add strength and rigidity.
- Dual ventilator locks provide a safe, secure way to keep windows open for proper ventilation.
- Full balance covers help protect against air infiltration while adding a finished look to the window frame.
- Constant force balance system eliminates sash cords, weights and pulleys. you'll benefit from smooth, comfortable fingertip operation.
- Tilt-in top and bottom sashes make cleaning safe and easy from inside the home.
- Double barrier-fin weather stripping at sash sides help keep out dirt and noise, and protect against air infiltration.
- Beveled exterior profile gives windows a clean, elegant look.
