Peace of mind is forged into every
8000 Signature Series Window.

1. Vinyl frames and sashes will never chip, peel, crack or warp. Made tough and solid with “Criterion” virgin vinyl (PVC) resin, "European water-cooled" extrusion process for shaping strength, plus through and through color compounding so the beautiful luster lasts.

2. A network of strategic insulating air chambers helps to reduce conduction and cut high energy bills.

3. Triple-paned insulated glass unit with optimal 1" air space improves year-round performance.

4. New foam-filled “Trinity Windjammer Interlock System” at sash meeting rails creates a super-tight seal against air and moisture infiltration.

5. PPG Intercept™ Warm Edge Spacer System maximizes window performance and longevity.

6. Heavy-duty fiberglass reinforcement for added strength and energy efficiency at the meeting rail.

7. Exclusive double lift rails provide strength and stability for easy operation.

8. Drop-in glazing adds extra protection from the elements.

9. Patent pending low-profile “True-Slope” pinch-welded sill offers maximum water drainage to the exterior, while enhancing protection from air infiltration.

10. Hidden screen track for clean lines and added beauty.

11. QUAD-4 weatherstripping at header adds even more protection from the elements.