Vinyl created like no other.
Pella uses high-grade vinyl that is fade-resistant and performance tested for excellent weathering, durability and color retention. And the following features help ensure Pella's vinyl products are easy to care for and stay looking great for years.
- Metal-reinforced, interlocking patio door panels add wind resistance to help improve energy efficiency and help eliminate "vinyl smile".
- Precision corner welding process helps ensure ThermaStar by Pella vinyl patio doors will resist warping or twisting over time.
- Multichambered frames and fully-welded sashes add strength and energy efficiency compared to ordinary vinyl.
- Triple-weatherstrip design to help eliminate air infiltration.