Frame Structure
Efficient Frame Structure
A high-performing window depends on more than just the glass. Our frame and sash construction are designed to improve both thermal performance and overall durability.
Fiberglass-Reinforced Sashes
Our windows feature rigid thermal reinforcements, which are ultra-strong fiberglass-reinforced inserts built into the sashes for greater strength and thermal insulation.
These reinforcements help the sash maintain structural integrity while also reducing heat transfer, making the overall window system stronger and more energy efficient.
Foam-Filled Frame Chambers
The vinyl frame includes low-conductance green foam inserted into specific dead air chambers within the frame.
This added insulation helps improve thermal performance by reducing conductive heat transfer and increasing the overall energy efficiency of the window frame.
Additional Efficiency Features
- 3/16 glass
- High-quality weather stripping
- Reinforced sash construction
- Insulated frame chambers
- Energy-efficient glass and argon gas options


