- Double-pane insulated glass
- Heat-resistant (Low-E) glass coating
- Airtight frames
- ENERGY STAR® rating
Two of the more energy efficient frame materials are vinyl and fiberglass.
- They both reduce heat transfer and contribute to insulation value.
- Both can be constructed with chambers within the frame to increase strength and insulation, while reducing sound and noise levels.
Dual Pane Glass Windows:
- Dual-pane designs use an air or gas-filled space between two panes of glass-superior insulation to single pane windows.
- Special low emissivity (called “Low-E’) coating on the glass blocks out infrared light, to keep heat inside in the San Diego area winter, and outside in the warm Southern California summers.
- Low E coated windows filter the UV (ultraviolet) light (UV) to help protect interior furnishings from fading.
- A spacer –designed and spaced the correct distance between the dual glass panes-provides optimal airflow between each window pane.
- Too much or too little airflow can affect the overall efficiency of window glass insulation.
- The window spacer affects expansion and contraction-reducing dreaded window condensation.