Energy efficient glazing keeps your home warmer and quieter as well as reducing your energy bills, whether with double or triple-glazing, secondary glazing, or just heavier curtains.
How does it work?
Double-glazed windows have two sheets of glass with a gap in between, usually about 16mm, to create an insulating barrier that keeps heat in. This is sometimes filled with gas. Triple-glazed windows have three sheets of glass, but aren’t always better than double-glazed windows. To choose the most energy-efficient window look for the BFRC rating.
Energy-efficient windows come in a range of frame materials and styles. Performance criteria vary according to the following:
- How well they stop heat from passing through the window.
- How much sunlight travels through the glass.
- How little air can leak in or out around the window.
Credit to: Energy Saving Trust