How To Make Energy Saving Thermal Curtains
In most homes, windows are the single largest avenues of heat loss. Glass is a very poor insulator, having an R-value of 1 (for single panes). Older windows can lose heat where the seal is degraded around the frame.
Typical curtains alone provide little insulation from the cold outside, but using thermal curtains can increase the insulative value of your windows by up to 7 times (R-value of 7), keeping more heat in your home. Compared to other heat saving features, thermal curtains are simultaneously the most economic and efficient.
Not only are they helpful for your wallet and your carbon footprint, but typical thermal curtain design is fairly simple, the materials involved are affordable, and you will also save resources used in heating your home.