While it may be the most energy-efficient improvement you can make to your home, replacing old windows with triple-pane ones can be very expensive. If you’re not ready to make that investment, visit your local home improvement store, where you can buy window insulation film to cover drafty windows. The film blocks out cold air, and it’s transparent, too. Since the film can be a little unsightly, opt for windows in less-frequented areas. Just adding this film can improve a window’s efficiency by as much as 70%, which makes it totally worth the investment.
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