To keep heat out of windows, apply reflective window film to block sunlight and reduce heat gain. Use thermal curtains or shades to insulate the windows and prevent warm air from entering. Sealing gaps with weather stripping also helps improve energy efficiency and keeps your home cool during the summer months.

Heat can be blocked from entering through windows by using reflective window film, thermal curtains, and weather stripping. These methods help reduce cooling costs and improve energy efficiency, making your home more comfortable during the summer.