Top 1 in Top 10 ways to reduce heat for homes in summer.
The curtains are shielded, preventing light from shining directly into the room, preventing the phenomenon of thermal retention in the room. According to a scientific study, 30% of unwanted heat comes from the window. Therefore, the simplest measure is to always pull curtains. The color of the curtain is also important, choosing light-colored curtains to avoid heat absorption.
With this simple measure you will not need to overuse the air conditioner but also help the room temperature is always low. Take note especially for the glass windows and West and South directions.