It's hot, how to cool down and what to do.

1, reasonably open and close doors and windows. Many people think it's cool to open doors and windows in summer, but it's not. During the day, the outdoor temperature is high, the doors and windows are wide open, and the sunshine and thermal radiation are accompanied by bursts of hot air, which will make the indoor and outdoor generally hot. If you open the doors and windows for ventilation in the morning and evening when the weather is cool, close the doors and windows during the day, especially at noon, isolate the invasion of outdoor hot air, and draw a light curtain to block the sun and reflect the thermal radiation, you can make the room cooler. According to the actual observation, although the outdoor temperature in Chengdu reaches more than 30 degrees after noon, the indoor temperature can still be kept at about 28 degrees by the above methods.

2, balcony greening, courtyard greening. Planting flowers and trees on the balcony of courtyard greening not only has high ornamental value, but also has the function of regulating microclimate, which will make the air fresh, cool and pleasant. Because green plants can not only shade the sun, but also reduce the temperature by evaporating the water on the leaves. Some data show that planting grapes, morning glory, Parthenocissus tricuspidata and some flowers and plants on the courtyard balcony can reduce the temperature of the attached wall by 5℃ ~ 14℃ and the indoor temperature by 2℃ ~ 4℃.