How to keep a bungalow warm when it is too hot in summer?

In flat-roofed houses, roof water storage is used to achieve the effect of heat insulation. This is usually used by many families to bathe on the roof. This can be used for insulation. Water storage and thermal insulation roof has dual functions of thermal insulation, which can not only reduce the aging and cracking of waterproof layer, but also prolong its service life. Overhead ventilation insulation layer is set on the roof, and overhead ventilation insulation layer is set on the waterproof layer, so that air can circulate freely between overhead floors. The overhead ventilation layer is generally made of concrete insulation board, brick, tile and other materials, which will not be deformed and damaged due to rainy weather. The roof area of bungalow is very large, which can be used reasonably. Plant some plants on the roof, and the soil and roots of plants can also play a protective role. This can be said to be a dual function. It is economical to use that kind of prefabricated house insulation material. It can be laid upstairs, which is equivalent to thermal insulation, and it is also very convenient. The mobile home is made of steel and wood, which is suitable for all kinds of construction sites as offices and dormitories for migrant workers. It can also be used for flat roof and storey addition, various warehouses and so on.