Top 9 in Top 10 ways to reduce heat for homes in summer.
The roof is the highest heat absorbing place, so it is necessary to take appropriate insulation measures.
This should be noted as soon as you conduct the design and construction of the house, especially for Western homes that frequently suffer from hot sun. This can be done by close the extra ceiling with specialized materials against gypsum, slightly insulated foam bags.
However, if the original Liao still cannot be thoroughly insulated, then you can try by spraying water onto the roof at the sunny hours to cool the roof.