Question

explain how houses with thatched roof are cool in summers

Answer 1

Houses with thatched roofs keep cool in summer, as compared to houses with concrete roofs. It is because thatched toof contains a large amount of trapped air which is bad conductor of heat. Hence heat from outside does not flow in thatched roof house. Thus they remain cool in summer

Answer 2

It cool because when the heat rays come the thached roof and go back