Question

In places of hot climate it is advised that the outer cover of houses be painted white why?

Answer 1

In places of hot climate, it is advised that the outer walls of house be painted white because white colour does not absorb any heat radiation from the sun which keep inside cool even if there is hot climate outside the house.

Answer 2

in places of hot climate, it is advised that the outer walls of the house be painted white because white colour  does not absorb  any heat radiation from the sun which keep inside cool even if there is hot climate outside the house