Question

How insulation is obtained from the heat of the sun in a house through its roof?

Answer 1

Hint:The insulation from the sun's heat in a house through its roofs can be obtained with various methods like we can use the materials over the house roof, which acts as a heat insulator. Many similar activities like this can be used for insulation. Our main motive is to cover the roof surface so that we can generate insulation from heat.

Complete step by step answer:
The sun produces a large amount of heat, which can heat the house rapidly. For the reduction in heating effect, insulation is important for the cooling of the house. The roof of the house without insulation can absorb 83 percent of the sun’s heat, but if we provide insulation over the house roof, it can reduce the absorption of heat up to a large amount.
The most effective process for the roof's insulation covers the roof by materials that can act as a heat insulator. The polyurethane paint can act as a heat insulator; it generates a thin shield over the roof surface and provides thermal insulation. Due to this, the roof's surface acts as an opaque surface for sunlight and does not allow the sunlight to pass through the roof. The sunlight gets reflected back into the atmosphere, and thus, the roof surface remains away from the heat.

Note:We can apply the polyurethane by spraying PUR foam; the polyurethane is used for the thermal insulation because it is durable and provides the joint less coating over the surface of the roof.