Question

Radiant cooling to clear night skies is also effective but difficult to achieve. Clear night skies provide a limitless source of radiant cooling for areas and surfaces that can be exposed to it.

(a) True

(b) False

I had been asked this question by my college professor while I was bunking the class.

This intriguing question comes from Arrangements of Rooms, Position and Purposes in chapter Planning of Building and Colony of Civil Engineering Drawing

Answer 1

Correct option is (a) True

Easiest explanation: Outdoor living areas and sleep-outs are the most effective but large openings with exposure to night skies are also able to shed heat. Design and orientation of glazing for passive solar heating require unobstructed sky exposure and this can be very useful for radiant summer cooling.