Question

how are buildings kept cool in summer and warm in winter?

Answer 1

Buildings are now being insulated the insulation is installed in roofs which keep the energy with in hence it makes the rooms of buildings warm in winter and cooler in summer. More over by leaving less empty sapces and windows also make the environment of the room cosy.

Answer 2

Explanation:

Insulation is a layer of material in your walls, ceiling, floor, and roof that moderates the temperature inside your home. It makes it easier to keep your house cool in summer and warm in winter. Most heat transfer happens through the roof and ceiling, so insulation is essential. ... Cuts your heating and cooling bill.