Western Sydney residents are being warned away from dark-coloured roofs ahead of summer.

Light-coloured roofs reduce the internal temperature in a home by up to four degrees.

Western Sydney University professor Dr Sebastian Pfautsch told Ben Fordham about 90 per cent of people have dark-coloured roofs in the western suburbs which attract heat.

“You will need 50 per cent higher energy costs to actually cool your home down to about 26 degrees.”

Press PLAY below to hear what you can do about your dark roof

Image: Getty