A cool roof is one that has been designed to reflect more sunlight and absorb less heat than a standard roof. Cool roofs can be made of a highly reflective type of paint, a sheet covering, or highly reflective tiles or shingles. Nearly any type of building can benefit from a cool roof, but consider the climate and other factors before deciding to install one.
1- Try to minimize how much walking you do on your roof. Walking on a roof when the shingles are brittle (in cold weather) or soft (in hot weather) can damage the shingles. If you have to walk on the roof to take care of a problem, try to do it at the most mild time of day – in the morning in the summer and the afternoon in the winter.