How To Make Roof Absurb Less Heat

By the time the interior heats up the outside air should be cooler and can be allowed indoors.

How to make roof absurb less heat.

Use light color metal roof with overhangs to shade the walls on the south and west sides. Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles. One is to replace the surface layer with white gravel or reflective marble chips to increase its solar reflectance. White is the most reflective color and white metal roofing can actually lower the ambient temperature in the home by reflecting more of the sun s rays into the environment.

I can tell you that my experience is that any metal roof is cooler than asphalt shingles. Some roofing materials come in cool roof options and others can be altered with a highly reflective type of paint or coating to absorb less heat. Awell insulated house will gain only 1 f 0 6 c per hour if the outside temperature is 85 to 90 f 29 to 32 c. Traditionally the asphalt and surface gravel in a built up roof have been black or dark gray trapping much more light and heat than they release but there are several ways to make a built up roof cool.

Still the shine of bright white on a roof is imposing and can take away from the overall aesthetic of the house. In areas with cool nights and very hot days let the night air in to cool your house. Even the dark metal colors retain less heat than the relatively light shingles. Just as wearing light colored clothing can help keep you cool on a sunny day cool roofs material that is designed to reflect more sunlight and absorb less heat than a standard roof.

As a result your air conditioner operates more efficiently uses less energy and leads to lower utility bills. In most cases a cool roof will stay at least 50 f cooler than a non cool roof of the same color and construction.