Cool Roof Tiles:
A cool roof tiles is designed in such a way that it reflects more sunlight and absorbs less heat than a standard roof tile. Nearly any type of building can benefit from a cool roof tile. Just as wearing light-colored clothing can help keep you cool on a sunny day, cool roofs material is designed to reflect more sunlight and absorb less heat than a standard roof.
Insulla Cool roofs reflect and emit the suns heat instead of absorbing it. By reflecting the heat of the sun instead of absorbing it, they keep buildings cooler and reduce the amount of energy needed to cool them, in turn reducing the use of air conditioners and electricity consumption.
This is measured by two properties, solar reflectance and thermal emittance. Both properties are measured from 0 to 1; the higher the value, the cooler the roof. Standard or dark roofs can reach temperatures up to 150°F or more in the summer sun. Insulla cool roof tile under the same conditions could stay 50°F cooler and save energy and money by using less air conditioning. Cool roof tiles helps in reducing bills by decreasing air conditioning needs, decreases roof temperature which in turn may extend roof service life.
A white roof tile offers a number of advantages; Roofs are the elements of buildings most exposed to high levels of ultra-violet light and solar radiation. Most color pigments tend to mellow to varying degrees when subject to this exposure. Added to this, the roof naturally catches the majority of fall-out pollutants and dust from the atmosphere. Because the heat is reflected, attic rooms and other spaces directly beneath the roof remain cooler, so in many cases air conditioning is no longer required. For larger buildings this also means that lower capacity cooling systems can be specified, resulting in a smaller price tag. Savings are also realized on the energy costs. The white roof tiles in combination with a solar array even boost the energy yield of the panels.