How Cool Roofing Works

Whereas darker traditional roofing materials absorb sunlight the reflective surfaces of a cool roof reflect it away.

How cool roofing works.

Thermal emittance ability to cool down by emitting heat that is absorbed. It is an eco friendly paint which upon application to cementaceous asbestos or ms roofing increases the emissivity of that surface which results in reflection of heat energy. Today there are many options for roofing underlayment materials rubberized asphalt to organic fiberglass to synthetic. Cool roofs achieve this by reflecting some of the infrared ir light from the sun.

On the other hand cool roofs stay cooler in the sun and transmit less heat into the building. It begins with the rafters and continues on in layers of protection that prevent water and the wind from damaging your home. Cool roof shingles and tiles. While the term cool roof is sometimes used to describe any roofing surface that is cooler than a standard rooftop green certification programs such as leed energy star the u s.

The heavy mass of cool roof shingles and tiles can also provide some degree of thermal protection by absorbing and blocking heat during the day and releasing heat throughout the night. On top of the rafters your roof has plywood followed by sheathing a material that s designed to protect your home from moisture. Cool roof shingles tiles and slate may be coated with special granules to give them better solar reflectance. A cool roof is one that has been designed to reflect more sunlight and absorb less heat than a standard roof.

Cool roofs are designed to lower the temperature of your home in summer months making you more comfortable and potentially reducing your energy bill. Cool roofs can be made of a highly reflective type of paint a sheet covering or highly reflective tiles or shingles. Cool paint is made of highly reflective type of paint by emissivity aqueous coating based on acrylic resins. A cool roof is a roofing system that delivers higher solar reflectance the ability to reflect the visible infrared and ultraviolet wavelengths of the sun reducing heat transfer to the building and higher thermal emittance the ability to radiate absorbed or non reflected solar energy than standard designed roofing products.

Reflective metal roofing may also cool high slope roofs. The right underlayment for your roof will keep moisture cold weather and stifling summer air out giving your roof a longer life. Nearly any type of building can benefit from a cool roof but consider the climate and other factors before deciding to install one. This results in lower absorption of solar heat and a cooler roof.

How your roof works your roof is not just made up of a few shingles. Green building council and the department of energy building technology program base their respective cool roof credentials on a roofing material s ability to reflect the sun solar reflectance and release absorbed heat emissivity.