How Cool Roofs Work

Cool roofs are designed to lower the temperature of your home in summer months making you more comfortable and potentially reducing your energy bill.

How cool roofs work.

Get a little misty eyed. White or special cool color roofs absorb less sunlight stay cooler in the sun and transmit less heat into the building. Types of roofs and how they can be made cool low sloped roofs. This lowers urban air temperatures and mitigates the urban heat island effect.

Cool roofs are a type of roofing system designed with a high ability to reflect sunlight whether visible infrared or ultraviolet. Benefits of cool roofs. Low and steep. Cool roofs reflect more sunlight and absorb less heat than traditional roofs.

Historically cool roofs have been either white or some other lighter shade color. Single ply membranes are pre fabricated sheets rolled onto the roof and attached with mechanical. 10 ways to cool your roof 1. A cool roof prevents heat absorption by reflecting the sun s heat and then emitting its radiation back into the atmosphere.

On the other hand cool roofs stay cooler in the sun and transmit less heat into the building. Shingle roofs consist of overlapping panels made from a variety of materials such as fiberglass. Ballasted roofing systems are roofs in which a membrane is laid on the roof deck and held in place by the. It also slows the formation of ground level ozone and smog.

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. These roofs can be made using highly reflective paints or highly reflective tiles or shingles or with sheet coverings. These two properties help roofs absorb less heat and stay up to 50 degrees to 60 degrees cooler than conventional rooftops during the peak of summer. Cool roofs reduce the thermal radiation of heat into the atmosphere convection of heat into outside air and the conduction of heat into the building.

Traditional dark colored roofing materials strongly absorb heat from sunlight making them warm in the sun and heating the building. By doing this cool roofs allow for a more comfortable and controlled indoor environment. Rooftop gardens shade the buildings below from direct sunlight and reduce both surface. This high reflectivity reduces heat transfer and helps cool your building.