How To Get A Cool Roof

All of these types of residential roofing products are now available with ir reflective color pigments which act to reduce the temperature of roofs and reflect heat away from the home.
How to get a cool roof. Get a little misty eyed. A cool roof is a roof that has been designed to reflect more sunlight and absorb less heat than a standard conventional roof. Roofing materials and their combined effects on temperature. Solar reflectance is represented as a number like 0 25.
Specialized roof coatings are available in a wide range of materials and can help a flat roof reflect up to 90 percent of solar heat. Trade out your old heat trap of a roof for a cool tile roof. If you want to convert an existing roof into a cool roof you have three basic options. There are two ways asphalt shingles can meet cool roof code requirements in california exceed a minimum solar reflectance.
This effectively regulates heat absorption and temperature keeping your building warm or cool depending on the season. 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. That means your roof can easily heat up to 150 f throughout the duration of a typical 90 f summer day. Retrofit the roof with specialized heat reflective material re cover the roof with a new waterproofing surface such as tile coating replace the roof with a cool one.
10 ways to cool your roof 1. If you get a chance to replace your ceiling then you should consider installing a layer of foam insulation under your roofing is ideal. Ballasted roofing systems are roofs in which a membrane is laid on the roof deck and held in place by the. Historically cool roofs have been either white.
Residential roofing options include asphalt shingles metal clay tiles and concrete tiles. Rooftop gardens shade the buildings below from direct sunlight and reduce both surface. The range of materials includes an elastomeric paint large polyvinyl chloride pvc sheets. Department of energy a conventional roof without inherent cooling properties can reach temperatures up to 50 f hotter than the actual temperature outside.
Back into the atmosphere solar reflectance. This is ability of the shingle to reflect the sun s energy from its surface back into the atmosphere. The cool roof rating council was created in 1998 to develop accurate and credible methods for evaluating and labeling the solar reflectance and thermal emittance radiative properties of roofing products and to disseminate the information to all interested parties. Learn more below about these cool roofs and how to make your flat roof reflect heat more efficiently.
According to the u s.