How To Cool Roof

By lowering energy use cool roofs decrease the production of associated air pollution and greenhouse gas emissions.

How to cool roof.

Cool roofs like a white t shirt keep the internal temperature of the building lower. Ballasted roofing systems are roofs in which a membrane is laid on the roof deck and held in place by the. 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. Improved human health and comfort.

Apply two coats of bright white elastomeric paint to your flat roof to increase its solar reflectivity. Pvc sheathing is great for structurally sound buildings. 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. Cool roofs can reduce air temperatures inside.

Get a little misty eyed. Rooftop gardens shade the buildings below from direct sunlight and reduce both surface. Painting white roofs vs. Tests of heat reduction with elastomeric paint show a 60 to 75 percent improvement in how much it reflects sunlight and heat which translates to dramatic cost savings on energy used to cool your home.

10 ways to cool your roof 1. In california where many low rise residential homes are subject to the requirements of title 24 cool roof shingles have become a major trend in residential roofing. Reduced air pollution and greenhouse gas emissions. Roof coating specialized roof coatings have been developed that will reduce heat absorption.

However a cool roof need not be white. Any of the materials below will help reflect up to 90 percent of the sun s heat and light away so you can save on energy. Historically cool roofs have been either white. Many homeowners find that the best solution for their roof is to install asphalt shingles designed to meet cool roof requirements.

Traditional roofing is typically dark colored or black colors that absorb heat faster than brighter colors. By wearing the white t shirt you will remain cooler than if you wore a black t shirt because it reflects more sunlight and absorbs less heat.