Cool roofs can reduce local air temperatures, which improves air quality and slows smog formation. They reduce heat trapped in the atmosphere by reflecting more sunlight back into space, which can slow climate change. They also reduce peak electric power demand, which reduce power plant emissions, including carbon dioxide, sulfur dioxide, nitrous oxides... Read More From the US Department Of Energy
Financial Benefits
Cool roofs provide tremendous reduction in cooling cost by reflecting 85-90% of solar heat and keeping your residence or place of work cooler in the summer. This directly reduces your electricity costs. This also puts less strain on your HVAC equipment, which leads to less maintenance, reduced repair costs, and longer life for the Air Conditioning units.
Cool protective coatings can be re-applied repeatedly every 10 to 15 years. Keeping your cool roof up to date can reduce, if not eliminate the need for expensive roof tear-offs. Combining these maintenance savings with an average of 20% savings on air conditioning, cool roofs are the most cost effective solution for the long term.
Temperature readings for cool roof verses standard roof materials.
Most of the roofs in the world are of dark color. In summer, the surface of a dark roof can increase in temperature as much as 65°C to 90˚ C. Higher roof temperatures cause deterioration of roofing materials, which leads to increased roof maintenance costs, and high levels of roofing waste directed to landfills. The best way to reduce this is with the help of radiant barriers. Light colored renewable acrylic surfaces have high solar reflectance and a high emittance, which redirect the radiation back to the environment.
