The residents were also against painting roofs white because roofs are also used for other purposes says renu khosla from the delhi based centre for urban and regional excellence.
Painting your roof white.
This is particularly true for any home with a flat roof which will receive 100 percent sun exposure throughout the entire duration of the day neal explains.
The easiest way to reflect the sun s rays is to paint a roof white something the greeks have been doing for centuries.
Painting your roof white works but painting your asphalt shingle roof white can indeed make your roof surface 45 80 f cooler under the hot texas sun and this should easily cut your cooling bills by 10 15.
But there are problems with this approach mainly finding a paint that will adhere to the asphalt shingles and last for more than a few years.
Specifically neal says painting your roof white could save you a huge amount of money and keep your space more comfortable over the years as well.
A white roof reflects around 85 of the sunlight that hits it at least.
By reflecting more light and heat back to the atmosphere a white roof should act like.
Painting a roof with reflective or white paint is a popular green movement which can potentially lower a home s energy expenses.
The thing that no one discusses is how to paint your roof.
Secretary of energy and a nobel prize winning scientist has said that painting roofs white or another light color would help to reduce global warming by reflecting sunlight back into space it would be like removing every vehicle from the planet for 11 years.
A 2018 article published by yale s school of forestry and environmental studies shared that fresh asphalt only reflects only 4 percent of sunlight compared to 90 percent for a white surface such as snow.