The elongation properties of a high quality coating should be in the range of 375 400.
Paint roof white 2017.
Wed 12 apr 2017 23 35 edt.
The same principal can work for your roof.
If not use a darker gray or add a bit of color with rose or burgundy around the windows doors and roof.
The thing that no one discusses is how to paint your roof.
Steven chu the u s.
White roof coating should have a very thick consistency.
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.
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.
The effects are greatest in single story buildings.
A white roof reflects around 85 of.
Find a medium gray that is dark enough to stand out from your white roof but not overbearing.
That in turn keeps your whole house cooler.
For trim choose a white that matches your roof if possible.
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 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.