But its potential value in ameliorating the most severe consequences of excess heat in cities could be life saving.
Painting roof white make the attic cooler.
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.
By reflecting more light and heat back to the atmosphere a white roof should act like.
How to cool your roof.
Reduced heat load equates to reduced energy required to cool or heat a building.
Having a silver roof shouldn t actually contribute to increased heat but a white roof will actually reflect the sun better and help the attic space be a little cooler.
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 conditions would of course be very different in california to those found in.
Lo mit attic heat barrier is a coating specially formulated to reduce summer radiant heat gain from the roof into the attic.
By decreasing the solar gain and heat retention of your home a white roof also increases its comfort and reduces the heat island effect to which your home s dark roof contributes.
The easiest route is to slap a cool roof coating onto an existing roof.
Lo mit is a silver colored non thickness dependent low emissivity radiant barrier paint interior radiation control coating system irccs which may be used in almost any application where infrared heat reflectivity.
That equates to a 16 7 reduction on the heat load being transferred from the the roof system into the attic.
Painting roofs white has been like changing lightbulbs one of the well cited easy ways out of climate change.