Painting Roof White Make The Attic Cooler

That equates to a 16 7 reduction on the heat load being transferred from the the roof system into the attic.

Painting roof white make the attic cooler.

By reflecting more light and heat back to the atmosphere a white roof should act like. Lo mit attic heat barrier is a coating specially formulated to reduce summer radiant heat gain from the roof into the attic. It found that a clean white roof that reflects 80 of sunlight will stay about 31c cooler on a summer afternoon. Oleson found that even if every city building roof and stretch of urban pavement in the world were painted white it would only delay global warming by 11 years.

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. Painting roofs white has been like changing lightbulbs one of the well cited easy ways out of climate change. The easiest route is to slap a cool roof coating onto an existing roof. 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.

The urban heat island can be a killer. 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. The conditions would of course be very different in california to those found in. 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.

How to cool your roof.