Los Angeles CIty Council mandate "cool roofs" into local building code
In December 2013, the Los Angeles city council unanimously voted to mandate the addition of cool roofs or white roofs into its local building code for all new residential construction. This move also extends to properties being renovated. According to publication, The Atlantic Cities, it is believed that Los Angeles is the first major US city to implement such a mandate paving the way for other major cities across North American to take active steps to a greener future for all.
White roofs are known to help reflect sunlight rather than absorb it to help minimize energy consumption, greenhouse gas emissions as well as help to improve indoor air quality. Darker roofs tend to absorb more heat and sunlight than white roofs do (Think about how a darker car is far hotter in summer) which creates a warmer environment inside causing air conditioning equipment to work overtime to compensate.
When combined with other energy saving technologies such as spray foam insulation, homeowners can reduce their energy consumption as well as make a contribution to a greener environment.