cool roofs

cool roofs help many building owners save alot of money while protecting the environment. Traditional dark roofs can reach up to 150 degrees fahrenheits in a hot summer day, but with the cool roof in the same condition, it corld stay at 50 degrees fahrenheits. cool roof can help lower energy bills by decreasing air conditioning needs. cool roof block sun's radiation when sunlight hits the roof, some heat is abosored by the roof and transferred to the building below and the heat is released at the other end of the house. cool roof cost differently when it deals with low-slope roof and steep-slope roof. low-slope roof cost about $0.75-$1.50 per square foot, and the steep slope cost about $1.50-$3.00 per square foot. "a california study found that cool roofs provide an average yearly net savings of almost 50 cents per square foot.

by junjie kuang