Written by GAF on
Cool roofs can help save you money on energy bills* in the North as well as the South. Here are some cool truths to ponder when planning a new roof.
Truth 1: It's all about reflectivity.
A cool roof reflects the sun's energy, reducing rooftop temperatures. While a sunlight-absorbing black roof can reach up to 190°F in the summer, a reflective roof's temperature can be as much as 60°F lower. Dark surfaces also contribute to the urban heat island effect.
A cool roof reflects away the sun's solar energy, unlike a dark roof which absorbs it and transfers heat to the building below.
*Energy cost savings are not guaranteed and the amount of savings may vary based on climate zone, utility rates, radiative properties of roofing products, insulation levels, HVAC equipment efficiency, and other factors.