How Much Money Will A Cool Roof Save
How energy efficient roofing helps beat the heat save money.
How much money will a cool roof save. The tables below show the expected savings in electricity bills that a cool roof can provide for the 15 and 30 year time periods incorporating a 4 annual utility inflation rate. By amanda kimble evans february march 2010. Additional cool roof costs include specialized materials and labor. The basic idea behind cool roofs is simple and recognized for centuries by the ancient greeks and egyptians.
Estimates cooling and heating savings for flat roofs with non black surfaces. During the heat of summer a non reflective rooftop is one of the hottest places out there far hotter than the surrounding air. One way to estimate how much energy you would save by installing a cool roof is by using the cool roof calculator. Developed by the u s.
Even with good insulation that heat penetrates roofs and warms up attics and top floors forcing air. No matter where you live you can save energy and money by switching to a white or cool roof for about the same cost as a conventional roof. Department of energy s oak ridge national laboratory version 1 2 this version of the calculator is for small and medium sized facilities that purchase electricity without a demand charge based on peak monthly load. The council estimates that a cool roof can save a homeowner 7 to 15 in cooling costs.
Energy star recognizes cool roof products that reduce peak cooling demand by 10 to 15. According to the united states department of energy a cool roof has the potential to save a homeowner or business owner up to 15 on their air conditioning bills annually. The total amount of savings in the us has reached an annual 1 billion dollars in the public sector alone. Over its lifecycle a new white roof costs no more than a traditional roof.
There are a number of benefits that a cool roof can offer you. However over the life of the green roof it is estimated that it will save around 200 000 239 897 in 2016 dollars in energy costs. Homes in arizona have seen the cost to cool their homes drop by up to 350 a month and companies with commercial buildings stand to save even more regardless of location. To obtain the energy star label steep slope products must have an initial solar reflectance of at least 0 25.
June 27 2018 written by. That is because green roofs absorb much of the heat from the sun causing the rooftop to be about 80 degrees cooler than a traditional rooftop. Cool roofs can save money several ways including energy savings rebates and incentives hvac equipment downsizing and extended roof lifetime. If nothing else a white or cool roof will save you up to 20 percent on your air conditioning bill and it s hard to argue with that.