Cool roofs can save money several ways including energy savings rebates and incentives hvac equipment downsizing and extended roof lifetime.
How much money will a cool roof save.
The council estimates that a cool roof can save a homeowner 7 to 15 in cooling costs.
Over 15 years the cool roof can save almost 12 000 in utility bills and in 30 years the savings can exceed 33 000.
Estimates cooling and heating savings for flat roofs with non black surfaces.
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.
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.
During the heat of summer a non reflective rooftop is one of the hottest places out there far hotter than the surrounding air.
The total amount of savings in the us has reached an annual 1 billion dollars in the public sector alone.
How energy efficient roofing helps beat the heat save money.
The basic idea behind cool roofs is simple and recognized for centuries by the ancient greeks and egyptians.
June 27 2018 written by.
Developed by the u s.
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.
By amanda kimble evans february march 2010.
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.
Even with good insulation that heat penetrates roofs and warms up attics and top floors forcing air.
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.
Why you should have a cool roof.
There are a number of benefits that a cool roof can offer you.
Energy star recognizes cool roof products that reduce peak cooling demand by 10 to 15.
First and foremost a cool roof will save you money.
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.
To obtain the energy star label steep slope products must have an initial solar reflectance of at least 0 25.
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.
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.