Rhino Energy Solutions, LLC.was created to help home owners save hundreds of dollars per year with the latest in energy saving products. Our best selling product is known as radiant barrier by Heat Bloc-75. It is a spray on coating that is applied to the under side of the roof from inside the attic. The process takes about 3 hours and will lower the temperature in your attic up to 50 degrees. A cooler attic means that you�re A/C will not have to work as hard to keep your home cool.