How Much Does Roof Insulation Save

How much energy you will save depends on several factors such as your home s climate and environment how well insulated your current roof is the type of roof you have and the efficiency of your heating and cooling system.

How much does roof insulation save. Reflective roofs can reduce the temperature on the surface of the roof by as much as 30 percent which means that less heat gets into your home source. Insulation savings calculator use this insulation savings calculator to measure the financial impact of increasing your insulation performance. The department of energy estimates that you can save up to 10 percent annually on your energy bill when you insulate your attic. So it becomes impossible to save 30 on your total energy bills with spray foam on the roof decking when only 15 of your heat gain is coming from the attic space.

The most energy efficient roofs also have high emittance which means they re efficient at releasing any solar heat they have absorbed. 1 cool your roof cool roofs are lighter in color than traditional black asphalt or dark wood shingles and save energy by reflecting light and heat away rather than absorbing them. This is known as the albedo effect and many studies have documented significant energy savings from simply lightening the color of a roof. In chicago the walls are the greatest source of heat loss and so wall insulation is the best upgrade you can choose for spray foam.

Deciding if spray foam is right for you. Methodology for estimated energy savings from cost effective air sealing and insulating. Enter your data into the fields where indicated. Epa estimates that homeowners can save an average of 15 on heating and cooling costs or an average of 11 on total energy costs by air sealing their homes and adding insulation in attics floors over crawl spaces and accessible basement rim joists.