Q. How Much Will I Save? What is the Payback Period?
A. Past case studies and experience shows that a properly insulated home with spray foam will reduce heating/cooling consumption by around 50% or more depending on several factors. Window fenestration, orientation, and HVAC sizing are just a few of the variables that will determine whole house performance. Through the use of energy modeling software, such as REM/Rate, you can closely predict the energy usage of a home with either spray foam or fiberglass. These programs can be used to estimate the return-on-investment or payback period by upgrading to spray foam insulation.
Approved by the U.S. Dept of Energy, the REM/Rate software is a highly-sophisticated program that takes into consideration a whole host of variables to provide a comprehensive analysis of the subject home’s energy consumption. Further, the program provides detailed information about energy costs, air-leakage, adequate HVAC sizing, Energy Star certification, environmental impact, and more.
Our experience and research shows that the payback period from the cost to upgrade to spray foam ranges between 2-5 years depending on fuel cost and whether rebates or tax incentives are available.
The annual energy savings can become quite significant as the cost for energy continues to rise each year. Below is the yearly energy savings from a sample 6,500sf home: