Calculations above were made using Department of Energy’s Steep Slope Calculator produced by Oak Ridge National Laboratory. (1) Household savings calculations made assuming a 2400 sq. ft. roofing area, insulation R-value of 10.00, and state energy price from July 2014 (2). Savings estimates based on comparison to home with black asphalt roof. Cumulative savings projections made using estimated price of electricity from the Energy Information Administration’s 2015 Annual Energy Outlook (3). These savings estimations may or may not reflect actual savings experienced by homeowners due to numerous savings variables related to home specifications and location.
1. Oak Ridge National Laboratory, . DOE Steep Slope Calculator. Department of Energy, June 2005. Web. 6 Aug. 2015. .
2. “Electric Power Monthly.” US Energy Information Administration. N.p., Sept. 2014. Web. 6 Aug. 2015. .
3. “Annual Energy Outlook 2015 With Projections to 2040.” US Energy Information Administration. N.p., Apr. 2015. Web. 6 Aug. 2015.
There are many variables that will affect the energy savings of your Matterhorn roof including but not limited to: location, previous attic insulation, attic ventilation, the existence of soffit and/or ridge vents, climate, roof pitch, roof area, weather conditions and selected Matterhorn product/color.