The Roof Savings Calculator (RSC) is a joint initiative of Oak Ridge National Laboratory, Lawrence Berkeley National Lab, and White Box Technologies that models the energy use impact of various residential and commercial roof structure choices via a simple online interface. Building owners, contractors, and manufacturers use the RSC to support roof decision-making, and as part of marketing materials. It is important, therefore, to understand the current state of the RSC.
GCCA recently drafted an update on the process to redevelop, fix bugs, and validate the RSC. We ultimately recommended that, although the RSC is live, it is better to hold off on using the RSC until the full validation process is complete. You can get the whole picture on the Knowledge Base.