A roof structure is made stronger by the system elements working together—much stronger than its main load-bearing element, the rafter, is alone. Current engineering analysis methods do not take this composite action into account when evaluating rooftop strength. Results from the Sandia research reports, “Structural Code Considerations of Solar Rooftop Installations” and “Empirically [...]
A roof structure is made stronger by the system elements working together—much stronger than its main load-bearing element, the rafter, is alone. Current engineering analysis methods do not take this composite action into account when evaluating rooftop strength. Two Sandia research reports, “Structural Code Considerations of Solar Rooftop Installations” and “Empirically Derived Strength [...]
The PV Value® tool is now being developed and maintained by Energy Sense Finance, LLC, with funding provided by the DOE SunShot Small Business Innovative Research program. The tool is still free, though improved with a design to support multiple web browsers and mobile devices, including tablets and smartphones. The spreadsheet version of PV Value® [...]
