What would your recommendation be other than spray foam for a  20′ x 24′ metal building for insulation and condensation control. I am totally confused after searching through all the available products on line. I am mostly concerned with condensation from/ with temperature difference when heat is used in the building. Naturally would like some insulation so when I run a heater I can achieve some acceptable temperature in the in the winter. I’m sure you have had a questions like this before. One recommendation  was Al Foil Bubble  EPE Woven 17. mil thickness suppose to have a R-17 ? I know your articles on Bubble insulation but I’m not sure what woven epe is different. would 2″ foam board with a face of foil be good?