This is my solution of getting a similar benefit to using spray foam insulation to finish a pole barn (heated shed/shop) that is cheaper, and you can do yourself. See Part Two (What We Learned) HERE: https://youtu.be/efb4cFFH-Mk You can buy all the products at your local lumber store. Links: Great Stuff Pro: https://www.greatstuff.dupont.com/?utm_source=GoogleAds&utm_medium=PaidSearch&utm_campaign=Other&utm_content=unassigned&gclid=CjwKCAjwr56IBhAvEiwA1fuqGsfk690YpqKrrmzQcdXGhFqS3q35dk7-6xe6lArjHdGGkyIxytzJ2RoC41sQAvD_BwE Insulation foam board: https://www.menards.com/main/building-materials/insulation/foam-board-insulation/owens-corning-reg-foamular-reg-r-7-5-polystyrene-foam-board-insulation-1-1-2-x-4-x-8/270815/p-1444450490231-c-5779.htm?tid=-4306956643793661104&ipos=1 Tape: https://www.menards.com/main/building-materials/siding/house-wrap/1-88-x-163-8-red-sheathing-tape/1613222/p-1444436062851-c-13381.htm?tid=7456426715765029945&ipos=2 Rock Wool Wall insulation: https://www.rockwool.com/north-america/products-and-applications/products/comfortbatt/?selectedCat=comfortbatt%C2%AE%20downloads