What R value are you trying to achieve. I take it you are in Iowa Zone
5 ? . A space to live in should have R 35 minimum and up to R 70+. What is beam depth. Foamboard could be used for the final piece to hold it in place. Or how are you planning on finishing it. Vapor barrier should face down to the floor, not roof. What is the bldg for, finish and heat cost desire.- Vote on answer
- posted
19 years ago