Hereās a decent article that discusses the āR-valueā of insulation
Your master guide to insulation for pole barns: types of insulation, benefits + all-in-one Prodex. products
www.insulation4less.com
You want something that will do the job for your climate conditions. The insulation generally comes in rolls but I THINK it can also be bought in panels, which would make it much easier to install if you have to do it yourself
If you have a building supply place nearby, hopefully they have knowledgeable employees that could help you<ā- I say that after the two men on the Back Counter at my local Farm Co-op retired and the new help are young girls who say ālet me google that for youā
. My terse reply is āI can google it myselfā (and I silently add āyou idiotā)
****
The insulation is worth every penny. What was Installed on the barn ceiling 19 years ago is still doing its job. What was installed on the overhang roof 19 years ago has slowly been blown off by the tremendous wind storms we experience. Most of it now needs replaced but everyone wants to remove the roof and redo it with rolled insulation.
I believe insulation panels would be just as efficient. If I were still physically capable I would install the panels myself, just to prove a point, but I can barely man handle an 8ā step ladder these days, much less the extension ladder
Anyway I hope this link is helpful