Looking to insulate my 30x40x12 pole building in South Central PA. I found a really good deal on Owen's Corning ecotouch unfaced R13 insulation. 4' wide x 75' rolls. I plan to hang this vertically on the walls, then run vapor barrier, inside girts and install OSB. What is the proper method for attaching this to the walls. Also do I just attach at the top and let it hang or attach at every girt?
