I am using regular R-20 bat insulation in between my studs in my concrete basement. I am using 2 X 4 studs but they will be roughly 6" away from the wall so there will be a gap between each stud and concrete wall. I am doing this b/c my walls are not straight and I don't what my studs touching the wall. I want to cut strips of the Polystyrene Rigid insulation to tuck in behind the studs. I will try to make each strip snug but I assume I should still fasten/attach them to the stud. Can I use regular wood screws to attach these stips to the studs? Or should I use tape? Or is this just a bad idea?
thanks
c
thanks
c