It looks like I'm going to have to pull the old T1-11 off the south side of
the house due to delamination. While I'm torn down to the insulation is
there a material that would use the same space as the old fiberglass
insulation (1973 construction)? The southern exposure causes the room to
heat up badly in the summer. I'm thinking a closed cell foam or a spray on.
Or, isn't it worth it?