Attic Question

During the construction of our home, the General Contractor installed unfaced fiberglass insulation. Some of it was pink and some of it was white. He said the white was less irritating to the workers. We're not getting along too well and have found some troubles in our home, due to the fact he didn't follow specifications. And now I think about the insulation -- how do I know it is R-30 HD fiberglass? I never saw the bags, the insulation has no markings on it and I don't know the source. I do have a 3' x 3' sample of it. One of our other workers said it compressed awfully easy for a high density product, that's what prompted my question. Asking the GC isn't an option. Any suggestions?

I have an unfinished basement with fiberglass insulation in the ceiling between the studs. The yellow fiberglass is exposed and held up with small steel rods. My wife wants me to either staple some paper up there to cover the fiberglass or some other alternative...preferable less expensive than finishing the ceiling. What I dont want to do is something that is going to trap moisture and screw up my flooring...I do have a dehumifier and live in a high humidity area. the walls are mostly insulated with overlying sheetrock, except where there is the concrete walls... Any recommendations? The basement is about 1700 square feet that we carpeted and made into a huge playroom, a gym, and a hobby area, as well as a room for storage..... Thanks a bunch in advance!!