So I've read through all the literature on here, and even made a trip to Home Depot (didn't have the right material), but it occurs to me that my closet/vocal booth has a shelf running along one side near the top. It might complicate things if I'm using wooden frames... Would it be effective or nearly as effective, if I just got the insulation and stuck it against the wall with chicken wire? I don't give a shit how it looks.