I really don'thave a place to stash sheets of insulation board or the like. I have a suspended ceiling so I used metal plant hooks that clip to the metal framing structure. Then I took an old flannel sheet, put a rod pocket in one end and inserted a lenght of PVC pipe in that pocket. Attached 'cafe curtain hooks' to the top of the rod pocket. I can hang this sheet against the wall and pin to it. Then it can but taken down and rolled up for storage.