mammahen ~ I think it was you asking about using the feed bags as tarps? I have used them for tarps and they do degrade in the sun. The worst with the ones I have used is the flim of color separates from the base bag and then the little pieces blow around to be picked up. The white base lasts a lot longer with the only problem I have encountered is sometimes a bird starts working on the edge and unraveling it. But, yes it works, is somewhat temporary, they are water proof. Just know they will need to be watched for a problem and replaced when necessary. Hey, they are free!!!