I could never use foam anything around my girls. They eat it and will go for it as a preferred food. It can't be good for them, so I have had to stop working with it where they can get to it. The upper level of my coop is floored with a sheet of vinyl, and it works very well. The lower level is deep litter, so they can move up and down throughout the day, plus the pop door to the run is open all day, with alfalfa spread over the ground, so they can peck and dust bathe. It has all worked well together. Good Luck!