I installed fiberrock in my kitchen,now I have good size vet bills because of the fiber glass residue my persian and Hymilayan cats are loosing patches of hair because of irritated skin. I wish had known the contents of fiber rock as I probably would not have purchased it.I had asked for a different product at the local Menards store but they were out of the product and said to use fiber rock because it is a underlayment. I need to find a Rep for the fiber rock co to discuss this.