Cork board rolls are well known for there natural ability to be acoustically absorbent which is why it works well under hardwood floors or ceramic tiles. The natural shock absorbent and hypo allergenic properties make it a great alternative to carpet pads. Its inherent thermal characteristic is not only appealing for flooring but for walls and ceiling applications. AmCork's Underlayment Rolls are great for bulletin boards as well. It is often a requirement by condominium associations and other high rise structures for sound control.