Laminate Floor Underlayment will increase the life of your new laminate flooring and will help with noise reduction. This Laminate Underlayment is a sheet of material that is typically installed on the top surface of the sub floor. It acts as a base for the laminate sheets or tiles that are to be installed. The sub-floor provide the foundational support of the room in question, while the laminate flooring padding is the foundation for the floor, and is intended to generally enhance and protect the flooring itself, giving you peace of mind.