heated underlayment for laminate flooring width:1.1m thickness:3mm,4mm,5mm,ect Laminated: ... Al foil,PE ,Non-woven dent heated underlayment for laminate flooring width 1.1m thickness 3mm-15mm density150kg/m3 lamination ... span of the carpet underlayunderlay reduces the echo of the laminate floor and makes it sound like a quality hardwood floor ...