Insulation forms an integral part of any well designed underfloor heating system. Ambient offer insulation options to suit your specific project requirments. MARMOX - A reinforced cement coated tile backer board for use beneath under tile mat & cable systems. BLUEBOARD - A non coated economy board for use beneath under tile mat systems. DEPRON - A soft closed cell insulation for use beneath laminate and wood floors, use with Thermolam. NOTE : Insulation board only to be purchased when ordering underfloor heating.