In order to lay laminate flooring on old wooden floorboards, there are a few things to bear in mind: As a general rule, polyethylene film should not be used as an intermediate layer, as there must be an exchange of moisture between the laminate flooring and the old floorboards. You should also take any unevenness in the subfloor into account. This can be evened out with a thicker underlay mat, such as XPS Maxima or special wood fibre boards. At LOGOCLIC you will find different underlays such as impact sound insulation, vapour barrier or thermal insulation. Some products are true all-rounders.