The nail-down flooring should be nailed to an extra subfloor layer. The subfloor layer should be thick adequate making sure that nails do not protrude. The Iso-Stage® flooring underlayment would reside below this layer, no cost from any penetrating nails.Preferably, we would use a material with 5kg/m2 and 10kg/m2. By making use of two various prod… Read More