The nail-down flooring need to be nailed to a further subfloor layer. The subfloor layer must be thick ample in order that nails do not protrude. The Iso-Stage® flooring underlayment would reside under this layer, free from any penetrating nails. It might be installed more than a wood or concrete https://acoustic-floor-underlay98007.shoutmyblog.com/37665370/not-known-details-about-acoustic-floor-underlay