The nail-down flooring need to be nailed to an additional subfloor layer. The subfloor layer ought to be thick enough so that nails never protrude. The Iso-Step® flooring underlayment would reside below this layer, absolutely free from any penetrating nails. Impact Insulation Class (IIC), a rating system that shows how https://acoustic-floor-underlay37301.bloggosite.com/46291464/5-simple-techniques-for-acoustic-floor-underlay