Insulating Walls & Floors with DeciLAM or DeadenerVB5 Mass Loaded Vinyl Incorporating DeciLAM or DeadenerVB5 mass loaded vinyl insulation products into a floor or wall system can offer instant noise reduction blocking out un-wanted noise from neighbours. Once fitted DeciLAM or DeadenerVB5 can produce instant noise reduction properties throughout most applications, whether that be brick outer walls, plasterboard partition walls or from floor to ceiling. Ease of fitment is a question we get asked