![]() ![]() Pros & Cons of Using MLV Pros of Mass Loaded Vinyl: MLV and Wall Blokker in Field Installation.Consensus on MLV and Soundproofing Membranes.Certain manufacturers can actually extrude custom roll lengths for taller walls, to make installation easier and minimize material waste. MASS LOADED VINYL FOR CEILING MOVIEMass Loaded Vinyl is often used to soundproof movie theater walls, and increase the STC rating. While these products typically cost around $0.30/sf to manufacture, the retail prices vary widely from $1.00-$8.00/sf. When considering an MLV supplier, it is critical to ask for performance data (lab and field) and compare pricing. The polymer is an extruded Polyvinyl Chloride (PVC) which is “mass-loaded” with a cheap filler, typically Calcium Carbonate or Barium Sulfate. Some of the trade names include MLV Blokker, TuffMass, AcoustiBlok, and Vinaflex, but many others are similar or equivalent. Standard Mass Loaded Vinyl is known by many trade names, though it is largely the exact same product extruded from the same few manufacturers in the US. double-studs or resilient channel), but can also be effective in industrial settings. ![]() MLV is most useful on steel-stud walls that can benefit from some additional weight while not needing significant decoupling or dampening (i.e. This is why a single layer of mass loaded vinyl can block as much sound (measured in STC rating) as 2-3 layers of drywall. This provides a thin, flexible membrane that adds significant mass to the wall (hence the name), but also adds flexibility to the partition. Mass Loaded Vinyl is simply an vinyl plastic that has heavy particles loaded into it during formulation, such as Calcium Carbonate (or in previous years, Barium Sulfate and Lead). While effective in many assemblies, it may not be as effective in others. First and foremost, it should not be considered a “panacea”. PrimaBlock loaded vinyl barrier is finished in black and is manufactured without the use of hazardous lead or heavy metals.What makes Mass Loaded Vinyl (also known as MLV) effective and what are its limitations? While it’s been around for several decades there is still a lot of misinformation about MLV within the construction industry. Total surface coverage is 135ft² (12.5m²). To install, loosely suspend between studs using staples and apply gypsum board directly on top. PrimaBlock vinyl barrier is sold by the roll with an overall dimension of 54” width (137cm) which provides a 6” (15cm) overlap when tacking two rows together to create a 96” (244cm) width (2 x 48”). ![]() It is also commonly used in the design and construction of soundproof enclosures and bass traps, or can be wrapped around pipes, ductwork or loud machinery because it is so flexible. Typically sandwiched between layers of drywall or ideally suspended in the airspace between wall surfaces, PrimaBlock barrier helps reduce noise from plumbing, HVAC ducts and adjoining rooms by adding mass to the wall assembly. PrimaBlock™ loaded vinyl barrier is a flexible, 1lb per square foot (4.9kg/m²) mass loaded vinyl that is used in construction to reduce sound transmission through walls, floors and ceilings. ![]()
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