![]() ![]() Consensus on MLV and Soundproofing Membranes: Soundproof floor underlayments can be MLV based or crumbled rubber based (most common), and are mainly used in multi-family developments. Mass Loaded Vinyl can also be used to improve the STC and IIC rating of floor assemblies. However, for long-term projects that can afford a premium soundproofing materials then Wall Blokker provides superior performance and results. For projects that have significant cost restraints, MLV might be the only option to increase the STC without breaking the bank. NOTE/DISCLAIMER: Commercial Acoustics offers both PVC-based Mass Loaded Vinyl as well as Ethel Vinyl Acetate (EVA) soundproofing membranes, and numerous other types of soundproofing products (including acoustic gypsum, resilient vibrational products, and mineral wool, among others).īy offering several approaches to achieve STC targets, and always supplying lab-tested supporting data, we believe that customers can compare apples-to-apples performance data with price comparisons in order to determine the best material for their projects. Although it does improve STC rating, it is much more effective when used on staggered wood studs, and performs even better on metal studs. Mass Loaded Vinyl does have some limitations when used on wood studs. Off-gassing: The plasticizers in MLV can off-gas at room temperature over time, diminishing its acoustic performance.Tear Strength: Low tensile strength makes tears common without proper support.Installers should ask for detailed installation instructions and/or a complimentary site visit Installation Difficulties: Can be challenging to install due to high weight, flexible material.Resilient Channel), MLV tends to perform near its lab value even when installation conditions are not ideal ![]() Field Performance: While many products test well in the lab, but underperform in the field due to grounding issues (i.e. ![]() Skilled technicians can install 700/SF of material per day. Scheduling: Along with cost savings, using Mass Loaded Vinyl Barrier instead of multiple layers of drywall also provides schedule savings.Most Mass Loaded Vinyls will cost about $1-$2/sf, but some thinner variations (standard is 1/8″, but it can come in 1/16″ thickness) may be as cheap as $0.50/sf. Pricing: Numerous suppliers of near-identical polymers makes it easy to shop around for best price. ![]() Pros & Cons of Using MLV Pros of Mass Loaded Vinyl:
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