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ENVIROFLEX™ MASS LOADED VINYL

Soundproofing Applications for Mass Loaded Vinyl

Use added mass to reduce sound transmission through walls, floors, ceilings, vehicles, pipes, ducts, and mechanical enclosures.
Shop Mass Loaded Vinyl MLV Installation Guide STC Explained
Walls & Shared Spaces

Add Mass Where Sound Is Passing Through.

Mass Loaded Vinyl is used as a flexible sound barrier in wall, floor, ceiling, vehicle, pipe, and mechanical assemblies. Choose the application below to see the recommended approach, material weight, and installation considerations.

Apartments, condos & shared walls

Stop Hearing Your Neighbor.Without Opening the Walls.

1LB MLV installs as a retrofit over existing drywall — no demolition, no stud access required. In a standard wall assembly with batt insulation, it brings the wall to STC 41, where loud speech becomes muffled and barely intelligible.

Apartments
1LB MLV (STC 26) — right for this application: STC 41 in standard wall assembly is the residential target. 2LB is rarely necessary for apartment shared walls — the additional mass and cost is hard to justify when 1LB achieves the required performance.
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Step #1

Calculate Coverage

Wall height × width for each wall. Add 15% waste. One roll of seam tape per 2–3 MLV rolls.

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Volume Pricing

Automatic savings on larger orders with quote support for fleet needs.

RESIDENTIAL

Soundproof bedrooms, home offices, apartments, and shared living spaces.

Residential soundproofing often starts with walls, floors, and ceilings where airborne noise moves between rooms or neighboring spaces. MLV adds dense mass while keeping the assembly relatively thin.

Common residential applicationsShared walls · Bedrooms · Home offices · Apartments · Floors · Ceilings
Walls | Floors | Ceilings | Bedrooms | Home offices
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Where MLV fits

1

Shared walls

Add mass within the wall assembly to help reduce airborne sound transmission between rooms or units.

2

Floors and ceilings

Use MLV as a continuous mass layer within the assembly; pair with impact-isolation materials when footfall is the main issue.

3

Bedrooms

Target adjoining walls, ceilings, and other transmission paths where privacy and nighttime noise matter.

4

Home offices

Improve speech privacy and reduce household noise entering or leaving the workspace.

5

Seal the weak points

Treat seams, penetrations, gaps, doors, and flanking paths as part of the complete sound-control plan.

COMMERCIAL

Control noise in offices, multi-use spaces, mechanical areas, and new construction.

Commercial projects often need repeatable material specifications, predictable coverage, and support for larger quantities. MLV can add mass to partitions, ceilings, enclosures, and mechanical applications without requiring a thick masonry layer.

Built for project-scale planningContractor quantities, repeat orders, commercial quoting, and material planning are available.
Offices | Multi-use | Mechanical | New builds | Contractors
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Typical commercial needs

OfficesSpeech privacy
Multi-use spacesRoom-to-room isolation
Mechanical areasEquipment breakout noise
New constructionAssembly mass
ContractorsProject quantities
Commercial buyersQuote support

AUTOMOTIVE

Add mass where road, tire, drivetrain, and exterior noise enter the vehicle.

MLV can be cut to fit floors, wheel wells, doors, trunks, cargo areas, partitions, and firewalls. The goal is to add a dense barrier while preserving access to seats, wiring, drains, trim, ventilation, and safety systems.

Common vehicle areasFloors · Wheel wells · Doors · Trunks · Firewalls · Cargo vans
Cars | Trucks | Cargo vans | Floors | Wheel wells
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Always preserve access to airbags, seat mounts, wiring, controls, drains, ventilation, and service points.

STUDIO / THEATER

Keep sound from traveling while treating the room for better acoustics.

Studios, podcast rooms, home theaters, and gaming spaces often need two different strategies: transmission control in the building assembly and acoustic treatment inside the finished room. MLV addresses the barrier side of that equation.

Blocking and absorption are different jobsUse MLV to add mass to walls, ceilings, floors, doors, or enclosures. Use acoustic treatment to control reflections and reverberation inside the room.
Podcasts | Recording | Home theater | Gaming | Media rooms
Compare MLV vs acoustic foam →

COMPLETE STRATEGY

Transmission control + room treatment

MLV can help reduce sound passing through the assembly; absorptive room treatment can help control echo and reverberation within the occupied space.
Learn the difference →

NOT SURE WHERE TO START?

Plan the application first, then choose the material quantity.

Start with the surface you need to treat and the noise path you are trying to control. From there, use the calculator to estimate coverage or contact us for help with a larger project.

Need project help?We can help with weight selection, coverage, roll sizing, and commercial quantities.
Calculator | Product selection | Commercial help
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For complex assemblies or code-sensitive projects, confirm the complete system requirements with the project designer or applicable professional.
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Shop Mass Loaded Vinyl

Choose from popular 1 LB and 2 LB EnviroFlex™ Mass Loaded Vinyl sizes, plus seam tape for clean, continuous installations.

1 LB · 2 LB · SEAM TAPE
APPLICATIONS FAQ

Common Questions About MLV Applications

Practical answers specific to this soundproofing topic.

Need Help?

Not sure which option is right?

Use this area to point customers toward a guide, quote form, contact form, size chart, or installation resource.

Common Questions
Can MLV be used in both residential and commercial projects?

Yes. MLV is used to add dense mass to walls, ceilings, floors, enclosures, pipes, ducts, and other assemblies in both residential and commercial settings.

Is MLV useful in vehicles?

Yes. MLV can be cut to fit floors, wheel wells, doors, trunks, cargo areas, partitions, and other vehicle surfaces where added mass can help reduce transmitted road, drivetrain, and exterior noise.

Should I use MLV or acoustic foam in a studio?

They solve different problems. MLV is used to reduce transmission through an assembly; acoustic treatment is used to control reflections and reverberation inside the room. Many studios need both.

Which MLV weight should I choose?

1 LB MLV is easier to handle and suits many general applications. 2 LB MLV provides more mass per square foot when additional transmission loss is desired and the assembly can support the weight.

Tip: Add product-specific FAQ blocks for each category template so the answers match the product being sold.

SOUNDPROOFING RESOURCES

Continue Your Soundproofing Project

Use the resource library to learn the material, compare solutions, plan quantities, review installation, and explore applications.

START HERE Soundproofing Hub Start with the complete soundproofing overview and choose the right path for your project. Open hub MLV BASICS What Is Mass Loaded Vinyl? Learn what MLV is, how it works, and where it fits into a sound-control assembly. Learn about MLV PERFORMANCE STC Ratings Explained Understand STC terminology, material ratings, assembly ratings, and what the numbers do—and do not—tell you. Understand STC COMPARE MLV vs Acoustic Foam See why transmission control and room absorption solve different acoustic problems. Compare materials PLAN Soundproofing Calculator Estimate coverage, waste allowance, roll quantities, and material requirements. Open calculator INSTALL MLV Installation Guide Review installation guidance for walls, ceilings, floors, pipes, ducts, and vehicles. View install guide
READY TO PLAN YOUR APPLICATION?

Choose the MLV or Get Help With Your Project

Shop EnviroFlex™ Mass Loaded Vinyl, use the calculator to estimate material requirements, or contact us for help with a larger residential, commercial, automotive, or studio project.

✓ Residential, commercial, automotive, and studio applications
✓ 1 LB and 2 LB MLV options
✓ Project calculator and installation resources
✓ Commercial quote support
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