
Floor Underlayments
Floor Underlayment Regular – 4' x 25' roll (100 sq ft)
$239.00
1/4" (6mm) EVA-based mass loaded vinyl membrane with polyester scrim — engineered to deliver combined STC and IIC performance under wood, tile, stone, carpet, and vinyl. The most cost-effective way to meet building code STC/IIC 50 on a wide range of wood-frame and concrete floor-ceiling assemblies. Approved for all UL L500 Series. Made from post-industrial recycled automotive materials. Non-PVC, no off-gassing, mold & mildew resistant per ASTM D3273.
Quantity
Coverage
100 sq ft
Total
$239.00
Technical Specifications
Key Features
- 1/4" thick EVA membrane + polyester scrim composite
- Delta IIC 26 — IIC 56 with LVT on wood truss
- IIC 70 with LVT on 6" concrete; IIC 53 with ceramic tile on concrete
- Approved for all UL L500 Series assemblies
- Class 1 flammability rating (ASTM E84 Rev. A)
- 1-hour fire resistance wall rating (ASTM E119)
- 100% recyclable at end of life — non-PVC, no off-gassing
- TCNA-approved for light commercial use under ceramic/porcelain tile
Installation Notes
- Install rate: ~2,000 sf per man-day
- Staple or screw to wood subfloor — also approved for floating floors
- EVA (black) side UP for hardwood, engineered wood, carpet tile, LVT, VCT, laminate
- EVA (black) side DOWN for ceramic tile and floating floors
- Use polymer-fortified grout under tile finishes
- Adhere to subfloor with premium polyurethane-based vinyl tile adhesive (no water-based latex)
- Tape seams with approved impermeable tape — no overlapping, no openings > 1/16"
Common Applications
Discover how our soundproofing solutions can transform your space
Residential
Home Theaters
Create cinema-quality acoustics without disturbing others
Bedroom Walls
Block noise from adjacent rooms for better sleep
Apartments
Reduce noise transmission between units
Music Rooms
Practice instruments at any hour
Commercial
Office Buildings
Improve privacy in conference rooms and private offices
Hotels
Enhance guest experience with soundproof rooms
Restaurants
Control noise levels for comfortable dining
Recording Studios
Professional-grade acoustic isolation
Industrial
Manufacturing Facilities
Meet OSHA noise regulations
HVAC Enclosures
Reduce mechanical noise
Equipment Rooms
Contain machinery noise effectively
Data Centers
Sound control for server rooms
Customer Reviews

"In our high-end projects, this is our standard spec for IIC 50+ ratings. The EVA-based construction provides exceptional impact noise isolation that residents demand. Used in hundreds of units with consistently excellent results."
Christine Ramirez
Luxury Condo Developer • Miami, FL

"After testing various products, this proved most reliable for apartments. The 0.7 lb weight provides substantial noise reduction, and the scrim layer adds durability for rentals. Consistently delivers on acoustic promises."
Brandon Lee
Multi-family Construction Manager • San Jose, CA

"Completely renovated our two-story home. Before, we heard every footstep from upstairs. Now it's remarkably quiet - you'd never know someone is walking up there. The improvement in our home's comfort is substantial."
Michelle Santos
Homeowner • Portland, OR

"From a code compliance perspective, this is one of few products consistently meeting IIC requirements in multi-family buildings. Clear specs and test data make my job easier. It's properly engineered for the application."
Peter Nakamura
Building Code Inspector • Denver, CO

"Guest satisfaction heavily depends on sound control between floors. We used this throughout our hotel renovation - noise complaints have virtually disappeared. Investing in quality soundproofing directly improved our ratings."
Ashley Turner
Hotel General Manager • Charleston, SC

"Excellent balance of acoustic performance and sustainability. I've specified it for LEED projects with bamboo and eco-friendly materials. The EVA composition is environmentally conscious and the durability reduces lifecycle waste."
Eric Henderson
Sustainable Building Consultant • Portland, OR
Learn More About Floor Underlayment Regular
Free expert guides to help you plan your soundproofing project.
Our Complete Product Line

MLV Lite
0.6 lb/sf • 1/16" thick
STC 21 • 100 sq ft
$149

MLV Regular
1 lb/sf • 1/8" thick
STC 26 • 100 sq ft
$199

MLV Pro
2 lb/sf • 1/4" thick
STC 29 • 100 sq ft
$279

Underlayment Lite
1/10" thick • 0.12 lb/sf
Delta IIC 25 • 100 sq ft
$199

Underlayment Regular
3/16" thick • 0.7 lb/sf
Delta IIC 26 • 100 sq ft
$239

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