ACOUSTIC FLOOR UNDERLAYMENTS
Floor Impact Noise Control
for Every Type of Surface
Engineered underlayments that reduce impact vibration and sound transfer through concrete and wood floor assemblies to deliver comfort, privacy, and acoustic performance.
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Engineered Underlayments for Every Flooring Application
Footfall, furniture movement, and mechanical vibration can transmit through floors, degrading acoustic comfort and privacy between spaces. Acoustic floor underlayments create an engineered layer of isolation that absorbs impact energy and minimizes sound transmission.
Apartments or other facilities who deal with annoying noise being coupled from above-level units through plywood or similar rigid flooring materials will benefit greatly from the installation of underlayment material
Whether installed under tile, hardwood, carpet, or luxury vinyl, these high-performance underlayments meet stringent IIC (Impact Insulation Class) and STC (Sound Transmission Class) standards, ensuring compliance with IBC, LEED, and local building code requirements.
Apartments or other facilities who deal with annoying noise being coupled from above-level units through plywood or similar rigid flooring materials will benefit greatly from the installation of underlayment material
Whether installed under tile, hardwood, carpet, or luxury vinyl, these high-performance underlayments meet stringent IIC (Impact Insulation Class) and STC (Sound Transmission Class) standards, ensuring compliance with IBC, LEED, and local building code requirements.
Common Applications:
- Multifamily housing and apartments
- Hotels and student housing
- Office and mixed-use developments
- Retail, restaurants, and healthcare facilities
- Educational and institutional buildings
- Gymnasiums and other athletic facilities
Product Overview
ACOUSTIC FLOOR UNDERLAYMENTS
CeraZorb® LD
CeraZorb® LD (Low Density) provides a cost-effective solution for controlling impact sounds under a wide range of flooring finishes. Designed for lighter commercial and multifamily use, it delivers acoustic isolation, moisture resistance, and comfort underfoot.
Performance & Design Highlights:
- Excellent for residential, hotel, and light commercial flooring systems
- Lightweight and easy to install
- Provides effective sound attenuation through vinyl plank, laminate, and carpet
- Resistant to moisture and temperature variations
- Sustainable and 100% recyclable
- Thickness: 5mm (3/16")
- Density: 5 lb/ft³
- IIC Rating: Up to 56 (depending on assembly)
ACOUSTIC FLOOR UNDERLAYMENTS
CeraZorb® HD
CeraZorb® HD (High Density) is a high-performance, closed-cell extruded foam underlayment designed for use under hard surface flooring such as tile, stone, and engineered hardwood. It offers superior impact sound reduction and load distribution while maintaining compressive strength and dimensional stability.
Performance & Design Highlights:
- Ideal for tile, stone, LVT, and hardwood floors over concrete or wood substrates
- High-density structure resists crushing and maintains long-term performance under heavy loads
- Compatible with radiant heating systems and thinset mortars
- Moisture-, mold-, and mildew-resistant
- Density: 8 lb/ft³
- Delta IIC 23 on a 6” concrete slab
- Thickness: 3 – 10mm
ACOUSTIC FLOOR UNDERLAYMENTS
Impacta® Adhesives
Impacta® Adhesives (T-440 & T-950) are specially formulated to bond acoustic underlayments and flooring materials without compromising acoustic performance. Designed for use with Impacta®, CeraZorb®, and ProBase™ products, they provide excellent adhesion, fast curing, and low VOC emissions.
Performance & Design Highlights:
- Maintains acoustic isolation by increasing underlayment compliance (ability to absorb vibration)
- Suitable for tile, vinyl, hardwood, and sports flooring systems
- Low odor, solvent-free, and environmentally compliant
- Available in trowel-applied, roller-applied, or spray versions
- VOC Content: <50 g/L (compliant with LEED EQ 4.1)
- Cure Time: 24 hours typical
ACOUSTIC FLOOR UNDERLAYMENTS
Jumpax®
Jumpax® is a dual-layer, fast-install acoustic subfloor system that provides superior impact sound reduction under a wide range of finished flooring materials. The system features an interlocking, floating underlayment design that creates a smooth, rigid surface ideal for renovations and retrofit applications.
Performance & Design Highlights:
- Provides superior soundExceptional acoustic performance under LVT, vinyl, and laminate flooring. transmission loss for heavy mechanical systems
- No adhesive required between layers — dry installation saves time and money
- Smooths out minor subfloor irregularities
- Compatible with radiant heating systems
- Thickness: 10.5mm (approx. ⅜")
- IIC Rating: 55 – 60+ (depending on assembly)
ACOUSTIC FLOOR UNDERLAYMENTS
ProBase™ Rubber
ProBase™ Rubber is a high-density, recycled rubber acoustic underlayment that combines durability with superior impact isolation. Designed for commercial, institutional, and residential applications, it performs exceptionally well beneath hard surface flooring.
Performance & Design Highlights:
- Provides high IIC and STC ratings under tile, vinyl, and hardwood floors
- Excellent resilience and long-term compression recovery
- Compatible with thinset, floating, or glue-down systems
- Moisture- and mold-resistant, suitable for wet or dry installations
- Thickness Options: 3mm – 12mm
- IIC Rating: 23 – 57 (depending on assembly)
- Density: (ASTM D-792) 43 Lbs / cubic ft
- Standard sizes: 4ft (W) x 25ft & 50ft (L) Rolls
ACOUSTIC FLOOR UNDERLAYMENTS
ProBase™ Sport
ProBase™ Sport (Large & XL) is a high-resilience acoustic underlayment designed for use under gymnasium, multipurpose, and fitness flooring. It delivers exceptional impact isolation.
Performance & Design Highlights:
- Supports wood, vinyl, and synthetic athletic floor systems
- Excellent durability and shock absorption
- Resistant to moisture and heavy rolling loads
- Standard Tile Dimensions: 24" x 24" x 3/8" (L) or 24" x 24" x 1" (XL)
- Shock Absorption: 35–55% (ASTM F2772)
ACOUSTIC FLOOR UNDERLAYMENTS
ProBase™ Vinyl
ProBase™ Vinyl is a low-profile, resilient acoustic underlayment engineered for LVT, sheet vinyl, and other resilient flooring systems. Manufactured without rubber, it eliminates the risk of plasticizer migration and is constructed from a durable polyurethane foam and cork composite.
At just 3 mm thick, ProBase™ Vinyl delivers meaningful impact sound reduction while maintaining long-term dimensional stability and performance under point loads.
At just 3 mm thick, ProBase™ Vinyl delivers meaningful impact sound reduction while maintaining long-term dimensional stability and performance under point loads.
Performance & Design Highlights:
- For use under both dry back and glue down LVP/LVT, sheet vinyl, carpet and carpet tile flooring
- Offers long-term performance without collapse or bottoming out
- Suitable for both new construction & renovations
- Roll Size: 39" x 65' x 6" (213 sq ft roll)
- Weight Per Roll: 65lbs
- Density: 45 lbs./ cubic ft
- IIC Rating: 22
ACOUSTIC FLOOR UNDERLAYMENTS
Performance & Design Highlights
Our engineering team ensures every system is properly specified, installed, and verified for optimum results.
- High Acoustic Performance: Achieves up to IIC 72+ and STC 68+ depending on assembly.
- Material Versatility: Compatible with concrete, gypsum, wood subfloors, and radiant heating systems.
- Surface Compatibility: Ideal for tile, LVT, hardwood, carpet, and stone finishes.
- Durable and Resilient: Made from recycled rubber or polymeric foam for long-term compression recovery.
- Moisture and Mold Resistant: Suitable for wet-set or dry-set flooring applications.
- Low-VOC and Sustainable: Contributes to LEED and WELL Building Standard credits.
- Tested Assemblies: Backed by ASTM E2179, E492, and E989 performance data.
ACOUSTIC FLOOR UNDERLAYMENTS
Installation & Integration
Memtech provides complete system design and field coordination, ensuring underlayments are installed correctly for maximum performance.
Things to consider:
- Ensure clean, level, and dry surfaces prior to installation.
- Can be installed loose-laid, glued, or floated depending on flooring type.
- Use compatible tape or adhesive to seal joints and maintain sound continuity.
- Maintain a resilient gap around walls and penetrations to prevent flanking noise.
The Memtech Advantage.
We combine solid engineering, proven materials, and field expertise to deliver flooring systems that meet the acoustic, structural, and design needs of your project.
Data-Driven Design
Our recommendations are based on vibro-acoustic data acquired at your location (or per your requirements) while not relying solely on product ‘spec sheets’
System Integration Expertise
We ensure floor assemblies interface seamlessly
Long-Term Reliability
Materials selected for durability under temperature, humidity, and vibration stress
Material Procurement
Authorized supplier of Sound Seal, QT, and Impacta® acoustic underlayments
Local Turnkey Implementation
Design assistance, material supply, and field verification
Performance Verification
Optional field measurement and verified acoustic performance
Technical Highlights
High-performance floor underlayments for commercial applications. All systems tested to ASTM E2179, E492, and E989.
Material Composition
Recycled rubber, polymeric foam, or fiber composites
Thickness Options
2mm – 12mm (standard), custom available
Density
1.6 – 2.2 lb/ft³ (varies by type)
Acoustic Rating (IIC)
Up to 60+ (depending on floor assembly)
Fire Rating
Class A per ASTM E84
Moisture Resistance
Compatible with adhesives and vapor barriers
Sustainability
Recycled content up to 90%
Technical Data &
Product Literature
CeraZorb LD
CeraZorb LD 3MM Data Sheet
CeraZorb LD 5MM Data Sheet
CeraZorb LD 10MM Data Sheet
CeraZorb LD Safety Data Sheet (SDS)
CeraZorb HD
CeraZorb LD 3MM Data Sheet
CeraZorb LD 5MM Data Sheet
CeraZorb LD 10MM Data Sheet
CeraZorb LD Safety Data Sheet (SDS)
Impacta Adhesive
T-440 Safety Data Sheet (SDS)
T-440 Trowel Spread Specifications
T-950 Safety Data Sheet (SDS)
T-950 Trowel Spread Specifications
Probase Rubber
Probase Rubber 3MM Data Sheet
Probase Rubber 5MM Data Sheet
Probase Rubber 6MM Data Sheet
Probase Rubber 10MM Data Sheet
Probase Rubber 12MM Data Sheet
Probase Rubber Safety Data Sheet (SDS)
Installation Guidelines & Case Studies
CeraZorb LD Installation Instructions
CeraZorb HD Installation Instructions
Jampax Installation Instructions
Probase Rubber Installation Instructions - Tile
Probase Rubber Installation Instructions - Hardwood
Probase Sport Installation Instructions (L)
Probase Sport Installation Instructions (XL)
Probase Vinyl Installation Instructions
Massachusetts Institute of Technology (MIT) Case Study
Support Beyond the Product
Installation assistance available for Michigan and Great Lakes region clients
Engineering consultation to ensure proper material selection
Custom sizing and integration with other Memtech acoustic systems
Replacement panels and parts available for future reconfiguration
Frequently Asked Questions (FAQs)
What type of noise do acoustic underlayments reduce?
They primarily reduce impact noise (footsteps, dropped objects) and airborne transmission through floor assemblies.
Can underlayments be used under any flooring material?
Yes. Systems are available for tile, vinyl, carpet, wood, and laminate. Memtech helps match the underlayment to each finish and subfloor type.
How much sound reduction can I expect?
Typical improvements range from 8–20 dB in IIC performance depending on assembly thickness and finish flooring.
Are these underlayments moisture-resistant?
Yes. Many systems include integrated vapor barriers or can be paired with membranes for moisture control.
Can acoustic underlayments be used with radiant heating?
Absolutely. Rubber and foam systems are compatible with radiant floor heat without affecting performance.
How are they installed?
Most underlayments can be rolled out and taped, glued, or floated under the finished floor. Memtech provides detailed installation drawings for each flooring type.
Do you provide turnkey services?
Yes. We provide full-service delivery, measurement, engineering, design/build, installation, and post-installation validation. You receive a complete, proven solution from one, accountable partner.
What’s the typical lead time for material supply?
Most standard rolls are stocked and available within 2–3 weeks, with custom composites or outdoor-rated versions typically shipping in 4–6 weeks.
Let’s Engineer the Right Solution, Together.
Let's Get Started. Contact Us.
Talk to our experts. We’ll assess your needs and recommend a solution that works for your project.
