Phone: (314) 878-6669
Fax: (314) 878-1150
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Ira J. Bernstein & Associates, Inc.
Creative Solutions to Meet Your Acoustical and Flooring Requirements
Division9 Resources

REGUPOL acoustics, a division of REGUPOL America, is a worldwide leader in the noise control field.
The portfolio for REGUPOL acoustics includes some of the most prestigious projects worldwide. Our products are designed for use in residential, commercial, and industrial applications. This includes acoustic floor underlayments, floated floors systems, resilient sound isolation clips, vibration isolation rubbers, and foams, and much more. REGUPOL products are GreenCircle Certified, a distinction confirming their sustainability and recycled content.

REGUPOL acoustics is a subsidiary of BSW GmbH in Germany who invented the technology for recycling foam and rubber into new products. Their Sonus brand is well known throughout the acoustics industry. Manufacturing facilities for sonus underlayments are located in Lebanon, PA.

REGUPOL is also well known worldwide for their sports and fitness flooring and have developed an acoustical sport floor AkustiPro.

REGUPOL acoustics has rebranded its products worldwide … Visit new website https://acoustics.regupol.com/us/ … Sonus HS Underlayment is now sonus core … Sonus LV300 is now sonus multi 3 … SonusWave is now sonus curve … SonusClip is now sonusclips … CEU offered On-line or by appointment with Ira Bernstein…

Get REGUPOL acoustics and enjoy peace and quiet…

Sound Control Underlayments

Need advice on your specific application? Ask the experts!

REGUPOL sonus core (formerly Sonus HS)

REGUPOL sonus core is a high performance acoustic underlayment engineered to reduce the transmission of impact sound between floors caused by footfall noise, dogs running, furniture moving and more.

  • Install under ceramic tile, stone, carpet, carpet tile, bamboo, solid and hardwood flooring
  • Install under SPC LVP floating floor if backing is not pvc/vinyl
  • Install under gypsum topping – thickness depends on thickness of gypsum
  • Depending on application, may be floated
  • Acoustic ratings up to STC 66, IIC 74, Delta IIC 27 depending on the floor covering and floor/ceiling assembly
  • Made from 89% recycled rubber content
  • Use REGUPOL acoustics Truebond or new Regupol 45-101 adhesive to glue underlayment to the substrate
  • Available in 48″ wide rolls
  • 6mm 36″x60″ sheets
  • 5mm, 10mm & 12mm in 30″ x 48″ sheets



REGUPOL sonus multi 3

Thanks to the smooth surface and its unique, rubber-free material composition, REGUPOL sonus multi 3 is the perfect acoustic underlayment for glue down vinyl floor coverings. With only 3 mm thickness, it is extremely light and well-suited to minimize floor height. The sonus multi 3 should not be installed under VCT flooring.

  • Sustainable product made from pre-consumer polyurethane foam and cork elastomer bond with polyurethane.
  • Contains zero rubber and will not cause plasticizer migration
  • Factory sanded to eliminate knife marks encountered during product manufacturing
  • Flawless, smooth finish to bond approved flooring coverings… sheet vinyl, vinyl planks, carpet tiles, core, and more
  • Use REGUPOL acoustics Trueset or new Regupol 43-106 adhesive for LVP/LVT glue-down installations.



REGUPOL Sonus XL 6mm

Introducing a new extra low durometer acoustical underlayment especially used under floated engineered hardwood and floated laminate flooring. Floor/Ceiling Assembly 6″ concrete, no ceiling testing @ IIC53 ΔIIC 24.



REGUPOL Sonus XL Curve 6mm **NOT SURE ABOUT THIS ONE **

REGUPOL Sonus™ XL Curve 6 is a low dynamic stiffness dimpled rubber underlayment that has been specifically designed, tested and manufactured for 4.5mm or greater WPC / SPC click vinyl flooring. The Sonus™ XL Curve 6 installed under floated WPC/SPC has the highest IIC ratings in the industry.


REGUPOL sonus curve (formerly SonusWave)

REGUPOL sonus curve is a high performance acoustic underlayment engineered to reduce the transmission of impact sounds. Sonus curve is installed as a floated floor undernormal weight concrete, lightweight gypsum topping, screed, plywood raft, solid and engineered hardwood floors, and floating floor systems.





Resilient Sound Isolation Clip

REGUPOL sonusclip SC100

The sonusclip SC100 is a resilient sound isolation clip used to attach gypsum wall board (GWB) to interior walls and ceilings. REGUPOL sonusclip SC100 is designed to reduce airborne and impact sound transmission. The sonusclip SC100 can be used in wood, steel, and concrete construction. Each REGUPOL sonusclip SC100 has a design load rating of 36 lbs. and can support up to two layers of 5/8″ gypsum board when spaced no more than 24″ x 48″ on-center.



REGUPOL sonusclip DE90

The sonusclip DE90 reduces the transmission of airborne and impact noise through walls and ceilings, including wood, steel, and concrete construction. Sonusclip DE90 is used to decouple wall framing, ceiling systems, and fixtures. The resilient rubber isolators used in the sonusclip DE90, absorb energy and improve STC (airborne) and IIC (impact) acoustic ratings.



REGUPOL sonusclip SLC

The sonusclip SLC is a self-leveling clip that reduces the transmission of airborne and impact noise through ceilings, including wood, steel, and concrete construction. sonusclip SLC utilizes a 1/4 in. threaded rod bolt that can be fitted with a number of hangers and bolt lengths that allow for field leveling of the ceiling while increasing the acoustics by decoupling the ceiling system. The resilient rubber isolators used in the sonusclip SLC, absorb energy and improve STC (airborne) and IIC (impact) acoustic ratings.





Panelized Floated Floor System

REGUPOL soundpanel

REGUPOL soundpanel is a panelized free-floated subfloor system designed to absorb airborne sound and dissipate structure-borne sound and vibration. Each factory assembled 4′ x 4′ soundpanel consists of a high quality OSB panel, fiberglass batting, and 9 REGUPOL SoundPad rubber bearings. REGUPOL soundpanel can be used in combination with a floated concrete topping, hardwood, ceramic tile, vinyl flooring, and many other assemblies.

Soundpanel can be used for noise and vibration control in a wide variety of applications.

Some common uses include:

  • Convention Centers
  • Performing Arts Centers
  • Fitness Studios and Gyms
  • Recording Studios
  • Cinemas
  • Mechanical Equipment Rooms





Vibration Controls

REGUFOAM vibration

REGUFOAM vibration is a mixed-cell polyurethane foam designed specifically for vibration and structure-borne sound isolation. It is available in 12 unique types, each for a specific load range.

REGUFOAM vibration offers outstanding internal damping and low frequency isolation at minimal deflection. This material comes in standard thicknesses of 25mm (1″) and 12.5mm (1/2″) and can be installed in multiple layers to achieve a thicker total thickness.



REGUPOL vibration

REGUPOL vibration is an acoustical elastomer made of rubber fibers, granules, and polyurethane. It is available in 8 unique types, each engineered for a specific load range. REGUPOL vibration is available in rolls or sheets depending on the type selected.

REGUPOL vibration offers low natural frequencies (f0 ≥ 7.5 Hz), which are constant over wide load ranges. This provides additional reliability when the actual loads differ from the design loads. REGUPOL vibration 200, 300, and 400 have a dimpled underside to decrease dynamic rigidity and provide an air gap for increased performance.

Ideal for a variety of applications, including building foundations (especially in areas near railways, airports, and earthquake prone regions), HVAC equipment, machines, pools, and gyms.





Acoustical Fitness Flooring

REGUPOL AkustiPro ML-70

Impacts from dropped weights, sports, treadmills, ellipticals, and rowing machines all create unwanted noise and vibration that can be easily transferred between spaces. REGUPOL acoustics has developed an incredible lineup of acoustical fitness flooring products designed to absorb and prevent the transfer of noise and vibration. These products are suitable for mixed-use buildings such as malls, corporate buildings, hotels, and residences.

A multi-layer system that is engineered to fit your specific needs while virtually seamless.



REGUPOL Accessories

REGUPOL® Sill Isolation Pads

REGUPOL® Sill Isolation Pads provide structure-borne sound isolation for interior walls including wood framed walls, steel framed walls, concrete block walls, and pour walls.


REGUPOL® Perimeter Isolation Strips

REGUPOL® Perimeter Isolation Strips reduce the transfer of noise and vibration between adjacent surfaces. Perimeter Isolation Strips decouple floors, walls, columns, pipes, and other protruding object.


REGUPOL® 3D Isolation Washers

REGUPOL® 3D Isolation Washers prevent the short-circuiting of acoustical isolation. 3D Isolation Washers reduce noise and vibration from transferring through mechanical fasteners and into the surrounding structure.


REGUPOL® soundpad

The REGUPOL® soundpad is a rubber bearing pad engineered to decouple, damp, and absorb vibration. Choose from two sizes: the x4 and x9. Each size provides a low and constant natural frequency over a wide load range. The natural frequency is dependent on the pressure applied to the soundpad. REGUPOL soundpad is available individually for customized spacing or as part of the REGUPOL soundpanel system.



REGUPOL is a registered trademark of REGUPOL BSW GmbH

REGUPOL Projects – Click on Photo to see Case Study

  • Regupol - Cable Mills

    Regupol - Cable Mills

  • Regupol - Avalon Communities Glendora

    Regupol - Avalon Communities Glendora

  • Regupol - University of North Carolina School of Medicine - Marsico Hall

    Regupol - University of North Carolina School of Medicine - Marsico Hall

  • Regupol - Colorado Health Foundation Headquarters

    Regupol - Colorado Health Foundation Headquarters

  • Regupol - Clover on Yonge

    Regupol - Clover on Yonge

  • Regupol - RBC Convention Centre Winnipeg

    Regupol - RBC Convention Centre Winnipeg

  • Terminal Condos sonusclip DE90

    Terminal Condos sonusclip DE90

  • Terminal Condos sonusclip DE90

    Terminal Condos sonusclip DE90

  • Terminal Condos sonusclip DE90

    Terminal Condos sonusclip DE90

Most Important Issues to Address Reduction of Airborne and Impact Sounds

  • Short Circuiting Resilient Channel in Floor/Ceiling and Wall Assemblies
  • Decoupling Walls from Floors and Ceilings
  • Potential Flanking of Sounds Through Openings

REGUPOL acoustics

Vibration Isolation Systems

REGUPOL acoustics Seminars

REGUPOL Adhesives

  • Trubond’s new name is REGUPOL 45-101
    Coverage 560-600sf/4gal
  • Trueset’s new name is REGUPOL 43-106.
    Coverage 600-800sf/4gal for porous substrates
    Coverage 740-980sf/4gal for nonporous substrates
  • Woodbond’s new name is REGUPOL 40-205
    Coverage 160-200sf/4gal under wood
    Coverage 500-740/4gal under sonus core

Acoustics Laboratory Testing

Various Suggested Uses for sonus Underlayment

  • Plywood – sonus core – LVP – Glued

    Plywood – sonus core – LVP – Glued

  • Plywood - sonus core – Eng Hardwood – Floated

    Plywood - sonus core – Eng Hardwood – Floated

  • Plywood - sonus core -Eng Hardwood - Glued

    Plywood - sonus core -Eng Hardwood - Glued

  • Plywood - sonus core – Ceramic

    Plywood - sonus core – Ceramic

  • Concrete – sonus core – ceramic

    Concrete – sonus core – ceramic

  • sonus curve - Concrete

    sonus curve - Concrete

  • Concrete - sonus curve – concrete – LVP – Floated

    Concrete - sonus curve – concrete – LVP – Floated

  • Concrete - sonus curve – Eng Hardwood – Floated

    Concrete - sonus curve – Eng Hardwood – Floated

  • Concrete – sonus curve – Plywood – Eng Hardwood - Floated

    Concrete – sonus curve – Plywood – Eng Hardwood - Floated

Inquire for Additional Approved Assemblies

Regupol Acoustics has Designed a New Website

See https://acoustics.regupol.com/us/

New…sonus multi 3 compatible for use under LVP/LVT

* help reduce potential indentations –
* not affected by plastercizers

Discontinued… sonus eco – replacing with sonus multi 3

Sonus Underlayment Price Increase Announced

Sonus underlayment price increase announced as of 10/13/21 due to world-wide shortage of some components used in manufacturing of rubber underlayment.

Regupol Adhesives

  • TruBond’s new name is REGUPOL 45-101
    Coverage 560-600sf/4gal
  • TrueSet’s new name is REGUPOL 43-106
    Coverage 600-800sf/4gal for porous substrates
    Coverage 740-980sf/4gal for nonporous substrates
  • Woodbond’s new name is REGUPOL 40-205
    Coverage 160-200sf/4gal under wood
    Coverage 500-740/4gal under sonus core

The Resource Center, AIA St Louis and USGBC St Louis sponsored Applications of Sustainable Products…Solutions for Noise & Vibration Issues, presented by Regupol Acoustics David Good, Applications Engineer.

The Resource Center and AIA St Louis sponsored Noise Control Solutions for Multi-Family Applications CEU, presented by Regupol acoustics

REGUPOL® Acoustics has rebranded their company and product names world-wide to maintain marketing consistency throughout their supply chain.

Sonus HS Underlayment is now sonus core, Sonus LV300 is now sonus multi 3, SonusWave is now sonus curve and leave as is… and Isolation Clips are now sonusclip SC100 (formerly SonusClip SC100), sonusclip DE90 (formerly SonusClip DE90) and SonusClip SLC now sonusclip SLC.

Sonus™ Tile Backer 6mm is being rebranded as Sonus™ Sheets 6mm

Sonus™ Sheets 6mm should only be used in commercial installations following ANSI standards for deflection as approved by the TCNA.

New Sonus™ XL Curve 6mm low dynamic stiffness rubber underlayment is used with 4.5mm or greater floated WPC/SPC Vinyl Flooring

Going Green with REGUPOL

REGUPOL America is committed to creating a sustainable product across the board, no matter what your installation needs may be. Built from post-consumer recycled rubber and manufactured sustainably, REGUPOL products are GreenCircle Certified and can offer LEED points to your building design. We understand that sustainability is not only about material content, which is why our manufacturing facility is in close proximity to the source of our rubber. By eliminating excessive fuel use created through transportation of resources, fossil fuel expenditures are minimized and atmospheric damage reduced. REGUPOL America remains a leader in sustainability, continuing to meet the standards of LEED and GreenCircle to promote the health of our business and the environment.


REGUPOL products can help a building earn points in many LEED certification categories. In compliance with the recent LEED v4 certification update, REGUPOL has met stricter manufacturing standards to earn points for building installations. This includes, though is not limited to, the ability to demonstrate commitment to sustainability with Environmental Product Disclosures verified by a third-party. REGUPOL America upholds these revolutionary manufacturing and design processes, which contribute to its recognition by the LEED program. At present, REGUPOL products can help buildings receive credit in a total of three different LEED categories



LEED Certifications


In compliance with the recent LEED v4 certification update, REGUPOL has met stricter manufacturing standards to earn points for building installations. At present, REGUPOL products can help buildings receive credit in a total of three different LEED categories:

Recycled Material (1-2 points)

  • To qualify, companies must guarantee that 10 to 20 percent of total material value includes post-consumer recycled content
  • REGUPOL Aktiv product lines are composed of 82 percent recycled tire rubber

Regional Material (1-2 points)

  • Companies must prove that their materials are transported 500 miles or less to complete a project
  • The REGUPOL manufacturing plant is only 500 yards from the source of its material
  • Projects within 500 miles of the manufacturing facility are in prime position to earn LEED points with REGUPOL

Minimum Acoustical Performance (Required Prerequisite)

  • In order to achieve further points in this category, companies must first meet the prerequisite as is specified by the elevated LEED v4 standards
  • Specific to school construction, this newly required prerequisite allows companies to earn more points for their installation
  • Products must comply with the requirements specified in the ANSI/ASHRAE Standard 60-2002
  • Spaces outfitted with REGUPOL Aktiv equal to and greater than 20,000 square feet have a reverberation time of 1.5 second

Enhanced Acoustical Performance (1 point)

  • Spaces designed by companies must meet the Sound Transmission Class (STC) Requirements of ANSI Standard 60-2002, achieving at least level 35
  • Specific to school construction, points earned in this category may be earned at three times the quantity available to a commercial office type setting
  • REGUPOL Aktiv allows spaces like gymnasiums to have higher STC ratings

(Pilot Credit) Acoustics (1 point)

  • The product design must meet standards of space efficiency, productivity and well-being in a high quality environment
  • Available point gain within the new categories of New Construction and Retail established by LEED v4
  • REGUPOL can help meet sound reverberation times of 2 seconds in a stadium or gymnasium