Acoustic Underlayment

Acoustic Underlayments for resilient and hard surface floor coverings

High performance Underlayments from Regupol Acoustics featuring Sonus and SonusWave Sound Control Solutions.

Vibra-Sonic proudly represents Regupol Acoustics, a world leader in acoustics and vibration control. Their line of sustainably manufactured flooring underlayments provides highly effective sound insulation for both new construction and renovation projects. These high-performance underlayments are engineered to reduce impact noise under a wide variety of resilient and hard surface floor coverings, resulting in quieter spaces in multi-family/multi-story residential and commercial applications.

Regupol Sonus and SonusWave product lines bring lab, field-tested and proven sound-dampening results together with long-term performance and quality. Made from recycled rubber, they are GreenCircle certified and can qualify for up to 8 LEED points. The preferred choice for impact sound control among acoustic consultants, project engineers, multi-family residential developers, architects, and property management corporations worldwide.

Impact Noise Reduction Results with Confidence

With all underlayments, the Impact Isolation Class (IIC) and the Sound Transmission Class (STC) ratings are based on the complete floor-ceiling assembly. These ratings will fluctuate depending on the other components of your assembly. The best rating to reference for determining how much improvement the underlayment alone contributes to the impact noise reduction is the Delta Impact Isolation Class (ΔIIC).

Regupol has made it easy to anticipate acoustic results with their extensive library of acoustical test reports, available through their easy-to-use drop-down menu on their assembly specifier:


  • Easy Installation
  • Resilient & Durable
  • Delivers Peace & Quiet


  • Apartments
  • Condominiums
  • Dormitories
  • Classrooms
  • Schools
  • Hospitals
  • Any area where reduction of impact noise is desired

SONUS Underlayments Features & Benefits

Regupol Sonus underlayments are designed to reduce the passage of impact transmission cause by people walking and can be installed under ceramic tile & stone, carpet & carpet tile, and hardwood flooring. This green product is made from 100% post-consumer waste. Each year over 150 million tons of tires are recycled and kept from landfills.

IIC 50 to 62*
ΔIIC 20 to 27*
*depending on assembly

Sonus Product


  • Hardwood flooring – floating and nail-down
  • Ceramic tile
  • Stone
  • Carpet & carpet tile

Sheet Sizes:

SONUS LV Sound Control Underlayments Features & Benefits

Regupol Sonus LV Sound Control underlayments have been specifically engineered and manufactured to reduce the passage of impact transmission cause by people walking anc can be installed under vinyl plant (LVT), sheet vinyl, carpet & carpet tile.

IIC 50 to 55*
ΔIIC 21 to 22*
* depending on assembly

Sonus LV Product


  • Vinyl Plank (LVT)
  • Sheet vinyl
  • Carpet & carpet tile

Roll Sizes:

SONUSWAVE Underlayments Features & Benefits

Regupol SonusWave underlayments are designed to reduce the passage of impact transmission noise and can be installed under lightweight concrete or topping as well as a 2-layer plywood raft system for nail down hardwood. This product is the perfect choice for areas where weight & mass are necessary to increase the overall STC rating, while isolating the concrete topping creating a floated isolated concrete floor which will reduce impact transmission.

IIC 49 to 68*
ΔIIC 25*
*depending on assembly


  • Lightweight gypsum
  • Plywood raft
  • Engineered hardwood

Roll Sizes:

  • 6mm
  • 8mm
  • 10mm
  • 17mm
  • 25mm


Regupol Acoustics ADHESIVES

TRUESET – High performance hard set acrylic adhesive bond coat designed for wet-lay installation of Sonus with Ceramic Tile & Stone. Read more and download the Data Sheet

Trubond – Universal all-purpose adhesive designed to adhere Sonus to subfloors for hardwood and ceramic tile installations. Read more and download the Data Sheet

PU350 – One-component, low-VOC, moisture cured polyurethane adhesive for bonding Sonus to engineered hardwood. Read more and download the Data Sheet

Woodbond – 100% solids, one-component, moisture cured urethane adhesive that is designed for the installation of engineered wood flooring. Read more and download the Data Sheet


Is your project seeking LEED certification? REGUPOL products can help a building earn points in many LEED certification categories. Learn more here (


Not only are the Regupol underlayments highly effective, they are also competitively priced. From small renovation to large multi-story project, Regupol underlayments are your best choice when acoustics matter.

Regupol Accessories

ISO-Strips – Rubber strips to install on wall perimeter or under wall partitions to isolate impact noise. Available in 6mm thing by 5ft long by 4” or 6” high.

About Regupol

Regupol America LLC, American subsidiary of German-based, BSW (Berleburger Schaumstoffwerk GmbH), is a third generation company founded in 1954. Headquartered in Lebanon, PA, the inventor of recycled rubber products technology manufactures flooring, multi-purpose surfaces, acoustic underlayments, and specialty sound absorption products which can be used in a variety of applications.

The company uses over 115 million pounds of recycled rubber in the manufacturing process. More than 110 million square feet of product is sold each year, with distribution in over 100 countries. Made of 100% post-consumer tire rubber, post-industrial EPDM rubber and additional renewable resources, Regupol America uses the finest raw materials and state of the art manufacturing. The portfolio of products withstands the most intense use, ensuring outstanding performance.

Regupol America – the leader in acoustic and vibration control; brings sustainable, engineered, technology-driven products to your next construction project.

Need help with your project or have questions?