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DURACOUSTIC S.T.O.P.™
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Floor Impact Noise Reduction Underlayment

  • Cost Effective
  • Reduces Impact & Airborne Floor Noise
  • For Use with Variety of Floor Finishes
  • Recycled Materials









Features & Benefits

  • Greatly reduces impact sound; rubber is the best sound absorption material
  • Increases IIC and STC ratings
  • Does not compress and therefore holds its acoustical value over time
  • Easy installation – will not slip or break down during installation
  • Conceals minor subfloor irregularities
  • Works extremely well over radiant heated floors
  • Resists mold, mildew and fungus growth

Environmentally Friendly

  • Made with 85% recycled tire rubber and is 100% recyclable
  • Low VOCs
  • Can contribute to LEED credits

Duracoustic sound control underlayment offers a simple but very effective solution for creating floor systems which meet stringent sound ratings in multiple-story dwellings, condominiums, hotels, apartments, private homes and business applications including old building conversions into condominiums.

Duracoustic is made from 85% recycled rubber. It is a reinforced rubber mat with an open cell structure which enhances its sound deadening properties making possible the installation of cost effective sound rated floors.

The Duracoustic underlayment system acts as a decoupler by breaking the sound transmission path through the floor-ceiling assembly and prevents noise flanking room to room. Testing has demonstrated outstanding sound attenuation with a variety of construction assemblies and floor coverings including ceramic tile, hardwood, laminate and engineered wood floors.

MATERIAL: Open cellular rubber bonded to fiberglass/cellulose backing scrim.
PATTERN: Flat Textured
FEATURES: Conceals floor irregularities. Resists mold, mildew and fungus growth. Designed for high traffic, long lasting floor impact noise control.
APPLICATIONS: Floor/ceiling applications requiring sound privacy. Apartments, condominiums, schools, offices, hospitals.
THICKNESS: 5/16″
SIZES: 54″ × 24′ (108 sq. ft. per roll)
WEIGHT: 65lb roll (.6 lbs./sq.ft.)
COLOR: Black
FLAMMABILITY: ASTM E-648 Radiant Panel Class 1 (FF1-70 PASS)
INSTALLATION: DAA5 or Poly 300 Adhesive

Test Results
Click Any Image for Larger View
Hardwood Floor
over Wood Assembly
Ceramic Floor
over Wood Assembly
Ceramic Tile
over a 6″ Concrete Slab
STC & IIC Test Data STC & IIC Test Data STC & IIC Test Data
STC IIC STC IIC STC IIC
64 55 70 57 55 52
Recycled Materials – Duracoustic with Ceramic Tile over a 6 inch Concrete Slab For Use with Variety of Floor Finishes – Duracoustic with Ceramic Floor over Wood Assembly Reduces Impact & Airborne Floor Noise – Duracoustic with Hardwood Floor over Wood Assembly

Airborne Sound Transmission Class (STC)
Assembly 125Hz 250Hz 500Hz 1KHz 2KHz 4KHz STC
Hardwood Floor
over Wood Assembly
42 53 70 83 92 100 64
Ceramic Floor
over Wood Assembly
49 58 67 81 91 99 70
Ceramic Tile
over a 6″ Concrete Slab
37 43 64 77 86 92 55