ACI-125™ provides unmatched, extreme-density support under today’s ceramic and porcelain tile. It helps reduce the transmission of sound associated with tile floors and protects against substrate cracks up to 1/8”.


For use under

  • Ceramic and Porcelain Tile

Also for use under

  • Luxury vinyl Tile/Plank
  • Rigid composite
  • WPC
  • Laminate
  • Engineered wood
  • Solid hardwood


  • Extreme density for unmatched support under today’s popular ceramic and porcelain tile
  • Pliable rubber composition allows movement to reduce stress transmission from the concrete slab to the tile installation to help prevent tiles from cracking
  • Protects against horizontal, in-plane, slab substrate cracks up to 1/8”
  • Helps reduce sound transference between floors and retains acoustic properties over time
  • Can be used above or below grade and installs quickly
  • For use over in-floor heating and is recommended by the Radiant Professionals Alliance as an excellent choice
  • Fresh Dimension® antimicrobial helps to inhibit the growth of mold, mildew, and odor-causing bacteria
  • Meets or exceeds the CRI Green Label Plus program for indoor air quality


Thickness: 0.051” (1.3mm)
Density: 66 lbs/ft3 or 40 oz/yd2
R-value: 0.02
Product Codes:
BM0087 BM0088
Composition: Made of High-Density Synthetic Rubber
Color: Tan
36” x 33.33’ 54” x 44.44’
100 200
11.11 22.22
Roll Weight:
28 lbs. 56 lbs.
Impact Insulation Class (IIC) (ASTM E492)*: 63
ΔIIC: 17
Sound Transmission Class (STC) (ASTM E90)*: 64
High-Performance System Crack-Resistance Test (ANSI A118.12): Passes > 1/8”
Robinson Test (ASTM C627): Rated for Residential Plus
Indoor Air Quality: CRI Green Label Plus-certified
Antimicrobial: Fresh Dimension®
Warranty: Life of the Floor
  • *When tested with floor-ceiling assembly