QT Sound Insulation


QTscu is engineered for use directly under most floor finishes, yielding exceptional impact sound insulation results, even under hard surface flooring for concrete or wood-framed construction. QTscu can be installed under most types of grouted, glued, and floating floors, including hard tile, hardwood, engineered wood, laminate, and LV


  • Applicable for a wide range of flooring types(tile, wood, laminate, LVT, carpet)

  • Vapor barrier option available

  • Crack isolation membrane (ANSI A118.12) protects ceramic, porcelain and stone tile from substrate crack

  • Commercially rated by the Tile Council of North America

  • Can contribute toward earning up to 9 LEED points

  • Supported by over 550 independent lab/field test and a team of acoustical engineers

  • Superior long-term acoustical performance-will not degrade over time


QT Sound Insulation

QSTCU Ecore Sound Insulation-12mm 

  • 12mm (1/2”); 48” x 15 LF

  • Sheet weight: 2lb/ft2

  • Standard Tolerances: Width: +1/2” – ¼”; Length: +1% -0”; Thickness: ±0.4mm

QTSCU Ecore Sound Insulation-5mm

  • 5mm (1/4”); 48” x 30 LF (120 SQ.FT)

  • 0.8 lb/ft2

  • Standard Tolerances: Width: ±1/2” – ¼”, Length: + 1% - 0”, Thickness: ±0.4mm

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