Product description



  • Very flexible, easily cut and shaped on site
  • Ideal for remedial treatment after installation of fire stops
  • Accommodates façade movement
  • Deforms to contours
  • Available in strip or sheet form for site cutting


SIDERISE acoustic barrier overlay for facades consist of a flexible acoustic composite for use as a mass overlay within curtain walling to form a high performance sound barrier.

The product provides a simple solution to the problem of improving 'floor-to-floor' acoustic performance when used in conjunction with SIDERISE perimeter barriers & firestops for curtain walling.

Note: This product was previously known as Lamatherm CW-AB acoustic barrier overlay.