ECB Classic and ECB 75 are self-adhering, sheet-applied elastomeric membranes designed for use under floor surfaces that require protection from structural movement. Even with simple butt-joint installation, NAC Crack Isolation membranes create an effective barrier between your hard-finish flooring and subfloor. When combined with NAC primer, crack isolation membranes offer world-class crack isolation and the convenience of same-day tile application.

Both products:

  • Suitable for interior residential use
  • Crack protection for up to ¼” of lateral movement
  • Performs accurately with floor warming systems
  • Meets ANSI A118.12 and A118.10
  • Same day flooring installation
  • Clean Air Gold certified