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Monarfloor Tranquilt System

The Monarfloor Tranquilt system reduces impact and flanking transmission within pre-cast and in-situ concrete floors in new build and refurbishment projects, by forming an isolation layer between the sub-floor and the finished screed.

Features and benefits:

  • A composite system comprising a layer of LRAC foam sealed both sides with a polyethylene membrane.
  • A one part system laid without the requirement for flanking, jointing strips or corners.
  • Designed for use with traditional sand/ cement and proprietary screeds without the need for additional polythene or waterproofing membranes.
  • When installed as part of a complete sound reduction system, Tranquilt enables a concrete floor to meet the sound transmission regulations of Part E.
  • For applications that are to be pre-completion sound tested, Tranquilt provides a quick and easy route to up to 4 cost-neutral Sustainable Home Credits.


  • DnT,w (Part H): >52 dB.
  • DnT,w + Ctr (Part E): ≥45 dB.
  • L,nt,w (Part E): ≤62 dB.
  • L,nt,w (Part E): <61 dB.
  • Roll weight: 17.5 kg.

General information

Roll: 20 000 x 1500 x 10 mm

Uniclass 2015
Pr_35_93_13_80 Sound attenuator infill unitsPrimary

K11/275 Acoustic separating floor system

K11/295 Floating floor system

K20/150 Battened timber board floating floor

K20/20 Battened timber board floating floor

Specification data - Sound attenuator infill units
Product Reference

Monarfloor Tranquilt System

Monarfloor acoustic adhesive


Standard product features


Roll: 20 000 x 1500 x 10 mm.

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