Isomass Acoustic Isolation and Cavity Seals

Isomass provides a range of acoustic isolation components and cavity sealing products designed to prevent flanking noise, improve sound insulation, and ensure compliance with Approved Document E of the Building Regulations. These accessories complement floor, wall, and ceiling systems by addressing weak points at junctions, fixings, and voids. Isomass Acoustic Isolation and Cavity Seals provide essential detailing solutions that complement primary acoustic systems. By addressing junctions, fixings, and voids with products such as Isocheck Expandastrip and the Isocheck Acoustic Cavity Barrier, these systems ensure continuous sound insulation performance, preventing flanking paths and maintaining compliance with building regulations.

Acoustic Isolation Products

• Isolation Strips – resilient strips placed beneath battens, joists, or partitions to break direct contact and reduce sound transfer.
• Flanking Bands – flexible acoustic barriers installed at junctions between walls, floors, and ceilings to prevent flanking transmission.
• Impacta Pads – isolation pads used beneath fixtures such as baths, kitchen units, or staircases to minimise noise transfer.
• Resilient Washers – acoustic washers for mechanical fixings, preventing vibration and sound leakage through screws and bolts.
• Sealants – specialist acoustic sealants applied at perimeters and junctions to maintain airtightness and acoustic integrity.

Cavity Seals

• Isocheck Expandastrip
  • Function: Compressible acoustic strip designed to seal gaps and cavities around partitions, raised floors, and suspended ceilings.
  • Performance: Expands to fill voids, preventing airborne noise leakage and maintaining acoustic separation.
  • Applications: Ideal for sealing junctions in lightweight partitions, ceiling voids, and raised access flooring.
• Isocheck Acoustic Cavity Barrier
  • Function: Maintains the acoustic separation potential of partition walls by treating voids above and below.
  • Composition: Semi‑rigid acoustic foam bonded to fibre‑reinforced gypsum board.
  • Performance: Prevents airborne noise transfer through ceiling and floor voids, improving privacy.
  • Applications: Suitable for raised access flooring, suspended ceilings, and partition wall junctions.

Applications

• Residential: Flats, apartments, and conversions requiring improved sound insulation.
• Commercial: Offices, schools, healthcare facilities, and public buildings.
• Specialist: Recording studios, home cinemas, and performance spaces where acoustic integrity is critical.