Siderise AVC Acoustic Void Closure for Tops of Wall - 1.24m x 2.04m x 30mm

• Laminated composite of resilient foam and flexible mass barrier membrane
• Acoustic performance: 27 dB Rw (BS EN ISO 140-3:1995)
• Reaction to Fire classification: B-s2, d0 (EN 13501-1)
• Surface weight: 12 kg/m²
• Compression-fitted for secure sealing without adhesives
• Reduces airborne sound transmission through gaps and voids

• Tops of partition walls – Installed between wall head and soffit to prevent airborne noise transfer between rooms.
  
• Service risers and voids – Used to acoustically seal openings while maintaining accessibility if required.
  
• Small apertures in building structures – Fills gaps in walls, floors, or ceilings where noise breakout needs to be reduced.

What is the main application of the Siderise AVC Acoustic Void Closure?

It is used to seal gaps at the tops of walls or in other structural apertures to reduce airborne noise transfer between spaces.

How is the AVC installed?

It is compression-fitted into the void, meaning no adhesives or mechanical fixings are required.

What is its acoustic performance?

When tested to BS EN ISO 140-3:1995, the AVC achieves an airborne sound reduction of 27 dB Rw.