FWPA Building Innovations

The SoundBar System

The SoundBar system is an acoustic floor system made up of three components:

  1. Finforest I-joists (FinnJoist) for the structural load-bearing part of the system.
  2. Finnforest SoundBar board on top, which acts as a sound-deadening material, minimising transfer between floors.
  3. Gyvlon (by Lafarge) pumpable screed placed on top of the board. The screed is self levelling, quick drying and gives the floor a smooth finish.

The system provides similar noise performance to a solid concrete floor.


Improved acoustic performance for timber construction, with potentially reduced building time relative to other sound resistant construction.


The I-joist cannot be used in high humidity/exposed weather. The screed weight will add load to the timber structure and so structural members may need to re-sized to handle the increased load. Introduction of a wet trade via the use of a self levelling compound is potentially a drawback as is the potential need for extra supervision and procurement of specialist subcontracting services that do not currently exist in the market.


The system adds in the order of 75mm onto the finished floor height and so this would need to be taken into account in the overall design.




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About FWPA

Forest and Wood Products Australia Limited (FWPA), a not for profit company, is the Australian forestry and wood  products industry’s service provider, investing in research and development, and providing research results and generic promotions to the Australoian industry. FWPA aims to improve the competitiveness and sustainability of the Australian forest and wood products industry through innovation, investment in effective and relevant R&D and communication of the results to stakeholders. Read more about FWPA at www.fwpa.com.au

Contact FWPA

Forest and Wood Products Australia
Level 11, 10-16 Queen Street
Melbourne VIC 3000 Australia

Phone: +61 3 9927 3200
Fax: +61 3 9927 3288
Email: info@fwpa.com.au