Industry News

Are you aware of the seven deadly sins?

Written by Vince Aherne, M.AIRAH AIRAH 19/01/2017
Image of an exhaust system

Save yourself and find out about fire safety in kitchen exhaust systems.

To provide industry with a one-stop-shop on compliance information for kitchen exhaust systems, AIRAH developed a free technical bulletin on the topic. Industry stakeholders, including the ABCB, helped to develop it.

The AS 1668 standards have been updated in recent years. Changes have also occurred in the regulatory approach to maintenance. The technical bulletin provides an overview on the topic of fire safety in kitchen exhaust systems. It steps through and highlights:

  • The fire hazards and risks associated with these systems.
  • An outlines of current standards and regulatory requirements.
  • Common faults and failures found in existing systems (the so-called Seven Deadly Sins).

The bulletin also goes beyond design and installation of systems, outlining current maintenance standards including various duct cleaning protocols. Some best-practice solutions for ongoing management and risk minimisation are also provided.

Does it affect you?

Kitchen exhaust systems continue to feature prominently in commercial building fire events. Fire safety within kitchen ventilation systems is not just a matter for the system designer or system installer. The actions of the facilities manager, the maintenance contractor and the system owner or operator are also critical to ensuring safe outcomes.

All stakeholders in kitchen ventilation may benefit from reviewing the bulletin. It will refresh their understanding of the special fire risks inherent in commercial kitchen hood exhaust ventilation systems and how to deal with them.

Reference to the NCC

The DTS Provisions of Part F4 in NCC 2016, Volume One requires that commercial kitchens and cooking areas are provided with kitchen local exhaust ventilation to maintain adequate air quality. This can be achieved by removing the steam, smoke and fats generated by cooking processes and by controlling odours. F4.12 requires these exhaust systems to comply with AS 1668.2 (2012). This standard details the ventilation function whilst AS/NZS 1668.1 (2015) details design precautions to address the fire hazards associated with these systems.

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