Automist and Building Regulations

Which layouts are suitable for Automist?



A single Automist unit was tested by BRE in an area of up to 32 square metres (2.5m ceiling height) with fire hazards up to 5m away. The spray head should be within 5m of, and in the approximate line of sight of, any possible fire hazard. Where several options exist, the more central location for the mist head is preferred. Performance data is also available for some variations of this rule, where automatic door closers can be provided. Automist is LABC registered (RD171) for loft conversions to minimise the Building Control checking and approvals process.


Technical data is available to enable construction and fire industry professionals to assess and specify Automist for a specific risk. If Automist is being used as a compensatory measure to meet building regulations or to meet fire safety law (as opposed to an elective safety add on) Automist should be specified, commissioned and signed-off by a Fire Engineer or ourselves, an Automist Accredited Installer. We are fully trained to ensure that every project is installed to a high standard and hold Plumis Certificate of Accreditation.

Together we can help you justify the use of Automist to your Building Control Officer. Certain layouts may require a custom fire engineered justification.

For more details on this service, please contact us today.




Here are some examples of how Automist can improve fire safety:


Floor flash-over avoidance after a loft conversion or open plan kitchen refurbishment:

Open plan layoutAutomist can open up opportunities and design flexibility, helping our clients reduce their costs when meeting building regulations. Technical data is provided in our Technical Information Pack to enable building control to approve Automist under the building regulations and fire industry professionals to adequately specify Automist.


The new part B allows Building Control Officers to consider alternative methods of overcoming fire precautions in dwellings where a loft conversion takes the property to 3 or more stories. One option is to install Automist on the ground floor to protect the escape route where compartmentation, such as an enclosed stairwell or fire rated doors, should be in place but is either undesirable or not possible to achieve.



Elective safety improvement for the vulnerable or high risk tenant:


Automist can be used to aid means of escape and maintain survival conditions by minimising toxic gases and heat, an ideal solution for sheltered housing and student accommodation. Automist is a hassle-free add-on which can be integrated easily during a refurbishment, ideal for promoting independent and assisted living. Door closers and/or retainers can be used to maximise Automist’s ability to limit the spread of fire throughout the building and increase the effectiveness of the water mist volume protection.


Compliance with the Regulatory Reform (Fire Safety) Order (RRFSO ) and the Housing Act. Fire Safety risk assessments are an important part of the Regulatory Reform (Fire Safety) Order and ensures that landlords consider evacuation plans for disabled people living within their buildings. Automist can protect difficult to escape premises and help people with responsibility comply with both Equality Act 2010 (which is the successor to the DDA) and the RRFSO.



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