Watermist systems for fire protection in domestic and residential buildings DG 534
BRE (Building Research Establishment) is an independent, research-based consultancy, testing and training organisation, operating in the built environment and associated industries.
Watermist systems for fire protection in domestic and residential buildings: An introduction (DG 534) was published by BRE on 10 September 2014. It was written by Corinne Williams.
A form of watermist was first used for the protection of assets from fire in industrial applications in the 1930’s. More recently they have been used for the protection of spaces on board ships and for industrial and commercial applications. Watermist fire protection systems are now being considered for installation as fire protection measures in domestic and residential buildings in the UK. They can be considered a ’green’ alternative to automatic sprinkler systems because of their potential to reduce water consumption, although they are seen as a novel technology in the market.
Watermist fire protection systems are sensitive to small design changes and so successful implementation requires in-depth knowledge of the system and its intended application from watermist suppliers and approving bodies.
This 12 page digest provides an introduction to watermist systems in domestic and residential buildings for designers, specifiers, authorities such as building control bodies, fire safety officers and insurers, clients, developers, fire safety managers and non-specialists. It covers the general background, reasons for choosing watermist systems, current UK standards, how watermist systems work, issues to be considered during specification, design, installation and ongoing maintenance, the use of independent third-party approved suppliers, and products.
The contents of the digest include:
- Introduction.
- Description of domestic and residential watermist systems and how they work.
- Standards.
- System fire performance tests.
- Planning and specification.
- Design, installation and commissioning.
- Ongoing maintenance, system continuity and documentation.
- Alternative suppression systems.
- Use of independent third-party approved suppliers and products.
- Conclusions.
- References.
- Further information.
[edit] Related articles on Designing Buildings Wiki
- Automatic fire sprinkler systems: A good practice guide.
- BRE articles on Designing Buildings Wiki.
- BRE Buzz articles on Designing Buildings Wiki.
- BRE Buzz.
- Building Research Establishment.
- Design benefits of automatic sprinkler systems granted under approved document B.
- Evaluation of cooling effects: outdoor watermist fan.
- Fire in buildings.
- Fire protection engineering.
- Fire safety design.
- Making the case for sprinklers and dispelling myths.
- Personal protection watermist systems in the homes of vulnerable people.
- Sprinkler systems explained: A guide to sprinkler installation standards and rules.
- Sprinkler.
- The impact of automatic sprinklers on building design.
Featured articles and news
Awareness of the Carbon Border Adjustment Mechanism
What CBAM is and what to do about it.
The new towns and strategic environmental assessments
12 locations of the New Towns Taskforce reduced to 7 within the new towns draft programme and open consultation.
Buildings that changed the future of architecture. Book review.
The Sustainability Pathfinder© Handbook
Built environment agency launches free Pathfinder© tool to help businesses progress sustainability strategies.
Government outcome to the late payment consultation, ECA reacts.
IHBC 2025 Gus Astley Student Award winners
Work on the role of hewing in UK historic conservation a win for Jack Parker of Oxford Brookes University.
Future Homes Building Standards and plug-in solar
Parts F and L amendments, the availability of solar panels and industry responses.
How later living housing can help solve the housing crisis
Unlocking homes, unlocking lives.
Preparing safety case reports for HRBs under the BSA
A new practical guide to preparing structural inputs for safety cases and safety case reports published by IStructE.
Male construction workers and prostate cancer
CIOB and Prostate Cancer UK encourage awareness of prostate cancer risks, and what to do about it.
The changed R&D tax landscape for Architects
Specialist gives a recap on tax changes for Research and Development, via the ACA newsletter.
Structured product data as a competitive advantage
NBS explain why accessible product data that works across digital systems is key.
Welsh retrofit workforce assessment
Welsh Government report confirms Wales faces major electrical skills shortage, warns ECA.
A now architectural practice looks back at its concept project for a sustainable oceanic settlement 25 years on.
Copyright and Artificial Intelligence
Government report and back track on copyright opt out for AI training but no clear preferred alternative as yet.
Embedding AI tools into architectural education
Beyond the render: LMU share how student led research is shaping the future of visualisation workflows.
Why document control still fails UK construction projects
A Chartered Quantity Surveyor explains what needs to change and how.
Inspiration for a new 2026 wave of Irish construction professionals.
New planning reforms and Warm Homes Bill
Take centre stage at UK Construction Week London.

























