While the revised standard focuses solely on sprinkler systems, it does not prohibit the use of alternative fixed firefighting systems like water mist—especially when they’re designed and installed to rigorous standards.

iCO Products, the manufacturer of our water mist fire suppression system, are an LPCB-certified manufacturer of residential fire suppression systems that provide highly effective, low-water fire suppression, designed specifically for homes and residential developments. Their systems are compliant with BS 8458:2015, the British Standard for water mist in domestic and residential occupancies.

— BS 9991: 2024

Does it affect Water Mist Use?

BS 9991:2024 provides guidance on fire safety design in residential buildings and recommends the use of sprinkler systems in specific scenarios. However, Clause 17 of the standard makes it clear:

“This British Standard does not give recommendations for any type of fixed firefighting system other than sprinklers. Guidance on the selection and key design considerations of fixed firefighting systems is given in BS 5306-0.”

This clause allows for the use of non-sprinkler systems, such as water mist, provided the relevant standards are followed—particularly BS 5306-0:2020 and BS 8458:2015.

— Compliance Pathways

Replacing Sprinklers?

To ensure a water mist system is suitable for use in place of sprinklers, follow this framework:

Testing & Certification: iCO® is proud to be a Loss Prevention Certification Board (LPCB) certified manufacturer, our high pressure water mist system has been tested by a UKAS laboratory and verified by the BSI.

— When Can I use It?

The Big Question

Q: If Approved Document B requires sprinklers, can I still use a water mist fire suppression system instead?

A: Yes. Approved Document B is guidance, not regulation. The Building Regulations allow for alternative means of compliance where equivalent performance can be demonstrated. Water mist systems from iCO®, certified to BS 8458, are a recognised and approved alternative.

— iCO Manufacturers

Made in the UK!

NPHS-UK believes in the power of British manufacturing. Our iCO fire suppression systems are designed, engineered, and manufactured in the UK, ensuring world-class quality, reliability, and innovation.

The ‘Made In Britain’ mark isn’t just a logo – it’s a symbol of trust, performance, and safety. Our UK-manufactured solutions are trusted by architects, fire safety professionals, and building control experts to protect residential buildings across the UK.

When you choose one of our iCO water mist fire suppression systems, you’re choosing not just British engineering excellence, but a manufacturer fully committed to uncompromising fire safety.

— Water Mist Fire Suppression

Best System to Protect your Home?

Whether you’re building a new home, renovating with an open-plan layout, or developing larger residential projects, our water mist fire suppression system offers the perfect blend of safety, design flexibility, and cutting-edge technology.