Passive Fire Protection

Passive fire protection is designed to contain fire and smoke in a compartment or slow the spread of fire and smoke through a building. Passive fire protection aims to contain a fire, stopping it from spreading any further; this protects a building’s occupants and gives them the time to evacuate.

What Onyx Do

We work with the manufacturers of all types of passive fire protection, offering a unique advantage when installing and maintaining any PFP solutions. We are entirely comprehensive when performing routine and reactive maintenance on PFP, working with manufacturers to follow their stringent guidelines for preservation.

At Onyx, we believe that you should understand passive fire protection in your building. We create transparent, all-inclusive reports at the end of any project we undertake, regardless of whether it is routine or not. The reports we create inform you on the work we have undertaken so you fully understand the project we have completed.

Why Passive Fire Protection Is Needed

Passive fire protection is essential in the UK and it must meet building regulations set out by the government. Maintained passive fire protection systems are essential for ensuring that occupants of a building will be safe, even if a fire did begin.

Legislation in the UK places responsibility for installing and maintaining passive fire protection solutions of the shoulders of the owners, managers and designers. Those responsible must ensure that regular fire risk assessments take place.


Fire walls, fire barriers and fire partitions are all fire-resistant barriers that are used to prevent the spread of fire from the area that it started in. This type of passive fire protection aims to contain a fire and nullify its threat to the rest of a building by enclosing it in one space.

Fire Stopping

Fire compartments are seldom left intact, services penetrate separating elements and linear gaps are present within or in between them. These service penetrations and linear gaps form a risk of fire and smoke breaking through the compartments and have to be reinstated to the original fire rating of the separating element. Certified fire stopping solutions are designed and tested to reinstate compartment lines to their original fire ratings and should be installed by a competent person.

Structural Steel Protection

Structural steel tends to lose its load bearing capacity upon reaching its limiting temperature. Added measures of protection must be considered for load bearing elements of steel. Different options are available: boarding, spray applied protection and intumescent paint. This protection ensures steel doesn’t fail under fire conditions and retains its structural capacity for the duration required. Only tested solutions must be used to ensure compliance is met.

Fire Barriers

Designed to provide compartmentation or continue existing fire safe compartments within a building, usually above ceilings or below floors in open plan areas. Can be categorised as small and large barriers. These barriers are often forgotten, damaged or poorly maintained. Only a tested solution should be installed by a competent accredited installer to meet the requirements of fire safety regulations.

We always work to regulations and are completely honest with you about the work we do. You can rely on Onyx to ensure your building is compliant with all regulation and safe for the occupants.

Long-term contracts, ranging from one year to ten, ensure peace of mind that your buildings systems are always maintained by a professional team with the skills, accreditations and experience necessary to keep your passive fire protection solutions operating properly and safely.

BESA Building Engineering Services Association
Exova Bmtrada
Bmtrada system certification
Alcumus safe contractor
The Contractors Health and Safety Assessment Scheme