Fire Stopping Services

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Fire compartmentation is a legal requirement under the fire safety Order 2005 and works in conjunction with risk factors such as building construction, occupancy type, travel distances, building regulations, protecting escape routes, number of floors and protected staircases .

General overview of Fire Stopping

The Definition of Fire Stopping

A firestop is a fire protection system made of various components used to seal openings and joints in fire-resistance rated wall or floor assemblies. For penetrating cables, these can also be called Multi Cable Transits (MCTs). Firestops are designed to restore the continuous fire-resistance of wall or floor assemblies, impeding the spread of fire by filling the openings in them with fire-resistant materials.

A firestop or fire-stopping is a form of passive fire protection that is used to seal around openings and between joints in a fire-resistance-rated wall or floor assembly. Firestops are designed to maintain the fireproofing of a wall or floor assembly allowing it to impede the spread of fire and smoke.

Firestops prevent unprotected horizontal and vertical penetrations in a fire-resistance-rated wall or floor assembly from creating a route by which fire and smoke can spread that would otherwise have been fire resisting construction, e.g. where a pipe passes through a firewall.

Fire stopping is also to seal around gaps between fire resisting constructions, e.g. the linear gap between a wall and the floor above, in order for construction to form a complete barrier to fire and smoke spread.

Considerations when selecting passive Fire Protection Product

Ultimately the selection and correct installation of a fire stop can potentially save people’s lives. It is therefore a decision that should involve qualified parties to ensure effective fire stopping solutions are specified. All buildings are different, and it is important to consider, not just the product you require, but also the environment and situation into which it is being installed. Each construction situation can be different, so simply using the same firestop you have used on a previous build may not be the answer.

With the huge range of fire protection products that are now required by building regulations, it can be difficult to understand which ones you need. The simple answer is, all of them. A functional firestop system is only made when a combination of products are all working together. Without the use of one single product, the rest of the fireproofing system could fail.

General Information of Fire Stopping

Every ‘service’ passing through fire resistant building elements will react in a different way during a fire, so there is no single solution or product that will protect all services.

To ensure a wall or partition will provide the required fire performance, specifiers should consider:

  • Electrical, mechanical, and structural penetrations.
  • Unpenetrated openings (such as openings for future use).
  • Re-entries of existing firestops.
  • Control or sway joints in fire-resistance-rated wall or floor assemblies.
  • Junctions between fire-resistance-rated wall or floor assemblies.
  • Head-of-wall (HOW) joints, where non-load-bearing wall assemblies meet floor assemblies.

Services must be tested in accordance with the test methods set out in appropriate standards. Tests are carried out in accordance with the general principles of BS 476: Part 20: 1987 or BS EN 1366-3: 2004 and BS EN 1366-4: 2006.

High Quality Fire Stop Specialists

Frequently Asked Questions about Fire Stopping

Below you will find answers to commonly asked questions.

Get expert advice, this is a specialist task and the person determining these compartments will be responsible for the fire strategy. These compartments are fundamental to the correct operation of the building.

These are secure areas to stop fire spreading throughout the building particularly if the building has upper floors.

Yes either your fire risk assessor or a professional can advise on things like whether you have a continuous evacuation or stay put policy, as this has a massive impact on where your fire compartments are situated and the size of them.

Yes usually, but there are exceptions for single storey buildings and small multi storey buildings where escape travel distances can be met without any further protection, please seek professional advice to be sure.

The named ‘responsible person’ as defined under the fire safety order 2005.

We’re here to help, Monday to Friday, 9am–5pm. We aim to respond within 24 hours, although this may be longer during busy periods.

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