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Compartmentation Survey

Fire Immunity provides custom surveys and reports tailored to suit each client’s unique situation and priority.

In addition to our extensive experience across various industries, we specialize in providing occupied building inspections to provide our clients with all the information required to make informed decisions regarding passive fire safety. Under Article 17 of the Regulatory Reform (Fire Safety) Order 2005, a regular planned preventative maintenance programme for completed work is recommended as part of the requirement to maintain fire safety provisions.

Fire Immunity provides custom surveys and reports tailored to suit each client’s unique situation and priority.

The Importance of a Compartmentation Survey


Fire compartmentation minimizes fire damage before the fire brigade arrives by effectively preventing fire from spreading throughout your building.

A fire compartment in a building acts as a barrier to smoke, heat, and toxic gases, thereby limiting its spread. In this way, the fire is effectively contained in its origin area, providing protection to the occupants of the building.

Considering how important compartmentation is as part of your overall fire strategy, it’s essential that both fire-resisting walls and fire doors be installed correctly by expert teams who appreciate the importance of effective product installation.

What happens during a compartmenation survey?


As part of the visual inspection we conduct within your building, our teams will examine all compartment lines to determine their likely performance in an emergency. There can be many types of defects in compartmentation lines, and identifying them requires expertise.

One example of a defect is: simple penetrations, such as pipework entering or exiting a compartment without gaps, or inadequate firestopping that may let smoke or fire pass from one compartment to the next.

Among other defects are cabling, voids, ducts or linear gaps between compartment lines where the compartment is not completely enclosed. Generally speaking, when issues like these are identified it is due to the original build or imposed by subsequent works. This further expresses the need to have regular inspections.

Fire Immunity are one of the leading providers of fire protection compounds in Bristol and the South West

Our Services includes:

Bristol & Surrounding South West Area

    Frequently Asked Questions - Compartmentation Surveys

    Compartmentation surveys are a proactive step to protect building occupants and minimise fire damage. By checking the barriers through fire-resistant walls, and floors, you prevent smoke or fire from spreading within a building.

    Yes, fire compartmentation is a legal requirement in the UK under the Building Regulations and the Regulatory Reform (Fire Safety) Order 2005. It ensures the safety of occupants and helps prevent the rapid spread of fire.

    A fire compartmentation survey should be conducted by a qualified and competent person who knows about fire safety, building construction, and fire-stopping installation methods and materials. Our staff are experienced in assessing and evaluating the effectiveness of compartmentation systems.

    The failure of fire compartmentation measures includes damage to fire doors and incomplete fire stopping after construction or repairs. It can also be caused by poor workmanship and the use of incorrect materials that do not meet the required fire resistance standards.

    A fire compartmentation survey involves reviewing the building’s fire strategy or fire plan drawings. We then inspect the condition of fire-resisting construction, examine fire doors, and assess the fire-stopping installation. Finally, we evaluate passive and active fire protection installations such as fire dampers or shutters.

    The purpose of a fire compartmentation survey is to assess and ensure that the building’s compartments are effectively constructed. We also check that they are maintained, and capable of preventing smoke or fire from spreading throughout the building.

    Intrusive surveys are not common in fire compartmentation assessments unless we are concerned about structural issues. In those cases, we open elements within the building’s construction for closer inspection and evaluation. Alternatively, we gain access to voids or cavities by drilling small holes.

    Fire doors play a crucial role in fire compartmentation as they act as barriers against smoke or fire making their way through a building. They are specifically designed and installed to resist fire for a specified duration. Thus allowing occupants to evacuate safely and providing additional time for the fire services to respond.

    We have found that defects in compartmentation lines can include inadequate fire stopping. Simple penetrations such as pipes or cables entering or exiting compartments are not properly sealed. There may also be gaps or voids between compartments. Improper enclosures may also compromise the integrity of the compartments.

    During a compartmentation survey, we often come across damaged or poorly maintained fire doors. There may also be partial fire stopping, compromised construction elements, and a lack of proper compartmentation in high-risk areas. Often there are insufficient seals or gaps in compartments, and non-compliance with fire safety regulations or standards.