Fire Alarm Installation
What Happens During a Fire Alarm Site Survey?
A fire alarm site survey is the first step in designing an effective and compliant fire alarm system. Carried out by a competent fire alarm engineer, it involves assessing the building in detail, including its layout, escape routes, occupancy and any high-risk areas to determine the most suitable fire alarm system for safety and compliance.
In this blog, we’ll explain what a fire alarm site survey is, what happens during the process, why it is essential for a safe and compliant installation, and what comes next once it’s completed.
What is a fire alarm site survey?
A fire alarm site survey is a detailed inspection of a building carried out before a fire alarm system is designed or installed. Its purpose is to understand the layout, usage and fire risks within a property so the correct system can be installed from the outset.
During the survey, a competent fire alarm engineer assesses key factors such as the building layout, room usage, escape routes, ceiling heights and occupancy levels. This information is then used to design a system that will provide effective fire safety and meet BS 5839 requirements.
In simple terms, a fire alarm site survey will ensure that the system is correctly designed before installation begins, helping to avoid issues, improve performance and ensure full compliance.
Why is a fire alarm site survey important?
Every building is different and without a proper, individual fire alarm site survey, it is not possible to determine the most suitable type, placement or level of fire alarm protection needed.
The survey helps identify key factors such as fire risks, escape routes and building layouts which ensures the system is designed in line with BS 5839 and provides adequate coverage for all areas of the building.
In short, a fire alarm site survey ensures the system is designed correctly, installed efficiently and fully compliant before installation begins.
What happens during a fire alarm site survey?
During a fire alarm site survey, a competent engineer will carry out a detailed assessment of the building to gather all the information needed to design an effective system.
1. Building assessment
The fire alarm engineer will review the overall physical layout of the property, including:
- Room sizes and floor layouts
- Ceiling heights and building structure
- Access routes within the building
This helps determine how the fire alarm system can be effectively configured and installed.
2. Escape routes and occupancy
You must consider how people move through and use the building, including:
- Primary and secondary escape routes
- Occupancy levels and building usage
- Areas requiring clear audible and visual coverage
This ensures that all escape routes are clearly identified and that the system provides sufficient warning coverage based on how it is used and occupied.
3. Risk identification
High-risk areas will be identified during a fire alarm site survey, to ensure the most appropriate protection, including:
- Kitchens and cooking areas
- Plant rooms and electrical risers
- Storage areas or high-risk operational zones
This helps ensure that higher-risk locations receive suitable levels of fire detection and protection.
4. System planning considerations
The engineer will consider the most suitable fire system design, including:
- The type of fire alarm system required (wired or wireless)
- Detector, call points and sounder positioning
- Control panel location and accessibility
This ensures the fire alarm system is designed to operate efficiently and meet compliance requirements.
5. Site information gathering
To support the final, accurate design of the fire alarm system and its full compliance, the engineer will record:
- Existing building drawings and layouts
- Any existing fire alarm systems
- Relevant building services (e.g. ventilation or electrical infrastructure)
By completing these steps, the site survey ensures the fire alarm system is correctly designed from the outset, reducing installation issues and ensuring full compliance with BS 5839.
Who carries out a fire alarm site survey?
A fire alarm site survey is carried out by a competent fire alarm engineer or fire alarm system designer with the knowledge and experience to design compliant systems in line with BS 5839. These professionals will understand how fire alarm systems operate and how different building layouts, occupancy types and risk levels affect system design.
They use this information to determine the correct system type and coverage requirements for the building. Using a competent fire alarm professional ensures the survey accurately informs the system design and supports a safe, compliant installation.
What happens after a fire alarm site survey?
Once the fire alarm site survey is completed, the information gathered is used to design a compliant and effective fire alarm system tailored to your building.
A design is then created, which usually includes:
- The type of fire alarm system needed
- Where key devices like detectors and alarms will be placed
- The location of the control panel
- Any additional fire safety recommendations
From this, a detailed quotation and design can be prepared for approval before installation begins.
Conclusion
A fire alarm system site survey is the essential first step in designing a safe and compliant fire alarm system. It ensures the building is properly assessed before any design or installation work begins, helping to prevent issues and achieve full compliance with BS 5839.
At Bolt Fire, our fire alarm installation service includes a full site survey, ensuring every system is designed correctly from the outset and installed in line with your building’s exact requirement. This helps deliver a smooth process from initial site assessment through to final commissioning.
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Get in touch today to arrange your fire alarm installation, including a professional site survey carried out by our experienced engineers.