Mezzanine floors are a popular way to add space in warehouses, shops, workshops and offices without moving premises. They can work very well, but they change how a building behaves in a fire. People on a mezzanine are above the main floor, often with only one way down, and the space below can hide hazards. That is why any new or existing mezzanine should be part of your fire risk assessment.
What a mezzanine can change
- Escape routes. People on the mezzanine need a safe, quick route down and out. Long travel distances or a single stairs can be a concern.
- Detection and alarm. A new floor can block existing detectors or create areas the alarm cannot reach well.
- Smoke. Smoke rises, so people on the mezzanine may be affected sooner by a fire on the floor below.
- Storage. Mezzanines are often used for stock, sometimes far more than intended, adding fuel load high in the building.
- Lighting and signage. Emergency lighting and exit signs may not have been extended to cover the new level.
Practical checks
- Escape stairs. Are they clear, well lit and leading towards a final exit? Are they kept free of stock and pallets? See keeping fire exits and escape routes clear.
- Alarm coverage. Can people on the mezzanine hear the alarm? Is there detection above and below?
- Emergency lighting and signs. Do they cover the mezzanine and its stairs? Our guide to emergency lighting explains what to look for.
- Storage limits. Keep stock tidy and within what the structure was designed for. Avoid storing flammable materials up there.
- The space underneath. Areas beneath mezzanines are often used for offices, canteens or storage. Make sure these do not become hidden fire hazards.
- Who uses it. Think about staff who may need help, and include them in your evacuation plans.
New mezzanine? Plan ahead
Adding a mezzanine is building work, so involve the right professionals at the design stage, and update your fire risk assessment once it is in use. Our post on fire safety during building work covers the period while work is going on.
Your legal duties
Under section 18(2) of the Fire Services Acts 1981 and 2003, the person in control of premises must take all reasonable measures to guard against fire and ensure people’s safety if one breaks out. Section 19 of the Safety, Health and Welfare at Work Act 2005 requires employers to identify hazards and assess the risks. A mezzanine is a significant change, so it deserves a proper look.
Talk to Safer Solutions
Our fire risk assessments cover escape routes, detection, lighting and storage across every level of your building. Call 086 275 9728, email info@safersolutions.ie or contact us for a friendly, no-obligation chat.