Mezzanine floors are constructed from steel columns, steel beams, purlins, and a chipboard deck. Left unprotected these materials offer no fire resistance and in the event of a fire the structure would potentially collapse.
Depending on the use of your mezzanine floor, it may be necessary to add protection to your mezzanine floor by means of a suspended ceiling, column cases and fascia to the exposed edges of the mezzanine floor. These components when combined will provide 60 minutes fire protection to the structure.
Typical scenarios where fire protection is required are;
- If the mezzanine floor exceeds 50% of the footprint of your building
- If the floor exceeds more than 20 metres in length
- If the floor will have operatives working permanently below or above the floor
- If the intention of the floor is for office accommodation
- If the floor exceeds 400 square metres
Mezzanine floors that are solely used for storage purposes, that are under 20 metres in length and are under 50% of the warehouse footprint would not need fire protection.