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Sealing agains fire spread

lyledunn


This is only a minor example of a serious number of poor sealing arrangements in a recent installation for which the EIC is dated 2023. This is above the ceiling to one of the landings to the main stairs with electrical services passing directly into a room with relatively high fire risk. If it was only one infringement, it would be bad enough, but this is evident at many places throughout the building. It is a disgrace that it was missed or overlooked by the contractor but quite unbelievable that it wasn’t picked up by BC or any of the design team who were on site during the build!

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    Hello Lyledunn. Regarding the accountability for the missing fire barrier penetration, in my opinion it is imperative to identify the responsible party. In case of a renovation with a principal building contractor, I personally would have expected that they would have employed a team of experts to ensure that all penetrations through fire barriers are sealed. However, if the hole was made after the renovation, it becomes the installer’s responsibility to seal it to the best of their ability and then seek professional assistance in sealing it completely.

  • 0 in reply to AMK

    What is the impact of installing dry lining boxes in fire-resistant partitions? Is it necessary to apply intumescent pads to the boxes if the compartment/room has a fire door?

  • 0 in reply to AMK

    Hi AMK, it’s not necessarily just the door that needs to be accounted for, but the wall construction and rating, on new builds this should be highlighted on the fire strategy. A good example of this is student accommodation, two student rooms may have fire rated doors (to enter the compartment), but have no fire rated wall construction inbetween them, as they are defined as a compartment together and therefore Intumescent pads aren’t required for this particular partition.

    Another consideration is often noise transfer as per the projects acousticians report, and acoustic pads assist with this, these can be fire rated also. 

    Beama have a guide on this

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  • 0 in reply to AMK

    Hi AMK, it’s not necessarily just the door that needs to be accounted for, but the wall construction and rating, on new builds this should be highlighted on the fire strategy. A good example of this is student accommodation, two student rooms may have fire rated doors (to enter the compartment), but have no fire rated wall construction inbetween them, as they are defined as a compartment together and therefore Intumescent pads aren’t required for this particular partition.

    Another consideration is often noise transfer as per the projects acousticians report, and acoustic pads assist with this, these can be fire rated also. 

    Beama have a guide on this

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