How do you fire upgrade a lath and plaster ceiling?

First, the existing lath and plaster ceiling should be fully retained with suitable reinforcing, for example, chicken wire, which should be designed and fixed in accordance with guidance from a structural engineer based on the calculated weight of the existing ceiling. This is to prevent a situation where an old ceiling falls onto the new GypCeiling lining, therefore, adding additional weight which the new system is not capable of supporting.

Once secured, one of our GypCeiling Lining or GypCeiling MF systems can be installed, ensuring that the suspension points fix through to the structural members (i.e. timber joists) within the old ceiling in accordance with the relevant systems installation guidance. You can find full specifications in the Ceilings section of the White Book Specification Selector, with a range of fire performances, here.