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What fire resistance level is required for loadbearing walls in a Class 2 building over 25m?

For a Class 2 building with an effective height over 25m, loadbearing walls that are also fire walls must achieve a minimum FRL of 90/90/90.

If the building exceeds 4 storeys, Table S1C2d requires 120/120/120 for loadbearing elements forming part of an external wall.

NCC 2022, Vol 1, C2D5Table S1C2d

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