Passive Fire Protection / Non-Load Bearing Seals / Nullifire FJ240 Spanatherm Cavity Barrier
FJ240 Spanatherm is a strong preengineered rock fibre movement-joint fire seal, vertical fibre orientation, that allows significant movement accommodation at the same time as providing fire integrity, insulation and an effective smoke seal. FJ240 is a dense rock mineral fibre board Class A1 core with a BC0 aluminium foil applied to two faces. This provides a vapour barrier and a smoke seal when correctly sealed.
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