Cavity barriers are required to prevent the spread of fire and smoke through concealed cavities within wall, floor and ceiling constructions.
This includes small cavities such as where floor slabs meet the walls of a building, and this can be achieved using materials which will allow an element of movement whilst still providing fire resistance, and other benefits such as acoustic and waterproofing.
At the other end of the spectrum, large cavities such as open loft spaces can be divided using partition walls with access doors as required, or fire rated curtaining systems such as TBA Firefly.
Cavity barrier partition installed within loft void of sheltered accomodation property for MVHA.
Video courtesy of the ASFP