Non-load-bearing masonry partitions, fire safety requirements

In the production of non-load-bearing masonry partitions with fire protection requirements, special attention must be paid to the correct design of the connections, as these are usually the biggest weak point.

 

Insulation layers in the area of sliding ceiling connections, which are required, for example, for reasons of statics or sound insulation, are to be constructed in accordance with DIN 4102-4 with mineral fibres of building material class A with a melting point ≥ 1000°C and a bulk density ≥ 30 kg/m³, cavities must be filled tightly. The sliding ceiling connection of non-load-bearing masonry partition walls must be made with steel angles or profiles. In the case of a design in accordance with DIN 4102-4

 

, the wall connection of non-contiguous load-bearing partition walls is carried out

• with anchors made of stainless flat steel inserted into the bearing joint,
• with a groove in the continuous wall, to accommodate the wall adjoining on the front side,
• or with an anchor rail embedded in concrete (when connected to a concrete wall).

 

Particularly high requirements apply to partition walls that represent an internal fire wall or a wall that is permissible instead of fire walls. No combustible building materials may be passed over these walls and they must be guided without cavities at least directly under the roof cladding, e.g. under the roof tiles. In many cases, it is necessary to guide the wall up to 30 cm above the roof cladding. The exact fire protection requirements result from the respective state building code and, if necessary, supplementary special building regulations, see also lexicon article ►Inner fire wall, requirements.

Source: bauwion