A drywall profile without steel –

Water damage does not immediately cause the wall structure to fail. As part of our product testing, drywall walls using SORIWA Multi profiles were constructed in such a way that the lower sections of the walls were deliberately submerged in water for several centimeters – to simulate typical damage scenarios. Once the moisture had receded, the profiles dried out, and their original dimensional stability was restored. Whether the wall needs to be repaired must be assessed on a case-by-case basis depending on the extent of the damage – just as with any other drywall system.

The SORIWA Multi Profile is classified as building material class E in accordance with DIN EN 13501-1 and is therefore approved for use in interior construction in Germany.
In tested wall constructions with double sheathing using a gypsum board (GKB) or fiber-reinforced gypsum board (GKF), fire resistance classes EI30 and EI60 according to DIN EN 13501-2 are achieved, depending on the design.

As part of the acoustic tests conducted in accordance with DIN EN ISO 717-1, the following sound reduction indices (Rw) were determined for the SORIWA Multi Profile: 44.2 dB for single-layer cladding and 52.3 dB for double-layer cladding.