For load-bearing sound-insulating ceiling components in residential and commercial construction, the LIGNO-Rippe-x type is normally used. It can be used equally well in solid timber, timber frame or skeleton structures, but also in hybrid designs combined with concrete, masonry or steel. With height steps up to 290 mm, typical continuous beam span widths of maximum 6 m are feasible (load-dependent).
Particularly in commercial construction, large column-free ceiling span widths are often necessary. For example, classrooms typically have a width of 8 m, and even larger span widths are often desirable over halls or open-space offices. The challenge with timber is then the serviceability: Excessive bending, unfavourable natural frequencies and the resulting vibration tendency must be limited with suitable flexural rigidity.
