The timber beams represent a statically active constituent of the TCC ceiling and must therefore have full supporting capacity throughout, i.e. not just during construction. If there is any doubt, an Expert Timber Protection Report is essential.
Downloading the free-of charge TCC Fibula.
Rotten beam head
Humidity, fungi and insects
If there is the possibility of damage to the old timbered ceiling beams, the old floor construction should be removed first. Especially the beam ends (where they are supported on the exterior wall) must be carefully checked for any possible damage to the timber.
Depending on any identified damage, a Timber Protection Report should be commissioned; this should describe and record details of any damage and stipulate rehabilitation measures.
We will be able to refer you to inspection specialists in virtually any part of Germany.