One of the main drawback with panelling is that in certain circumstances you have to use plastic trims to cover the joints.
Our advice is to try and keep these to a minimum to avoid spoiling the overall look of the job with lots of white trim.
Decos have realised that this situation could be improved upon so have started introducing a range of self ashesive tapes that can be stuck to the trims. These are available in matching colours to complement their wall panelling (although not all of their ranges will be covered).
We have requested more details and will let you know when we have them.