ᐅ Seal OSB boards together on the ceiling using tape.

Hello,
I have installed OSB boards as a vapor barrier screwed under the roof beams and want to seal them together upwards.
Which tape would you recommend?

I have selected two options:
Siga Rissan and Isover Vario KB. Has anyone had experience with these and can recommend one? Thanks

For OSB boards, I would recommend using ISOVER MultiTape – it is easier to work with regarding the substrate compared to KB 1. Otherwise, you might need to apply a primer beforehand. OSB boards have low energy efficiency, so not everything adheres well to them...