A general Question with regards to my new 2021 LWB Crafter.

Before I cut a hole in the roof, I thought I would throw it out for comments on the fitting of an Dometic Ibis 4 on the roof.

Not about the merits of the Unit, but about the 40 Kgs sitting up on the roof...!

Any known issues with that amount of weight on the roof of the New 2021 Crafter....?

I've surely seen the same units fitted to the latest Mercedes RV roofs.

Wondering if I might be needing a support structure as an added security..?