So, I'm going on a trip next week and a roof box would be kinda usefull...

With all the repairs im having done on warranty at audi, I wonder if I should even be thinking about it, but I'm thinking about fitting roof rails!

How would this affect any future warranty claims, for instance if the defects come back within the 1 year, or thereafter due to the fitting of the rails? How likely is it that fitting rails would speed up the deterioration process on the roof?

Also part numbers for rails maybe usefull,

Thanks in advance