Are factory roof rails noisy?

[Vendee]

I'm seriously considering buying a Puma, probably an ST Line spec car. There doesn't seem to be many stock built cars so I may end up ordering one to my specs. I was looking at the option of having roof rails fitted. They cost £200 extra. I know that roof bars whistle when fitted but I've never owned a car with just the rails fitted and I wondered if they were noisy in any way. Thanks.

[Nismex]

Had a fiesta with and without the rails and cant say I have noticed any extra noise from them, but others may notice.

[Vendee]

Thanks for that. Having thought about how often I've used my roof bars on my Fiesta over the last 5-6 years, I've decided that the money might be better spent on other more useful extras.