Extractor ventilation through old slate/tiles?

[R1 Indy]

I need to fit an extractor to a bathroom, the only option is to vent through the roof.

I know there are adapters available for normal tiles, but not sure if they will work well here.

This is the roof:

Can anyone recommend me the best option/product for venting through this type of roof?

Cheers

[R1 Indy]

Cheers, I suppose a mushroom vent on top would be fine.

Is fitting it just a case of remove current slates around where it's to go, slice a hole in the under-felt, poke tube through into the roof void, then slates back on as best as poss over the top of the aluminium sheet? Or do I need to seal it against the slates somehow?

[R1 Indy]

Cheers Van, that looks great!

I assume there is a drain at the bottom of it, for any rain water to drain out?