Cold flat roof - no space for ventilation...?

Hey guys,

I'm doing renovations to my old 1905 house in Holland, and I'm running into issues with our flat roof.

Basically, our roof has a terrace above. The roof already has flat windows installed, so we cannot have a warm roof.

Previously, there was plasterboard inside on the ceiling, but *no* insulation. So I guess condensation was not an issue. Plus it wasn't a 'livable' roof, so it was done on the cheap - I guess.

Here is a few pictures:




So I went with the idea of having a cold roof. My problem is that I simply cannot have ventilation. The joists run adjacent with the house. At the front side, we have the house (multiple stories) - so we can't put a vent. We also can't do a wall vent because there are big double doors going out to the terrace.

At the other end, at the end of the house, is the neighbours house. This time it is also only 1 story, so we have the option of having some kind of vent on top of the roof - but is that an option? I've only seen vents on the wall, between the joists.

Is it possible to do this another way? perhaps having some kind of device that circulates air? :/ Or perhaps vents on the actual flat roof?

Any help would be appreciated. I'm stuck.

 

And here is a picture of the terrace/roof, looking from my house.

 

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