The Exit set is an indoor set that is built separately next to the Enigma building.
This can be clearly seen on the production photos of the Exterior page.
There must have been no heating, because everyone is wearing jackets in production photos and in Vivian’s documentary.
The following picture is an old one. But I wanted to show it anyway, because I’m in the process of positioning the exterior here.
When the hall is completely finished and everything has texture, I will make both a night and a day scene….. Maybe with snow.