The door is difficult to open, and as soon as it does, it’s wrenched out of your hand by the force of the wind. If the weather at ground level is difficult to cope with, it’s genuinely terrible up here where it’s very exposed. Through the open door you can see the metal box of the ventilation system, and the hints of a water tank.
There doesn’t seem to be any railings or fence around the edge of roof, just a low, knee-height parapet. In normal conditions, you’d probably be happy to take a longer look, but these aren’t normal conditions.