Today was a moment of pride- I have succeeded in making a brick roof! I was only going to take a little bit of the formwork out, but then I realized that it was all loose anyways. I pulled it out amidst a shower of dried clay bits (the plugs I used). And a cloudy morning turned into a sunny afternoon, so it was a pretty good day.
In the above photo you can see the test system for the hypocaust. Some of the prefabricated pillars are there.