Of course I had to let the tree grow into and onto the roof!
Tree branches just have life of their own. (And yes, the front panel still opens up.)
Now the next picture is a bit of a failure and it is too late to go and photograph it again.
It is supposed to be showing how the three stories stack together with the new roof.
However, the top layer is actually on backwards!
You are looking at the back of the house and the front of the third story. Oh well.