Construction phase 3 ... when reinforcing the roof, make sure that 1.5 cm remain free for the tabs on the walls ...
... now put on the roof, it fits perfectly, glue on the ridge tiles ... between the two sides of the shutters
I glued another box with a thickness of 0.2 mm ...
... a spacer is glued on the back ... so that the shutters protrude slightly from the wall
Sincerely
Kurt