Roofs 1x2 & 2x1
There is only one 2x1 roof in the game which is Tall Round Tile Roof. 2x1 roof should be common in every roof type and block. We should be able to build these types of roofs:
When roof placed in high pitch (Scandinavian type);
When roof placed in low pitch (South European Type);
There were some mods that I used but they seem abandoned time to time which makes use of mods for important part of the buildings not a good solution.