[Redwiz]

Thats right, typically some roofs are done like that, however I have worked with roofs before and understand their traits.

Here is an example of a real world roof that I have previously made, they do not interlock in the way you are thinking. Interlocking them will remove the graalian charm.
Therefor im making it a priority to stick to the images as closely as possible, down to the RGB values.