Old house exterior

While I'm finishing up the abandoned interior, I thought I'd post some progress from another set I had started and will be finishing up after. This piece I found is the exterior to an old house.

I wanted to keep the geo fairly simple. This is the initial block. My plan is to let the materials and maps do most of the heavy lifting. 

I started with the painted/weathered ceiling boards to plan out how I would go about doing this. Here are some caps of the results. 

And here is what the substance mapping looks like: 

I wanted something that would give me a lot of freedom while in the engine (in this case Unreal) to be able to adjust any value as needed to make sure I could accurately represent the source material. In this case, all of the sectioned off values in the map have called out values that allow me to adjust everything from the amount of wear and paint to the direction of all of that weathering and extra dirt. It also allows for scaling, however it shouldn't be needed. It is nice to have the option, though.