I am working on a new roof for the coal office. I have succumbed to the point of view that says, "a viewer sees more of the rooves than anything else" so I have decided an upgrade is in order. The tiles are 2mm wide which makes them 12" to scale. I have tried to make some of them slightly uneven to make it look more natural by slipping some by 0.1, 0.2 or 0.3mm. This is the effect so far: 

I still have the ridge tile, painting and a new sign to do.

If this works well then I will do some of the other buildings.