I had planned on my evening modelling session centering around the non glazed section of the station roof (seen in white on the last picture) but now I am unsure on the way forward.

Option 1. Steel sheet

Option 2. Corrugated sheet

Option 3. Slates

I was planning on option 1. but during the course of the morning I have been favouring 3.

Any thoughts or opinions , if not watch this space...

John