Z Scale - Coal Loading Facility, Corrugated Roof Panels. Go to:
https://www.shapeways.com/product/QUE7YVXCK/z-scale-coal-loading-facility?optionId=326441399&li=shops to order the Coal Loading Facility Structure.
These panels fit the structure if you want to have a corrugated roof.
Not intended for children 14 years of age or younger.