Salvaged Roof Panels have gaps between them [Base Building]
I'm experimenting with building a maze, and I want the inside of the structure to be sealed from the outside. Part of the maze is a long stairway. The Salvaged Roof Panels have gaps between them where you can not only see the outside (which is annoying) but light also filters through. It's especially annoying during the day. The timber roof panels are shaped differently and have no gaps, so this is a problem with all other types of materials which have this shape.
It's driving me crazy. The only other solution I can think of is to build around it at the top to seal off the light, but that would take a ton of extra work and make the maze look really ugly from the outside. I thought about sloping the normal salvaged floor tile but that's impossible to properly line up, as the tiniest bit of misalignment will throw the whole thing in a different direction just 3 panels ahead. Any help would be appreciated!