not sure what you are asking. Its not going to be easy to build a roof onto a spiral, if that is what you are trying to do. The corner and inverse corner let you 'fold' a roof one level at a time and you can actually mix 26 and 45 degree. There is no way to make a smooth roof on a spiral, though. You will end up with folded segments.

The key thing to building that you need to learn early is that pieces clip into each other. That allows you to make say a cone roof on a round building, or even just a square roof on an oddly sized building.

with a little overlap you can get it roofed well enough to provide shelter and look good on the outside. Inside, the overlap is a little ugly, but you can hide it maybe, depending on what you really want to do here. Not spiral but simply sloped, its fine, you just follow the slope with your roof tiles.

https://steamcommunity.com/sharedfiles/filedetails/?id=2935851925