It does not pretend to be technically correct) the main thing is that it looks good from a distance.

Seamless material of flat rolled waterproofing made of roofing material. It is made using a combination of textures with Tiles procedural maps.
You can flexibly change the randomness settings as you like.
Real World coordinates are used. Put a UVW map on your geometry with this check mark.

When importing the fbx file you will need to enter the Tiles card settings screenshots in the archive.

The weight of the archive is due to the 2-4k resolution textures.