Tile roofs
Here are some centurion tiles. These tiles are used on low pitch roofs, they have a water barrier to stop water driving under in more extreme weather conditions. This is the only tile that I would recommend for a low pitch for that reason. Other types of tile recommend a smaller gage but I believe this is not adequate because many low pitch roofs that I have looked at in around ten years, the felt is still rotten through water penetration.