Minecraft Xbox 360 players have been asking for a way to build roofs on their worlds for some time now. So, here is how you can do it! First, you will need to find a piece of obsidian that is at least two blocks wide and one block high. Place the obsidian in the center of your desired roof area and use a pickaxe to break it into smaller pieces. Next, use your hands to shape the pieces into a roof. Be sure to make sure that the edges are smooth so that water doesn’t get trapped inside. Once you’ve finished shaping the roof, use a block of wood or another material to seal the edges together. ..