I have been playing grounded for a bit now after just getting the game recently. I began building a base but have no way to craft a roof or find the blueprint. Many youtube videos show that it should be as simple as scanning the clover leaf in the resource analyzer however, that did not give me any recipe for making the roof. Maybe these videos are outdated or there is some other issue. I was just wondering how exactly one is able to build roofs in the game. Is there a part of the story I need to complete that I haven't gotten to yet? Thanks

It is part of a group of recipes you buy from BURG.L you have to access the computer in the tents or the one in the oak lab it is beside the new hand scanner.