PSA: my container roof leaked 3 weeks after I welded the seams, and I'm now team sealant, fight me
Found a puddle by the door last month after a hard rain in Amarillo, traced it to a pin hole in a seam I was so proud of. Half the folks I talk to say weld it again and never touch caulk, the other half say polyurethane sealant is the only sane move on a roof that flexes in the heat. Which side are you on, and has a re-weld ever actually held for you?