This is bs. I've tried this countless times. I get on the roof, as soon as i hit that roof.. It kills me. Idk how the dude did it in the video, but that roof is whats going to kill you regardless.
I think their was two hotfixes done since any time you jump off the lander at a certain height you die. At first you only died if you went up to the death barrier. I have jumped off halfway up and lived until I landed on the ground.