walking on roof

All, I have just ordered this garden shed (8 x 6 pent roof) https://www.robertdyas.co.uk/power-pent-garden-shed-8-x-6 Build instructions (this looks like the 8x6) https://www.youtube.com/watch?v=xmrGxf3Gh8k 1 Short side will only be about 5 inches from a wall 1 long side (tall side of the...