That's great, I was going to ask whether you were any good with cutting etc/ diy in general, looks like you are, well done, look forward to the finish.
I'd consider myself "DIY capable, but ambitious"
The roof rubber is a good idea but got that stuff pretty cheap.
Now it's in place you can see why I needed specific dimensions.
I need to be able to get my bike past, and the doors open fully. Full distance is 165cm at the shortest place so I was literally taking the roofing felt into my calculations!
Now I just need to sort out how I'm going to make the lock work!
I think I'm also going to leave it on the posts I used to move it - planning on getting the side of the house paved but this storage was actually the priority as we have no outside storage at all at the moment so doing rooms inside was like playing chess, moving everything around all the time.