Soon, but not today.
There was a mixup: the roofing instructions we were sent said put strapping up (not sheathing) on the roof. We did that.
The roofer arrived, and looked at the instructions that came with the roof, and said, wait, it says right here that this particular kind of roof has to go over sheathing, not strapping.
So, Contractor Man, being the wonderful man that he is, is in the process of solving this problem for me. He and the package company guys (who are also really good - they admitted straight up that this was their mistake, and will cover the costs of fixing the problem) have some alternatives and he'll have more info for me soon. Basically, the preferred solution is to get the *right* kind of metal from somewhere local (it exists, we know this) as that's faster and easier in the long run than getting sheathing, installing it (a 2 day job) and doing all that work.
So, yet another delay, but hey, nobody's sick, nobody's dying, the weather is warming up for the weekend, we are comfortable and well housed in our tiny cabin, and really, it's just one more small glitch in the grand scheme of things.
It's disappointing, to be sure, but hey, things happen.