Once we got the framing done, we opted for Tyvek house wrap instead of aluminum flashing. I know it may need repairs in a much shorter time frame than aluminum sheathing would. But...Blake made a good point. Tyvek will make it so much easier to access the plumbing in the subfloor should anything need repairing. Cutting out the aluminum or ... even worse ... tearing out the hardwood flooring to access the subfloor for repairs would be a nightmare.
What a lovely day for a build! The next build event will be two days. Our goals: 1) install plumbing in the subfloor framing, 2) lay the plywood subfloor, and 3) frame out the walls. Yikes! That means I need to find the rest of my windows PRONTO!