Morning update:
Big Red, the crane that used to patrol outside the western end of the building, has left the building. The last pieces were just driven away (might be a couple left out of sight). Thanks BR, it was good to know you.
Now that the steel for the hard shell is complete, the focus is changing to getting that layer one of corrugated steel and grey tarp up.
The crews have made great progress towards this. The west is all done and is even all done with the insulation and final white layer (let's call this layer two for brevity's sake). The north looks to be all done with layer one and I am assuming a crew is steadily advancing the installation of layer two to the east.
The east has the layer one cover completely in place as well, leaving only the south still needing layer one. Crews are working in both directions to close the gap and complete this. Today is Wednesday. My guess is they will complete this late this week. Might need the weekend to get it done.
Kind of surprised they appear to only have one crew installing layer two. To date, they have struggled to do 3 sections a day (though they are getting faster as they do more of them). There are 96 sections in all. I think right now they are close to half done (can't see the north side of the roof so I am not 100% sure on this). So a crude estimate of the time required to finish is 48/3, or 16 days.
That isn't going to work. But if they have two crews doing concurrently, they can reasonably finish in 8 work days, which would make their deadline of the end of the next week. So I am hoping and expecting to see a second crew putting up layer two very soon. Hopefully today.
Another thing to watch is what is going on with the PTFE part of the roof. The last day or two, a few workers have been on the arcs, doing something. I assume they are prepping them for installation of the PTFE fabric. It looks like they might have been putting some kind of fixtures on the nubs that were welded on the outside edge (top edge) of the arcs. I assume these are the points where the fabric will be attached to the arcs.
Thinking if they are doing this now, they might be planning on starting the installation of the PTFE fabric before installation of layer two of the hard shell is complete.
Again, there are packages that have been placed on the edge of the hard shell roof in the SW corner that I am thinking hold PTFE fabric. Can't imagine they are part of the hard shell roof.
They might have just put them up there because they knew they were going to lose Big Red and wanted to get them up there before he left.
Looks like work on the cage to protect the HVAC piping is complete. No activity there for a while. They might be leaving it as is.
I am guessing that the boxes of insulation still left in the western storage area are still there because there isn't much space to store these elsewhere and that they will be moved only when they are needed elsewhere.