To get the holes to line up from panel to panel, we set our pattern using pencil lines. All of the 18-footers had to be drilled with one pattern, and the 10'6" panels with another pattern.

Any scratches we spotted on the panels while they were still on the ground got some touchup paint to prevent rusting. A few scratches had to be covered up on the roof since they were made after the panels were in the air.

LouElla uses an air nozzle to clean off the metal shavings from the drilled holes.

Back to drilling on the next set of panels. We stuck to our set of no more than 6 panels drilled at a time.

Later, Jillena took over on drilling. Notice all the beaded water on the panel from the overnight dew.

A bug's view as Jillena drills another hole.

This panel is an "upper" - distinguished by the particular pencil pattern starting 2" from the bottom. All of the "lower" panels begin their screw pattern 5" up from the bottom.

Light reflecting off the many facets of the rib pattern as Jillena continues drilling.

All finished. Bring on the next set!

Outside, Paul, Aaron, and Jeff are stapling the underlayment down.

Once all the underlayment was down, Paul and Jeff set their 6-8-10 triangle to get a square line for the first row of panels. Here's a tape measure's view.

From the ground, you can see the triangle better.

As the panels sets were drilled, each one was cleaned off and individually moved outside where they were stacked in the order we'd be installing them.

One stack is ready to go. The other one will go on top of the pallet in the foreground.

The end of a long day. Panels are ready to go up tomorrow.

As we packed up, a full, orange moon rose over the treeline.