I am looking for a safety spotter in Champaign IL Thursday 12/29 Noon to 1:30 or so. The weather will be OK to change some lights on a short building-top mast, and my usual safety second is not available. Next good weather day will likely be a good while out. Your job will be to stand on the roof and watch me work, and be there to call emergency help if things go sideways. Its a non-profit situation, so there's no pay, but I'll buy lunch and beer after. If anyone is around the area, can help out, and wants to find out how crazy I really am, PM me.
Pretty common. Non-penetrating roof mounts for antennas held in place by cinder blocks. That's a group of cellular telephone antennas. one of several sets on that roof.