Great read. sounds like quite a project. I have to ask though Alan, can you explain 'tin-pest'?
I built a Christmas display for a building owner a few years a ago and it required guy wires to hold a frame to a rooftop. I used #14 STR stripped the ends, wrapped them around an eyelet, fluxed and soldered. I used regular plumbing solder, not sure of the %'s though. Now I'm wondering if this was a bad idea because Christmas season is well below 55 F.
