There is no wieght. It's only one 3/4" pipe run around the perimeter to pick up building lights. The "maint man" for the apt complex put a weather tight bell box with romex connectors, and ran uf all over.
I'd be tempted to use an idea I stole from 220/221, cut some PVC length wise into halves and tar those down and strap the run to that with one or 2 holes. That way there is no wood that will get all nasty and eventually rot out. Or use cinder blocks that works too.
I am not a big fan of the standard 4by4 with some glue slathard on it, but the prefab ones are expensive, on rooftops I usually put down a 4by4 every six feet or so with strut on the top.
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