I do Facility Maint, and have 2 crews up on "swing-stage" scaffold, sealing and painting a 12 story building this week..... it is real hot on that wall. Right now I am on the ground working, and bouncening between oither jobsites.... so I get out of the heat once in a while when I can.

No a/c ion the work truck
At 3:30 today
The relative hygro said 50%
Temp is 98*
Barometer is 29.2