At this shop, my bay doors face south. The office and waiting room are in the middle. And the tire shop is on the west side of the building, with their 3 bay doors face west.The original roof, over my side is now covered with a metal roof. The tire shop only has the metal roof with no insulation.
During the day and especially the afternoon, it's 15 to 20 degree's hotter on the tire shop side.
My ultrasonic cleaner water temp, when its on during the day, reads about 86.Plus I have a big shop fan. So it's not too bad. But stepping out into the sun, makes me feel like a vampire.
After 3pm, it's incredible.