Mega dislike when its wet outside and somehow it condensates and makes the parking garage wet. What are the physics behind this...
Sometimes it's the concrete itself... I live down the street from a university that used to provide a fair amount of shelter from the rain... smooth, rhythmical brick surface, just a perfect spot for shitty weather. Last year they replaced the brick with a poured concrete, then painted over that with the school logo... now the whole union sweats if there's any temperature shift, and the whole thing is slick like waxed ice. Fucking sucks. I think the school's going to redo it because it's a such a safety hazard. You can run, stop and just slide forever on it. Still don't know why they changed it... brick is perfect.