Where is the ceiling?!!? Check the Underlay Orientation from The Revit Clinic Fewer things in life are more frustrating then when you think you have all the bases covered, and yet you’ve overlooked the obvious. Here’s a real-life example: A friend of mine owned a lawn mower that would not start. So after doing a little research online (as he was not a small engine mechanic by trade), he performed some basic maintenance: cleaned fuel filter, carburetor and belts, checked the spark plug, and changed the oil. Satisfied that he did everything by the book, he put the mower back together and gave the pull-cord a yank. No dice. He tried again. Nothing. Getting frustrated, he started the tried-and-true method of kicking the mower. Still wouldn’t start. Finally, after calling the (inanimate) mower a slew of bad names and threatening the (lifeless) mower with certain harm and even permanent injury, I….umm..I mean, my friend thought, ‘Hmmm. I wonder if there’s e