I make sure all doors and windows are closed properly. I have a NorthStar pop-up TC. Then I turn on my roof fan full blast while I'm cranking down the pop-up from inside. The fan helps to suck in the tent sides. When roof is almost down, leave the fan running, go and walk around the camper to make sure no canvas is sticking out. Go back inside, finish cranking down the roof, go back outside, with the fan still running, and close all the roof clamps. Go back in and turn off the fan. The whole procedure shouldn't take you any more than 3-5min
