They also put in a dryer vent. A box at the bottom, then a straight pipe. They cut a hole in the roof, but one truss over from the pipe. I'm ass-u-ming that they cut the hole in the wrong place, as there's a 3' piece of pipe sitting there on the floor not connected. The top of the vent pipe runs to the top of the top plate. I don't want any flex in there, as it would be a tight flex because it's a slightly sloped roof, and it would take two tight flexes to make it to the hole they cut. Dryer vents are best when a straight shot, right?