10-01-2012, 03:38 PM
I have added residential refers to many coaches. I leave the roof vent and side access intact. I do, however, insulate around the perimiter to keep the air from outside migrating inside with the negative pressure we have going down the road. I have just installed the smaller 9.7 cu ft models, but the principles are basically the same.
Ernie Ekberg
Bluebird Wanderlodge