Charlie D. wrote:
It is true about a few posts stating such. Not a lot of examples but this subject is not one of the more prolific problems. Consider all the openings on a camper. Basement doors and such are not air tight and they are just one way for air to get inside the living area of campers. The heater is under the steps going to my bedroom. If I open the basement door I can see light the the opening between the steps. The joints between walls, ceilings, closets and such are not sealed.
I absolutely agree that there are a ton of openings in the trailer, but they obviously don't cause any issues or you would see nothing but billowing roofs on virtually every trailer going down the road. But you don't.