[bstark]

I replaced that seal under the kitchen slideout with one that hadn't been cut to prevent being caught by the rollers. I designed and installed some stainless plates to fasten to the front edge of the floor of that slideout that extended up to prevent the seal from deflecting enough to get caught by the rollers then installed the new seal over top of those plates doubling up at the ends, no more air infiltration under that slideout from then on.

Cooking using the propane (very wet fuel) will intoduce a LOT of condensation into the rig. as will showering etc., without running the exhaust vent.

You need to adopt a two pronged approach to your problem: Prevent the humidity from building up and make sure there is air circulation to every nook and cranny in your rig to prevent cold spots from forming.