This is our 2nd year of caravanning and with a 10 year old Lunar I'm no stranger to the odd issue. This weekend after rain, we found water was dripping down the air vent above the microwave then out via the corner of the wood trim. The air vent is a small mushroom type on the roof though with no access to the seal. Removing the microwave to check the leak it looked as though the water was actually dripping down the inside of the vent rather than leaking around a seal. It wasn't windy or heavy rain but the was a slight bit of pooling on the roof. Any one had water tracking up the outside of a vent then down it before?