I am seeking information on repairing a leaking Fan-Tastic vent ceiling fan in a caravan.
It began leaking in wet weather over the past month. I've not attempted to get on the roof to see if there is anything loose. That to my mind is a job for the experts with the correct equipment.
Reading on the internet it would appear that it needs a new sealing ring and to be re-caulked.
Some of the advice i have read includes.
* I'd recommend replacing the factory silicone sealant on and around the vent with RV roof acrylic sealant available at most RV stores... you shouldn't have to remove the vent or the existing gasket to do that.
* The manufacturer recommends (and uses) Dicor Lap Sealant 501 LSW. It's a self-leveling lap sealant.
* installing roof vents and skylights. Whether it is a membrane surface,
fiberglass or metal roof the same method works great.
-Clean the surfaces with denatured alcohol.
-Mount the vent using butyl tape and screws. Make sure the tape is soft and plenty oozes out to trim off.
-Last and most important, use Dicor lap sealant self leveling caulk on all edges and up on vent flange lapping over onto the screw heads.
I have been using this method for years and have never had any leakage
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