Review on Efficient Camco RV Roof Vent Cover: Optimal Air Ventilation for Your RV, Rain or Shine by Tim Surridge

I used this (and similar ones) over my Fantastic Roof Fan on the last RVs I owned. I can't tell you how important it is to leave the roof vent open when you leave your rig - not knowing if it's going to rain while you're away. Especially if you like camping in the south west where it can be bumpy but suddenly it rains and you can be outside. We have a fantastic thermostatic fan that kicks in when our RV gets too hot and leave the roof vent wide open under one of these covers. Definitely should be! This is my first time buying this particular cover but I chose it because it seems that the screen on top of the fan is MUCH easier to clean as the roof is complete on this version unlike most designs is removable. Good idea!