Our RV is parked in a shed with open ends while we summer in Kentucky. Mud daubers have been a constant problem over the years. The most recent nest was attached to a blade on the Fantastic Fan in the bedroom. It jammed the fan so it wouldn't spin. I had to remove the fan to knock off the nest and wash the blades.
We have a cover on the roof over the fan, but they still fine their way between the roof and the vent cover.
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