Found the site from searching on an RV Mouse problem. Have a brand new, 30 foot Sierra that is permantly (in my mind) parked on family farm, in rural Ohio. It is in the middle of 300 acres, and mostly wooded where it sits. EVERYtime we leave and come back there is one (or more) dead mice in the wastebasket under the kitchen sink. We have spread moth balls, bounce sheets, and have 3 - count em three - of the electric 'so-called' repellers LOL. I need to stop em from getting in. MY first thought is they are getting in thru the various vents on the roof - climbing the water hose, or satelite cable, to get to the roof. I am thinking a nylon mesh screen (like screen door material) will keep them out. Of course that leaves the vent from the furnace that is on the side of the cvamper - any reason I should not push mesh over it ? Would like to hear thoughts on any or all of it.