45Ricochet
North Idaho
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Joined: 09/04/2009
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tsetsaf wrote:I used that expanding foam insulation sold at Home Depot in the aerosal can to fill the gaps. Once dry you can trim it with a knife and it does not permanently stick to the underbelly material allowing for easy access.
X2 I used the same stuff (great stuff brand) and it's helped. I think the only way to keep the mice out 100% is the good ole cat.
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ScottG
Bothell Wa.
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Our TT is built the same way. I lowered the coroplast to facilitate another project and found lots of evidence the little buggers had been in there. I also found that there were gaps at the corners of the coroplast big enough for me to get my fist through. I used max. expanding foam (Black can) and sealed them all up but I found lots of little holes to seal so you really have to look it over under there. It seems to have worked - no more mice in 7 years.
Scott, Grace and Wesly
2003 Dodge 3500 4x4, 6 speed Cummins (lightly bombed),
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SoCalDesertRider
SanDiego, CA, USA
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I think the mice will just chew the foam and take it to their nest. They love to chew the insulation out walls, under hoods, next to firewalls, blankets around batteries, foam cushions, matresses, etc. Anything that's even remotely edible or chewable is within their ability to destroy and create and entry hole for themselves to pass through.
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SDcampowneroperator
South Dakota
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Joined: 01/25/2011
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Steel Wool, Aluminum tape. They won't chew through metal. Would you?
Yes we have had problems with the critters.
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mr. ed
Madison, SD (but usually elsewhere)
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Joined: 02/06/2002
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I had this problem while encamped in the mountains of eastern TN a few years ago. The underbelly was not the problem but I noticed where the rams for the slides went into the fiver there were large enough gaps to allow mice to enter. Now, whenever in suspected rodent country I stuff rags into these spaces. This seems to work well. I just have to remember to remove the rags before retracting the slides (now I'm thinking steel wool may be a better choice)....
Mr. Ed (fulltiming since 1987)
2007 Hitchhiker II LS Model 29.5 LKTG
2007 Dodge Ram 3500/6.7 CTD/QC/4X4/SB/SRW/6-speed man/Big Horn edition
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sknight603
New England
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WyoTraveler wrote:I have the enclosed thermal underbody of the plastic insulation on my new Jayco Jayflight 19RD. I had field mice in my TT already. I crawled under the trailer and looked at the factory installed undercover. They didn't need to chew holes. There were gaps large enough for a cat to crawl through. There were two main areas above the front stabilizer jacks where it would have been difficult to attach it to the under body so they didn't. I pre-fabbed some metal brackets for both sides under those jacks and sealed everything off. No more mice yet. If that doesn't work I will use some sheet metal under the TT. Maybe 16 or 18 ga so it isn't too heavy.
Can you tell me how you got them out of the trailer, before you sealed it up?
________________________________
2010 Chevy Silverado LTZ CrewCab
2012 Jayco 314BDS
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Duke-44
Wyoming Rockies
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My adult son had a mouse run across his face one night in a past trailer I owned.
I have used steel wool to fill the gaps, but I actually watched the mice stick their nose in it and push right through it. So there goes that theory!
I have used the expanding foam to fill the holes to keep mice out and to keep the dust out when driving on gravel/dirt roads.
The best thing for rodents I have found is to put MOTH BALLS around the tires, jacks or anything touching the ground. I put the balls out when I park it anywhere where I think there may be rodents. When I leave, I use a glove to pick them back up and put in a container for reuse. I have not had any problem since.
I stored the rv in a storage unit this winter that I saw signs of mice. So I put the MOTH BALLS all around the outside. There were mice trails around and under the trailer but none near the tires or jacks and no mice in the trailer this spring.
I never bait rodents. Bait (Decon or the like) just draws them to your unit.
Offence is the best defence!!!!
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Happy Prospector
The Great Sonora Desert
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Joined: 01/01/2009
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The bottom of my trailer is sealed with the coroplast and they have not chewed through that, but where they were getting in was in the holes, cut in the trailer frame, where the slideout rods go through. I got some 1/8" hardware cloth, cut it to fit around the rods and cover the holes in the frame and suck it to the side of the frame with silicon adhesive. It has worked good for 4 years.
Kevin
Kevin
Retired, Fulltime RV'er
1999.5 F350 4X4 CC Diesel Flatbed
2007 Alpenlite Defender Toyhauler
2007 Yamaha Grizzly 700 (Green-It's your Daddy)
One Tough Kitty Named Bob
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Too Young to Retire
Sun Diego
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Joined: 08/22/2011
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tsetsaf wrote:I used that expanding foam insulation sold at Home Depot in the aerosal can to fill the gaps. Once dry you can trim it with a knife and it does not permanently stick to the underbelly material allowing for easy access.
I did that, and the rats and mice think it's desert. The foam doesn't even slow them down. I tried the moth ball thing too, that didn't work.They ate the moth balls. I had my old TT parked next to our avocado grove. The rats and mice set up camp and had a good ol time. I had to remove all of the fabric from the underbelly and clean and sanitize it. I ended up with 6 trash bags full of rodent excrement. They also made their way into the TT. So I also had to clean and sanitize every nook and cranny inside. Oh, and deodorize. It smelled so bad. I then replaced the fabric on the underbelly and sold the TT for about 50% of market value. It sold the first day the ad came out. With the new fiver I'm watching very closely, and so far no intrusions.
Chevy 3500HD Crewcab, SB, Diesel pulling a 36' Cameo
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Duke-44
Wyoming Rockies
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wrote: I tried the moth ball thing too, that didn't work.They ate the moth balls. .
I really doubt they ate the moth balls. Moth balls will evaporate with high humidity or high moisture. That is probably what happened to yours. So they do have to be replaced regularly. No animal, mouse or rat, will bite or eat one even if they are starved.
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