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nklloyd's avatar
nklloyd
Explorer
Sep 02, 2014

Using lexan as roof over cab

Hello,

I recently bought my first RV, a 1992 Damon Hornet 20'. Before this we had only been tent camping so I'm completely new to the whole RV experience. We knew when we bought it that there was a leak in the ceiling over the cab but we did not know how extensive it was. It turns out all of the plywood over that area is rotted and needs to be replaced. I was thinking of replacing it with a sheet of lexan over the cab that would make us feel like we were sleeping outside under the stars. The lexan would go until the next sheet of plywood that isn't rotted towards the back and to the metal part at the front of the cab. Has anyone ever tried anything like this? Can you think of reasons why it absolutely wouldn't work? We are pretty handy and are not scared of taking on big projects.

Thanks,
Kristen
  • Thanks for the advice everyone! Maybe I could make a blackout curtain that would cover it during the day if it's too hot? I'm not planning on using the camper during the winter so will the condensation matter/exist if the camper is covered up?
  • I read of someone who used a "Nose Cone" to replace a 5' x 6' section of his cabover roof. It added about 14" to the height of the cabover section. The Nose Cone is a fiberglass air deflector for big rigs.
  • I had a glass top Ford from the 50's....a '55 I think. This car was miserable to drive in the summer sun.
  • ePlastics has Lexan in shades of tint (gray, smoked, etc.) This might be an idea to help keep the vehicle from turning into a greenhouse.

    For winter, it will condense... unless you can use 3M Indoor Window Insulator or some other film that tapes around the side of the window, then shrinks into place with a hair dryer. Maybe there is a way to add dessicant in that space to minimize the amount of humidity as well.
  • I bought some Lexan to make safety guards for some machine tools in my lab 20+ years ago. The price was pretty darn steep. No idea what whole sheets go for now. I agree with Buck, too. It'd be a sweat aquarium in the summer daytime, not to mention a freezer-locker in the winter, complete with frozen condensation.

    Jim, "You can tell it's gonna be a bad day when you wake up face-down on the pavement."
  • I just can't imagine how ungodly hot it will be in your rig with all that sunshine coming through.