Dry rot on the flooring above the stair

[ckeysor]

Hey guys,

I recently ripped up the carpeting in my new 86 and found some moisture issues in the front and by the front door and navigation table. The chip board sub-floor near the door is rotted out and I was able to poke my finger through it. I think I am OK on repairing the section of flooring, but I was trying to figure out the cause.

I noticed they sealed up the seem between the underbelly and the plastic transition strip with expandle foam and probably took care of the problem in the front. I think the area around the front door my be an unsolved problem. I noticed that there is a gap between the stair well and the plastic underbelly that I don't remember having on my 1978 International. Do you guys have any gaps?

[doorgunner]

Chris, My 86 Excella had a similar situation. to a much lesser degree. No floor replacement needed. My problem was a leaking gasket on top of the roof where the center lights are. The water was leaking thru and running down the inside of the interior walls, then migrated to the floor and behind the stove. I'm currently resealing all my roof holes. Hope this helps Tim

[ckeysor]

Thanks, I didn't think about that as a possibility, but very likely. Which center lights and/or gasket are you referring?

[McLogger]

Originally Posted by doorgunner

Chris, My 86 Excella had a similar situation. to a much lesser degree. No floor replacement needed. My problem was a leaking gasket on top of the roof where the center lights are. The water was leaking thru and running down the inside of the interior walls, then migrated to the floor and behind the stove. I'm currently resealing all my roof holes. Hope this helps Tim

Hey, I have a much older trailer but what did you use to replace the gaskets??

[Condoluminum]

We had a leak around the edge of the "porch light" over the door on our '25, and that dripped water insode door frame and onto floor just inside the door... A little Vulkem and some work replacing the bulb with an amber version (think "bug light..") and cleaning up the frosted plastic lens and all was well.

We also had a leak around the air conditioner "gasket", which is 14" x 14" piece of black foam between the roof and the bottom of the A/C.. When it hardens and leaks, water will drip onto floor of trailer in rain or when A/C is running and condensate pools above roof level. This can also get water between inner and outer skins and then gravity will do its thing, and water will somehow make floor wet...

John McG

[doorgunner]

use the search butto to find out about sealing-Chris my rig is a little longer than yours it has had the light in the dining are replaced with a fantastic fan. That's where the leak is. As far as sealing I'm gonna wait up till I go to the Nor Cal Rally and speak with some other folks. In the marine industry we used to use a product called Dolfinite, I know this stuff works that was 20 years ago, hey any one know if it exists? going google

[ckeysor]

Thanks to all. I think that the center light is the issue and certainly easy enough to fix.