Originally Posted by perryg114
Since I am in the process of fixing my rear floor, I figured I would ask a question. The C-channel has gaps in it and where there is a gap there is probably water coming out that gets into the sub floor. The water could be from leaks but I expect there is a fair amount that collects in that channed from condensation.
What year is your trailer?
I know on our '56 & previously owned '64 the C-Channel would not be able to "hold water" - at all
...it isn't a continuous trough-like piece, it's got notches and pieces spliced in it to make the curves and is pieced randomly. Here's a pic of the front:
I'm going to have to look for a better close-up on my other computer - but I think you can see the vertical "snips" I am talking about in these two pics. Actually, there is a section of straight C-Channel that hadn't been installed yet missing from the second pic under the back compartment door...I know it got installed before the interior skin went back on though - but there are joints where they come together. Even if you could seal them all up before putting on the interior skin, I'm afraid the movement down the road would flex them open again before long.
One of the other "weak links" is at every bolt attachment through the channel & into the wood...water will get in there, even if you paint or epoxy coat the surface of the floor - the bolts/screws compromise the epoxy. We put a dap of Vulkem at every biolt/screw but I'm not convinced itreally makes a big difference...but we did it anyways.
The best bet is to stop the leaks from the outside (or inside of the exterior skins)...that really is the biggest problem area. And unfortunately, the more end cap segments - like our 13-panel, the more opportunity for leaks to get in and travel around...