Where's this coming from? Trailer floor leak.

Anybody got a good idea of where this leak is coming from? Pics are attached.

I was starting to prep the frame and underside flooring on my enclosed trailer when I noticed the water damage. It's not wet or soft at the moment and is located right in the area of the side door. So, I suspect the gaps at the bottom of the door jamb is causing the leak.

It's supposed to rain over the next few days so I might be able to see where the water is coming in from. Planning to re-caulk the door jamb with ProFlex or Marine sealant.

 

That looks like a lot of water. I'd bet it's coming through the roof/wall seam over the door and running inside the wall.
Walls are weakest where door frames provide leverage to distort them. The distortion works to compromise the seal.

 

Ditto. I'd start by inspecting the roof.

 

I'm with these guys...your leak is definitely from above said area.

 

Is there a drip edge above the door? If not, there should be and it should be caulked as well.

 

Probably from rain.

 

A pure MFin genious there.

 

That's why he gets the big bucks.

 

You dont worry about leaks when you buy a new trailer every year and store it in Livengood's living room when not in use.

So thats where he thinks leaks come from. The sky. Or well casing, drill rods or BOP. That's all he's got.

 

You don't give him enough credit. Remember the gorilla ice fountain display @ 151 Broome Way.

 

Haha. Broome's not wrong though.

 

Run a garden hose to a sprinkler park it under the top of the stream, and find it before you waste time chasing invisible shit

 

I checked the walls around the door but only the interior walls, obviously. And it looks like I need to re-do the caulking anyway.

This situation brings back not-so-fond memories. As an apprentice in an auto body shop, the senior mechanics would dump the "repair" jobs of finding water leaks on me. Rain or shine, it was an outdoors job.

 

Flex-seal the whole thing, inside out

 

You're talkin' about the caulking for the roof/wall seam, right?
Scrape all the old caulking off and reapply all new. It's available at RV stores and maybe camping stores and big box stores with a camping/outdoor section.

 

Yep. I scraped the old off, applied new caulking, then went over that with the permanent tape to double the seal up.

 

That usually fails, as the tape does not stick to silicone. At all. Just make sure the caulking you applied was to a good clean surface. Or the tape. Use one or the other.

 

Yeah, it doesn't stick to the caulking, but the tape was wide enough (6" IIRC) to where it provided a waterproof seal all the way up to the caulking on both sides. Not saying what I did was right way, but it's been a couple of years and no leaks yet.

 

When I redo the sealer on the roof, I go back over it with elastomeric paint. It's not pretty, but it oozes into cracks and seals them. It also reflects heat, so the trailer will stay cooler. I like to repaint them every year. If I see cracks when I go to paint, I put self leveling caulk in those first, let them dry and then paint.

 

Call me crazy but I went over the caulk and seam tape with heat reflective and water-proofing trailer paint too. About 3 coats