Rubber Roof Leak Repair — CamperCommunity Forums

Rubber Roof Leak Repair - CamperCommunity Forums

Rubber Roof Leak Repair

I wanted to share this with those who may be in a similar situation as I was.

We bought our camper used from a dealer, but in new condition. There was said to be no leaks at all in the unit. Well, after 2 or 3 good rains, we had a leak, and it was coming in pretty good. I had never worked on a rv camper rubber roof before, so I had no idea what I needed to do, other than dive in and find it, and go from there.

I went on the roof and found a large area where a ton of silicone had been applied. So, I immediately thought, add more silicone. Wrong answer it seems, still leaked after the next rain. After some research, I learned this is NOT a leak fix for rubber roofs. So I put a tarp on it while I did some research.

I had to determine exactly where the leak was, so I used a garden hose and put it in different spots on the roof for a few minutes at a time, until I could find the source. Once I found it, I realized it was leaking in the corner, where the rubber roof meets the aluminum frame of the camper.

I spent a day on top of the camper, and removed all the old silicone. Then I removed the threshold that joins the roof to the aluminum frame. Once i did that, I was able to lift up the roof about 6 inches and see the wood underneath. The corner that was suspect to being the problem, definitely was due to the wood discoloration, and it was still damp. So I placed a couple of towels underneath the roof to hold it open to the outside air to allow the wood to dry out before repairing. Do this when there is no rain in the forecast

Now, how to fix it so it wouldn’t leak.

I read about some stuff called eternabond, a microsealant tape that has lifetime and worked really well on rubber roofs. I think it was pretty new to the RV market at the time, but it has become quite popular since. I believe it was originally designed for underwater repairs/leaks, and has a lifetime guarantee against leaking. So I guess if you ever sink your camper and need to patch it, it should work underwater

So once the wood had completely dried, I placed the roof back down in place, and used the eternabond tape (4 wide), which was wide enough to have half on the rubber roof and half on the aluminum frame, therefore completely sealing the wood from water. I debated whether to put the threshhold back in place, since I had basically created a threshold with the eternabond. After some further investigation, I found that putting the threshold back on with the screws I removed, would be just fine. The tape is very sticky and if you screw something through it, it completely adheres to the screws and still provides a 100% seal. So I did put it back on.

After using the eternabond tape over a year ago, not a drop of water has found the camper. knock on wood :thumbup2:

I bought a huge role of this stuff, 40 feet I think, and only used about 10 feet of it, but I plan to do my other roof seams in the near future to prevent anymore leaks. But heck, you can use it for about any leaks. My neighbor had a leak in there above ground pool last summer and i put a patch of it on there, worked like a champ. It is not cheap stuff, but it is well worth it.

I actually believe now that the people that had the camper sold it because of this. While trying to find the leak I found silicone on the roof, around the ac unit, and completely around one side window of the camper (another story). It was still leaking and I think they gave up on it and sold it. It was practically brand new and didnt have a spec of dirt in it.

You can see the video below for a general idea of the product.


States I have Camped

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