This article is going to be talking about EPDM vs TPO RV rubber roofs. Which one is best your RV roof?
And of course, an RV roof is critical for you to enjoy your RVing adventures.
Because it does so many things to provide a comfortable experience as you travel and camp.
But perhaps the most important job is sealing out water intrusion that can ruin your RV.
Now there’s four main types of RV roofs that are the most common ones you’ll see.
And that is rubber roofs, PVC, fiberglass, and aluminum. But this article is only going to talk about rubber roofs.
And one reason for that is rubber roof material is by far the most common material used in RVs.
Table of Contents
- EPDM vs TPO
- The Pros Of An EPDM RV Roof
- The Cons Of Having An EPDM Rubber RV Roof
- EPDM vs TPO – The Pros OF TPO RV Roofs
- The Cons Of TPO Rubber RV Roofs
- What Kind Of Rubber Roof Is On Your RV?
- Here’s How To Find Out What Your Roof Is Made OF
- EPDM vs TPO – Maintain Your Rubber Roof
- Conclusion
EPDM vs TPO
So what we’re going to do is compare the two main kinds of rubber roofs. And that’s EPDM versus TPO.
Also, in case you’re wondering, all those letters stand for something. They stand for words that are really long and hard to pronounce.
So we’re just going to use the easier acronyms today, EPDM and TPO.
And we’re going to compare them against one another and discuss the pros and the cons of each kind of material.
Then afterward I’m going to explain a way that you can find out what’s on your RV’s roof. That is, if you have a rubber roof.
And that’ll be very important information for you to have. OK, let’s get started.
The Pros Of An EPDM RV Roof
First up, we’ll start with EPDM and discuss its advantages or pros as an RV roofing material.
And one advantage is that it’s very lightweight. Which is a real pro for any material used in RV construction.
Also, it doesn’t dent, scuff or scratch very easily. And that’s good for longevity.
Also, there’s fewer seams in the material itself when it’s manufactured.
So it’s very likely that you can get a full one piece roof of EPDM when it’s installed.
But the best thing about EPDM is that it can last up to 25 years if it’s maintained correctly. And that’s great for RV owners.

The Cons Of Having An EPDM Rubber RV Roof
Now everything is not all positive with EPDM though. There are cons as well. So let’s talk about the EPDM cons.
And number one is that it can puncture fairly easily. Yes, it does resist scratching and and denting and all of that. But it can puncture easily.
Also, over time EPDM darkens with age. So it becomes gray to dark gray sometimes.
And that means that it starts to absorb heat into the RV living area. And that makes your whole air conditioning system work a lot harder
It also can leave black or white streaks going down the side of the RV too.
That’s because EPDM is designed to shed some of its material as it ages. So it often goes off the edge and down the sides of the RV.

EPDM vs TPO – The Pros OF TPO RV Roofs
In the EPDM vs TPO comparison we are halfway there.
Now let’s talk about the TPO pros and cons too. And the first pro of TPO is that it resists mold and dirt very well. And that’s great for cleaning your roof.
Secondly, it also is not easily punctured like EPDM. In fact, it’s very tough and durable material.
And there’s less streaking that goes down the RV sides as well.
But probably the best thing about TPO is that it very often comes in very white material.
So the material itself reflects heat away from the RV. And that makes you more comfortable in your RV in the summertime.

The Cons Of TPO Rubber RV Roofs
But what are the cons of TPO? Well first of all, it doesn’t last quite as long as EPDM. About 15 to 20 years on the average.
And there’s less consistency in the quality of the materials that come out of the factory. Especially from different factories and makers.
There’s also more seams in a TPO roll of material than there is EPDM. And that can be something to deal with when it’s installed.
OK, now we’ve covered the pros and the cons of EPDM vs TPO pretty well.

What Kind Of Rubber Roof Is On Your RV?
So let’s get to the question about what’s on your RV roof? And how do you know what kind of material it is?
Well you know, it’s interesting that there’s not a lot of information out there about this.
Especially reliable information about how you can find out what kind of rubber roof you have on your RV.
But I found something from Dicor that I think I can trust. Now Dicor is a leader in roofing and sealant products for RV roofs.
And they’re a very trustworthy company too. So I trust what they have to say on this matter.
And here’s what Dicor says you should do to find out what kind of rubber roof you have now.
Here’s How To Find Out What Your Roof Is Made OF
They say you should go to one of the roof vents in your RV that’s in the ceiling.
Then take down the outer trim ring of the roof vent. And usually there’s just a few screws that hold it up.

Then when you take that trim ring down, you can look inside the cavity where the vent was installed.
And on the side walls very often you’re going to see some extra roofing material.
Excess that was cut and folded in when the vent was originally installed on the roof.
And that allows you to see both sides of the material used for roofing your RV.

So take a look at both sides. And if one side is white or dove gray and the other side is black, Dicor says it’s most likely EPDM.
But on the other hand both sides could be pretty much the same color. Or maybe one side even has a felt backing but it’s all the same color throughout.
Well in that case, it’s most likely TPO. And that’s their guidance on the matter.
Once again, I tend to trust what Dicor has to say on the subject. Because making RV roofing products is their business.
EPDM vs TPO – Maintain Your Rubber Roof
OK, so now let’s move on to the subject of maintaining your rubber roof.
And whether it’s EPDM or TPO we’re going to cover five points about maintaining it.
Roof Maintenance Point #1
Number one is you should wash or condition your roof at least annually.
In other words, once a year is the the least amount of time that you should be up there washing and conditioning it.
But it’s better to do it every six months instead if you can.
Roof Maintenance Point #2
The number two point is when you wash your roof Dicor makes a great wash for RV rubber roofs. Whether it’s EPDM or TPO. So that’s a great product to use on your roof. Click the image below for more information.
Roof Maintenance Point #3
Number three is after you wash it you should condition it by applying an ultraviolet protectant. This helps extend the life of the roof considerably.
And once again, Dicor makes a very good one to use on rubber roofs. Just click the image below to learn more about it.
You see, the whole idea is that once you’ve cleaned it, now you put this protectant on it. And that shields the roof against ultraviolet rays.
As a result, the sun’s rays don’t do near as much damage. And that’s really what breaks down a rubber roof quicker than almost anything else.
Roof Maintenance Point #4
Number four is when you’re up there on that roof look for any punctures or tears.
In fact, it’s a good idea to make a run up on your roof every couple months or so.
Or if you can’t do it, get someone you can trust to do it for you.
Then take a look and see if there are any punctures or tears in your rubber roof.
And if there is, I recommend carrying a roll of Eternabond tape with you for that situation.
It will do wonders for any puncture or tear on your RV’s rubber roof. And it’s so simple to use, anybody can do it.
Just click the image below to learn more about it.
You just apply it right on the problem area. And your whole problem is solved for many years.
Roof Maintenance Point #5
OK, the final point about maintaining rubber roofs is that you might even consider coating your rubber roof.
That’s because roof coatings can help extend the life of a rubber roof even further than UV protection.
And if you use the right coating, it might even extend it almost indefinitely!
But the subject of RV roof coatings is a whole other subject to itself. And I’m not going to cover it here in this article.
However, I made a video on that subject that could be helpful to view. You can find it here:
At least it’s something for you to consider in your roof maintenance schedule.
Conclusion
Alright, now let’s get back to the original question for this video. And that is EPDM versus TPO, which is better for you to use on your RV?
Well here’s my take on it. They both do a good job. But if your main priority is how long that roof will last, then EPDM certainly comes out ahead.
On the other hand, if you are in a really high heat area, it could be an issue to have a darker roof like EPDM.
And in that case, then maybe TPO could be better for you instead.
But actually, either one works very well. And they are both proven over many years to do the job that they are designed to do.
And that is to protect you and your RV and let you enjoy RV travel and adventures.
Have safe and happy RV travels!



















