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Old 04-16-2017, 07:17 PM   #1
SummitPond
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Roof/truss question

While leaning over the roof cleaning and filling cracks in the Dicor, I noticed a roof truss that seems to be sticking up a little above the roof's surface; I don't know whether the roof is depressed around the truss or the truss has extended up. I've included a picture below. This is the only location I see this occurring.

Has anyone seen this before and/or know what the cause is?

Should I be concerned?

Thanks.
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Old 04-16-2017, 07:24 PM   #2
chuckster57
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Looks to me like a seam in the decking material. As long as it doesn't get any worse you should be okay. Keep an eye on it.
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Old 04-17-2017, 05:30 AM   #3
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Yup, just like chuckster said, it's the seam in the OSB roof decking. It's NOT the roof truss "poking through the decking"... Physically, what's under the TPO is an abutment where two sheets of OSB come together (over a roof truss). That OSB abutment is stapled to the truss and a piece of paper "seam tape" is applied over the edges to help smooth the joint. Then, when the TPO is applied, the entire surface of the OSB is "painted" with adhesive, the TPO is placed over it and then rolled in place to get better contact.

When towing your trailer, it twists and flexes. Sometimes the staples used to hold the OSB sheets to the trusses will twist and pull up, causing what you see in the picture you posted. I have a couple of OSB joints on top of my Cougar that have done the same, but not quite as noticeable as yours.

The "fix" is to cut or remove the TPO roofing, resecure the OSB to the truss and reinstall the TPO. That's a very costly process and usually not necessary.

As chuckster said, at this point, just watch it and be careful walking in that area. If you see any staples start to protrude through the TPO, if you see any surface damage to the TPO then it should be repaired. On the other hand, if it doesn't get any worse, it's probably better "left alone" rather than cutting the TPO to gain access or trying to remove and reinstall the TPO to fix something that may not get any worse.

Now, if you're still in warranty, you might talk your dealer into getting warranty authorization to fix it, but I'd almost bet that Keystone wouldn't approve a warranty claim for something that hasn't caused any TPO damage.

ADDED: Here is a picture of the roof decking with paper seam tape in place before the TPO was installed. This is what the OSB on the roof of your trailer looks like "under the TPO"....
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Old 04-17-2017, 10:36 AM   #4
SummitPond
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John and Chuckster,

Thank you for sharing your knowledge.

I will keep an eye on it.

FYI, I haven't yet crawled up on the roof - with all the posts about being careful, I just lean as far as I can. I do know that at some time someone has been walking around on the roof - there's a nice print of a sneaker in the Dicor around the antenna! Do the techs use plywood? And if so, why the footprint?

I hope to take a tour of the factory later this spring. We will be headed back east after a visit to Denver for a family function. While it's not exactly on the way, who knows when I'll get that close again.

General question: Why did the manufacturers move to rubber for the roofs? Was it strictly cost and weight? I don't ever recall my father having issues with the roofs of the various TTs we had while I was growing up (Shasta, Holiday Rambler). He can't recall what the roofs were made of (aluminum?) but he's certain it wasn't rubber.
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Old 04-17-2017, 11:48 AM   #5
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If you're under warranty, I think I'd take it in and at least have it documented. I agree that Keystone is likely to claim "cosmetic" and exclude it, but the OSB shouldn't be doing that and if it causes future issues, you'll be able to show that it occurred in the warranty period.


Why did they move to rubber?
1) Versus aluminum, it's certainly cheaper.
2) Versus fiberglass, it's certainly cheaper.
3) It's flexible, relatively easy to repair, relatively easy to maintain, relatively easy to install...
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Old 04-17-2017, 01:19 PM   #6
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Quote:
Originally Posted by dcg9381 View Post
If you're under warranty, I think I'd take it in and at least have it documented.
Unfortunately not! Expired 16 months ago.
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Old 12-02-2017, 11:35 AM   #7
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Roof issues on my 2018 Coleman/Keystone 295QBS

Please take a look at this video in the link below. . I'm not having luck getting Keystone to fix my roof correctly. They only want to put vent caps over the areas where the screws are sticking up but state nothing is wrong where the joist/truss is sticking up. Am I wrong to think they should replace the roof? We bought it in July 2017 and it's been at Camping World since September. https://youtu.be/o-TO7IqIodI
Thanks
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Old 12-02-2017, 02:41 PM   #8
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Quote:
Originally Posted by Alanfray View Post
Please take a look at this video in the link below. . I'm not having luck getting Keystone to fix my roof correctly. They only want to put vent caps over the areas where the screws are sticking up but state nothing is wrong where the joist/truss is sticking up. Am I wrong to think they should replace the roof? We bought it in July 2017 and it's been at Camping World since September. https://youtu.be/o-TO7IqIodI
Thanks
Did you get up on the roof before you bought it?
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Old 12-02-2017, 05:15 PM   #9
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Quote:
Originally Posted by goducks View Post
Did you get up on the roof before you bought it?
I didn't and was not given the chance. I felt like cattle being pushed through. As in the video, I found the problems less than two months after purchasing it. Well within warranty.
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Old 12-03-2017, 03:36 PM   #10
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Keystone's policy on roofs (in my experience and working with other owners that had roof issues) is this:
If it doesn't leak, it's cosmetic and cosmetic isn't covered.

It's worth "documenting" with Keystone - IF you're under warranty. If outside of warranty and it's not leaking, I'm not sure there is a ton of value in doing anything...
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