Installing a roof ladder - Fiberglass RV
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Old 11-05-2020, 04:22 PM   #1
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Name: Vic
Trailer: Trillium 4500
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Installing a roof ladder

I'm curious to know which fasteners other people have used to attach a roof ladder. I'm attaching it to a Trillium 4500. I'm hesitant to use bolts that have the nut in the cabin area. My inclination is to use very short stubby sheet metal screws with a coarse thread, and hope they don't penetrate into the cabin. Anyone have thoughts on this?
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Old 11-05-2020, 11:12 PM   #2
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Clickbond studs.




https://www.clickbond.com/products/studs-standoffs
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Don't drill holes, try custom storage you design: https://RVWidgetWorks.com
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Old 11-05-2020, 11:25 PM   #3
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Trailer: 17' Casita
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Originally Posted by vicinto View Post
I'm curious to know which fasteners other people have used to attach a roof ladder. I'm attaching it to a Trillium 4500. I'm hesitant to use bolts that have the nut in the cabin area. My inclination is to use very short stubby sheet metal screws with a coarse thread, and hope they don't penetrate into the cabin. Anyone have thoughts on this?

How thick is that fiberglass shell ? Screws alone could not stand the heavy load. For similar duty the builder would have incorporated wood backing strips into the shell.
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Old 11-06-2020, 07:17 AM   #4
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Fiberglass shell itself on a Trillium is thin and is not going to support a ladder. This is why you see wood on the inside around all the windows, as well as behind the door hinges. Not enough to bolt through, you need wood on the inside.

+10 to below. Easy access to the roof that barely supports itself, what is the objective?

Roof will NOT support a storage box. If you want a roof top storage box, look at the tow vehicle instead.
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Old 11-06-2020, 07:25 AM   #5
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Important question is why.

Agree the thin, unreinforced fiberglass shell of smaller egg trailers cannot support a ladder mount. But the roof cannot support a cargo mount, either.

What’s the goal? Maybe there is another approach.
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Old 11-06-2020, 11:01 AM   #6
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Name: Chantal
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Telescopic ladder instead?

Why not get one of those telescopic extension ladders from Amazon, and fasten it to your bumper when not in use?

https://www.amazon.ca/Stanz-Portable...dDbGljaz10cnVl
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Old 11-06-2020, 03:15 PM   #7
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The purpose is to clean a solar panel regularly as well as access a future storage box.
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Old 11-06-2020, 06:00 PM   #8
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Originally Posted by vicinto View Post
access a future storage box.
Not strong enough to even support a roof AC; I am told. Unless you reinforce the roof, just like this guy did




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Old 11-11-2020, 01:48 PM   #9
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My Trillium 4500 came with a roof rack and ladder mounted behind the non-operative rear window. Debris collected under the roof rack making it difficult to keep clean. The bottom mount of the ladder affected the passenger side rear light and a non-standard Trillium light was installed. The top mount of the ladder was mixed in with the top edge of the window. I never used the rack or ladder. They were both removed recently when I had the windows re-caulked. Others have commented on the lack of load carrying capacity of the Trillium roof.
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Old 11-11-2020, 03:57 PM   #10
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My Trillium 4500 came with a roof rack and ladder mounted behind the non-operative rear window.
Was it installed by the factory or by the PO ? As was said before those fiberglass shell do not have any type of framing. To carry a load on the roof will require a few strong support columns underneath, as shown in pictures
Attached Thumbnails
jack 1.jpg   jack2.jpg  

jack3.jpg  
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Old 11-11-2020, 04:07 PM   #11
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Name: Scot
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I have no knowledge about the rack and ladder installation. I think a previous owner installed the roof rack and ladder. While the roof rack had hardware that penetrated the roof and elephant hide; the ladder attachment affected the rear window, causing a leak. The rear lights are not original and original lights would not fit with the ladder attachment.
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Old 12-02-2020, 07:57 PM   #12
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Originally Posted by boler girl View Post
Why not get one of those telescopic extension ladders from Amazon, and fasten it to your bumper when not in use?

https://www.amazon.ca/Stanz-Portable...dDbGljaz10cnVl
Absolutely go this route. You can put the ladder where you need it, Stay off the roof, just work from the ladder. This one gets good ratings and reviews also....
https://www.amazon.com/dp/B07MLVG9J8...v_ov_lig_dp_it

I have a Bigfoot 21 ft and it has the roof ladder and roof rack, both of which I wished it didn't. Possibly some day I will remove them and properly fill the holes and do gel coat touch up. The less the better.

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