Trillium Roof Problems - Fiberglass RV


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Old 08-28-2017, 11:25 PM   #1
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Name: paul
Trailer: Trillium
British Columbia
Posts: 10
Trillium Roof Problems

Hi all,

I just purchased a 1972 Trillium 13'. Overall it is in solid condition however part of the back roof section (about 1.5-2 ft. diameter) is dished and "pops" convex/concave. This may be a problem originating at manufacturing.

Does anyone know of this problem in other trailers... is it normal? How can it best be remedied?

Cheers, Paul
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Old 08-29-2017, 03:47 AM   #2
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Name: Dave
Trailer: Casita SD17 2006 "Missing Link"
California
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Welcome to the forum Paul. I'm not 100% sure but I do believe some early TTs had a problem like that. Others will be along with better info.
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Old 08-29-2017, 03:17 PM   #3
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Name: Gordon
Trailer: Trillium
British Columbia
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My Trillium is a very old one.

When I got it, the roof had 'dipped' in the front area (in front of the existing vent) and, in the back area there was a 'dip' of about an inch - plus a completely punctured area of about a square foot.

I shored the roof up on the inside. I sanded down all the multi-layers of paint, then the gel coat (which was deteriorating). I then cut strips of 1/4" maple plywood, used epoxy to glue them to the shell, on the outside. I then 'glassed over them with epoxy resin, light weight mat and cloth.

I did this on the outside because the ensolite had not been damaged on the interior and I wanted to keep it.

After I did this, removed the interior shoring, the roof has stayed the correct shape.
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Old 08-29-2017, 05:08 PM   #4
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Trailer: 1993 Bigfoot 17 ft
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We have a 1979 Trillium 4500. The roof had sunk a bit between the door and the bathroom "wall" on the right hand side of the door. We custom shaped a wood support and just jammed it in place...no more problem, at least so far!
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Old 09-03-2017, 12:41 AM   #5
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Name: paul
Trailer: Trillium
British Columbia
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Quote:
Originally Posted by Min View Post
My Trillium is a very old one.

When I got it, the roof had 'dipped' in the front area (in front of the existing vent) and, in the back area there was a 'dip' of about an inch - plus a completely punctured area of about a square foot.

I shored the roof up on the inside. I sanded down all the multi-layers of paint, then the gel coat (which was deteriorating). I then cut strips of 1/4" maple plywood, used epoxy to glue them to the shell, on the outside. I then 'glassed over them with epoxy resin, light weight mat and cloth.

I did this on the outside because the ensolite had not been damaged on the interior and I wanted to keep it.

After I did this, removed the interior shoring, the roof has stayed the correct shape.
Thank you for your reply. Sounds like the fix I'm contemplating. Do you have any photos you could share?
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