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Old 09-08-2015, 09:37 AM   #29
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Fiberglass? None obviously. But I see more million dollar fiberglass MHs than I see airstreams.

And I see a lot more fiberglass boats than I see aluminum boats and airstreams combined. I say that because they live in the water and take the pounding of waves and yet they don't all suddenly delaminate.



The point we are omitting is that there are several quality levels of fiberglass and aluminum.

The corrugated sheets stuck onto a regular TT can't be put in the same ballpark as the riveted sheets on an Airstream.

And the gel coat fiberglass on my trailer is way nicer than the cheap stuff you see on some TTs.



The delamination issue is a function of a (roof) leak, not the fiberglass.

You cannot compare a fiberglass boat to and rv it's different material yes delam is caused by water but also a lot is from the glue separation


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Old 09-09-2015, 07:18 AM   #30
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If your fiberglass RV was built like a boat, you would need a M1 Tank to tow it !
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Old 09-09-2015, 09:07 AM   #31
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A 23' fiberglass boat weighs about the same as my 23' TT. Sure it's not as many layers of fiberglass in the RV vs the hull of the boat, but it is most certainly similar.
The gel-coat finish on my Winnebago is also very similar to the finish of the boat.


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Old 09-09-2015, 10:47 AM   #32
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Originally Posted by TDI-Minnie View Post
A 23' fiberglass boat weighs about the same as my 23' TT. Sure it's not as many layers of fiberglass in the RV vs the hull of the boat, but it is most certainly similar.
The gel-coat finish on my Winnebago is also very similar to the finish of the boat.


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Sorry, but no... the boat has many layers of glass and possibly some Kevlar and rigid foam in there for strength. The boat relies completely on the strength of the glass fibers and resin system. The trailer relies on the frame/floor to a good extent. The sides are primarily a mix of aluminum framing, foam blocking, and luan plywood, with a very thin coat of fiberglass mat and a thinner coat of gel coat or paint on the outside. The side components all work together to form a strong structure. None of these components alone is very strong. Glued together properly, however, they make a very strong, light structure. Combined with the frame/floor and roof structure, they do actually comprise a sound structure, but totally different from boat construction.
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Old 09-09-2015, 09:20 PM   #33
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Aluminum or Fiberglass Sides

Ok, then what would be the best manufacturing practice to look for: One where the manufactuer ( please excuse spelling, as I can't find the spellcheck on here, and I'm dog tired tonight) will put everything for the vents and a/c on the side and nothing but a empty roof, or where everything is done to excellent manufacturing practices, with no chance of water ever getting into camper? Or should this be a different thread?

It would seem that having the roof vacant of any holes would be the best way to go, for either aluminum or fiberglass.

Then, would it be best for aluminum to be horizontal, as is now practiced, or a bigger piece (read, much wider, say 60" wide, ballpark figure) that is hung vertically? That way, the owner would not be having the issues with the butyl tape, or not have to use Eternabond on the roof for holes up there.

These are just things that run through my mind as I catch up on the thread.

Trust me, this is minor to what can run through my mind, it is like it is unlimited thoughts sometimes.
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Old 09-10-2015, 10:36 AM   #34
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No one is talking about the internal structure of a boat vs RV. We are talking about the external/surface finish and longevety.
I'm not about to flip my TT upside-down and hang an outboard on it... though that would be pretty cool.
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Old 09-10-2015, 11:31 AM   #35
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No one is talking about the internal structure of a boat vs RV. We are talking about the external/surface finish and longevety.
I'm not about to flip my TT upside-down and hang an outboard on it... though that would be pretty cool.
The lamination of a fiberglass camper is done like a boat, they were saying boats don't delam like campers.

I am calling bs to that. I am born bred and corn fed on the water...boats delam for sure. Generally it's not at materials of like composition but where wood,metal and fiberglass is laminated together. Wood core boats, most floors,sterns and decks delam upon water intrusion. Same as you have in a camper.

Now...how many let your camper sit in 100 degree heat and 90%humidity, run it down the road get to your camp and crank the ac to 68*?

There are multiple layers of disimilar materials with different expansion and contraction rates which cause the walls to delam. If you want to keep your camper new keep the ac on and temp up high just to keep the humidity out and the wild swing in temps.
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Old 09-10-2015, 06:43 PM   #36
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Everything about RV's is cheap. Pick any part of it and it's inferior to it's counter part. Plain and simple the gel coating process for RV front caps is not up to the standards of boats. Just google fading RV caps or how to restore gel coat. Sooner or latter you'll find an article explaining the two processes. Boats have a much better gel coat finish. That's why they don't fade in 12-18 months.
RV fiberglass sides have nothing in common with boats.
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Old 09-10-2015, 06:44 PM   #37
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Quote:
Originally Posted by TDI-Minnie View Post
No one is talking about the internal structure of a boat vs RV. We are talking about the external/surface finish and longevety.
I'm not about to flip my TT upside-down and hang an outboard on it... though that would be pretty cool.
OK, sorry... If ya do, let me know how that works out for ya....

OK... so for a bit more info... The finish on the outside is probably some kind of paint. If it's gel-coat, it's going to be thin, but that's OK. The real kicker is that the fiberglass matting that's impregnated and bonded to the outer luan is 1 to 3 oz. per sq. yard. Compared to a boat cloth, it's very this. Boat cloth is as much as 24 oz. per sq. yard. That being said, it does help some in the strength department, but is mostly there for waterproofing. Winnebago and some others are using a true gel-coat which is sprayed on to the surface, and the matting is laid on wet. Next the luan gets dropped on and pressure applied... and viola... the laminate is formed. It's when water gets to the luan that we have delamination problems.
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Old 09-10-2015, 06:55 PM   #38
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Wouldn't that be a houseboat ??
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