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Old 07-31-2015, 02:09 AM   #1
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88 Gulfstream Roof Repair/Rebuild

I've had this unit for close to ten years and traveled extensively. It's always had a spot on the roof at the rear in the area of the ladder that aluminum roof has separated for the plywood under it. My last fix Didn't work and it let water in and it showed up on the bedroom celling. We're into a week or more of hot dry weather so now is the time to fix it right. I now have a 3' x 6' opening where the roof used to be. (I'll post pics tomorrow.) This was a Top of The Line unit in it's day Built by an Aircraft Associated company and I expected a whole lot more. I expected to find 1/2" - 3/4" plywood roof with the aluminum sheet over that, what I found was 2x4 cross beams aprox 16" apart with cross beams only at the roof vent to mount it. A piece of 1/8" plywood was used on either side of the 2x4 with Styrofoam in between. Every time someone went up on the roof this lack of support caused the roof to fail.
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Old 07-31-2015, 11:57 AM   #2
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That's not unusual roof structure. If it was built of stouter stuff your weight rating and stability due to being top heavy would result. If you want to build it out so you can have a party deck, have at it, but you'll find it will cause other issues.
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Old 08-01-2015, 05:06 AM   #3
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I totally understand the weight issues, but thought the manufacture would understand that a 2' gap in between supports would cause roof failure. some pictures. The hole, the mess, and some work accomplished. Decided on a polycarbonate 2' x 4' sky lite over the bed and standard repair for the rest of it. sky lite on the way. hope it arrives before rain but have a big tarp just in case. More pics when more progress.
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Old 08-03-2015, 09:20 AM   #4
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You have a wood roof structure?? Are the walls wood framed as well? Just curious since the brochure for my '85 Sun Stream describes a '1 1/2" steel-cage superstructure' for the side walls, roof, and floor.

Hope all goes well and you have dry conditions until the skylight is in and sealed.
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Old 08-04-2015, 06:42 PM   #5
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All the cross beams so far have been 2 x 4's. I suspect the very aft cross beam is steel as the top side frame is steel. I had hoped for an aluminum framework as the parent company is an aircraft company. Oh Well!
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Old 08-04-2015, 09:40 PM   #6
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Quote:
Originally Posted by Jpony56hd View Post
All the cross beams so far have been 2 x 4's. I suspect the very aft cross beam is steel as the top side frame is steel. I had hoped for an aluminum framework as the parent company is an aircraft company. Oh Well!
I think you are misinformed. Gulf Stream RV grew out of a mobile home manufacturer in Nappanee, IN.

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Old 08-05-2015, 12:29 AM   #7
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I stand corrected and that explains a lot. Somewhere I picked up that misinformation and took it as fact. Thanks.. I had expected Airstream type quality and was always confused why I felt more like I was in a Mobile home. Now I Know.
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Old 08-05-2015, 12:52 AM   #8
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Got a fair amount of roof work done this afternoon. Installed the rest of the cross braces and put the plywood base down, then installed aluminum sheet over that to match the original roof. Then sealed the gaps and 2" wide strip over the joints with a aircraft sealant (BMS 5-95 B2). Next up is to skylight frame work. The weather forecast for tomorrow shows Scattered Showers. So I threw a big tarp over it all the while knowing that if I didn't, the showers would scatter right over my open roof.
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Old 08-07-2015, 07:28 PM   #9
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Some more progress. The roof is done and the aluminum installed and sealed, the sky lite frame is completed and the ceiling base installed along with the factory foam block insulation. I'm also taking the rear ladder off as we now have roof access thru the sky lite where the roof a/c unit was. I'll install the Cedar the same as the rest of the mh this weekend. The sky lite is suppose to be here Monday.
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Old 08-17-2015, 08:46 PM   #10
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Finally finished and passed it's first test. We had a lot of rain, hail & wind this weekend and all is well. I had originally thought about removing the roof vent just forward of the skylite but due to a couple of low tree branch incidents caused me to leave it. It just may deflect the branch up and over the skylite, 50/50 chance. It's much cheaper to replace it than the skylite. On to the next project.
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Old 08-18-2015, 07:24 AM   #11
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Nice job, Looks like the skylite belongs there and came from the factory.
Frank
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Old 08-18-2015, 08:09 AM   #12
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that turned out nice ,,,,
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Old 08-18-2015, 05:51 PM   #13
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Thanks to All.
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Old 08-18-2015, 07:48 PM   #14
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So the skylite opens for roof access? And you replaced a roof a/c with this skylite?

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