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Post by lopo on Apr 6, 2012 8:56:03 GMT -5
I've read thru the threads about roofs and haven't found this - point me to the right thread if I've missed it. I have a low spot on the roof of my 72 Compact where water pools. What should I do about it?
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Post by universalexports on Apr 6, 2012 9:23:53 GMT -5
well a small low spot I wold think would not be an issue, as long as it doesnt leak, it will evaporate or be thrown/blown off when you travel.
as long as it is not enough water to add a lot of weight.
about the only fix I could think of would be adding reinforcing wood inside the ceiling. which makes me think you might have a rotted wood issue there under the low spot, if it is much of low area.
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offspringin
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Never question the engineer's judgement!
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Post by offspringin on Apr 6, 2012 9:38:11 GMT -5
same issue with mine and i know my wood is good. found that when it fills over a large rain it will leak in but its deep enough it might be coming in around the hardware mounting the maxxair cover on mine.
while camping we will either unlevel it if its raining hard, or if its a decently light rain i just wait till its over and raise the tongue, all the water runs off the back.
we never noticed this as an issue until an early march camping trip monsooned us first night. when it was in the driveway uncovered i kept it jacked as high as i could to make it super sloped, no way water could stay on it. Now we have the carport for it and i feel so much better about that decision.....
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Post by lopo on Apr 6, 2012 10:11:32 GMT -5
The PO I bought it from says he's used the paint-on stuff for truck beds to build it up, but not sure I want to add anymore goop to the roof if it's not necessary. It'll bet my low spot is the same as yours, offspringin, because it's close to my vent (but not actually involved with it). I don't have water damage in the ceiling. I guess until I can get a shelter for it, I'll try raising the tongue after rains.
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boandsusan
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Christmas parade 2012
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Post by boandsusan on Apr 6, 2012 16:49:39 GMT -5
We also had a low spot which puddled on our roof. No leaking though. When I ripped out the ceiling, I noticed that the ceiling also dipped in that area. Nothing to do with our vent either. I believe that I mentioned what we found in our restore. The crossmember in the ceiling that runs over the top of the toilet area/closet, was made in 2 pieces. Where these 2 pieces met, they were just kinda flapping loose. It may be that they just sat on the closet wall but when we removed the closet and took the ceiling panels out, they had no support. All our ceiling crossmembers were in exellent condition so I simply scabbed/ran an extra crossmember along side the original.It seems to have taken care of our roof crater.
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Post by lopo on Apr 6, 2012 17:19:35 GMT -5
So there's nothing I can do without tearing into my ceiling? Hmmm. Not gonna happen here unless the ceiling is falling in so I guess maybe when it's sitting in the driveway, I'll keep the tongue higher than the rear and hope it runs off - just as soon as I'm sure I've got the rear window in good shape.
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boandsusan
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Christmas parade 2012
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Post by boandsusan on Apr 6, 2012 17:47:02 GMT -5
I wouldn`t tear the ceiling out if it isn`t leaking! I think what you have in mind will work just fine.
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vikx
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Post by vikx on Apr 7, 2012 0:42:40 GMT -5
There's not a lot you can do without taking it apart.
One thing you could do is pull the vent this summer. This will allow you to inspect the wood vent frame and strengthen it. Boandsusan is right, the boards are just flapping around. Shim the vent (just under the metal and on top of the original framing) before re-installing the vent. That will keep the vent higher than the rest of the roof.
Also, there is a product, Proflex, that might help. It is a paint on clear sealant, NOT the same brand caulk. If painted on a low area, it will protect the metal from deteriorating when water puddles. It also is a great sealant. Not the prettiest of fixes, but also not visible unless you're on a ladder.
Hope this helps.
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Post by lopo on Apr 7, 2012 5:00:08 GMT -5
Big help! I'll pull the vent this week and do it. Thanks, everyone!
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kayaxi
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Post by kayaxi on Apr 7, 2012 8:51:43 GMT -5
I shimmed my vent the way vikx mentioned the other day. Also used butyl between the shims and the skin, more butyl around the opening under the vent. Don't think that'll leak again. Since it did leak previously I had to take out the ceiling panel. While that's out I'll add a little wood perpendicular to the existing braces at least in the center, to add support to keep it from sagging with rain/snow.
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cowcharge
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Post by cowcharge on Apr 7, 2012 19:48:58 GMT -5
You could drill a small hole in the ceiling underneath the dent, push a dowel up in the hole until it pops the metal up, and then pull the dowel out and fill the cavity with enough expanding foam to keep it up... Then fill the hole afterward. If you're lucky the dent's close enough to a light fixture, that you could do it without drilling.
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