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Post by Deleted on Jun 19, 2015 10:43:18 GMT 10
Hi, been reading a lot about roof sealing. Some time ago a guy was telling me he bought some tape about 4 inches wide, ran it along outside roof joints, and painted on a tar type substance. He had been on the road for a while and had never had anymore problems. Does anyone know what these products would have been. Unfortunately I lost the bit of paper that I wrote the details on.
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Post by Deleted on Jun 27, 2015 11:39:47 GMT 10
I read something very similar on the caravanners forum....but I don't re call which topic or post it was.  |
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Post by Mustang on Jun 27, 2015 13:07:38 GMT 10
Something like this may suit link |
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Post by mike on Jun 27, 2015 14:22:02 GMT 10
Camec sell a very thick oil-based paint for just this thing.
No tape... just paint it on the seam: it flows into the seam like paint does, but this never appears to set hard.
I used it on my sister's pop-top roof seams only. It was a cream colour but not to worry: who gets up on a ladder to point out the mismatched roof paint colour you've put on! Tell them to go home! ( I don't know if it comes in different colors but I can't see why not!)
Cheers
mike
There's been no complaints about it not being successful YET. (Job done Dec14).
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Post by doublechevron on Jun 27, 2015 20:50:27 GMT 10
I dont' think anything other than completely stripping the old sealer away and troweling silicon down the roof seams would work in the long term ......
seeya,
Shane L.
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Post by Mustang on Jun 28, 2015 9:34:53 GMT 10
I dont' think anything other than completely stripping the old sealer away and troweling silicon down the roof seams would work in the long term ...... seeya, Shane L. AAaaaahhhh theres that Sil**ne word again   |
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Post by doublechevron on Jun 28, 2015 11:32:34 GMT 10
I dont' think anything other than completely stripping the old sealer away and troweling silicon down the roof seams would work in the long term ...... seeya, Shane L. AAaaaahhhh theres that Sil**ne word again What's wrong with silicone... Have a look at the wiindsor I just bought. nearly 30years old and the silicone on the roof seems is as good as the day it left the factory. Amazing stuff is used correclty  seeya, Shane L. |
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Post by Mustang on Jun 28, 2015 17:26:21 GMT 10
Amazing stuff is used correclty seeya, Shane L. Hi Shane, My experience has only been BAD, with idiots on the end of the gun  Just dug another window out today, plastered with the stuff, spent all day removing it from the frame, getting experience though.  Cheers |
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Post by doublechevron on Jun 28, 2015 20:10:10 GMT 10
Amazing stuff is used correclty seeya, Shane L. Hi Shane, My experience has only been BAD, with idiots on the end of the gun Just dug another window out today, plastered with the stuff, spent all day removing it from the frame, getting experience though. Cheers  Do it right ... and it's the best of the lot IMO. The stuff on the roof of the windsor I have to cut off.... It's so sound it'll do another 30years easily. I really don't think the sealer type that is used matters. more important is proper preperation. And ensuring you "hydraulic" the sealant down into all the voids by squeezing it out. Where silicon fails, so would a fancy urthane if surface prep is poor. Personally I HATE silicon with a passion. Once someone uses it near *anything* it's then almost impossible to clean or paint in the future. It's also very painful to remove. It is a brilliant product if used correctlly though. That Chesney I just sold won't leak again in my lifetime from anywhere I've re-sealed. I'm quite sure of that This windsor will be the same. This is silicon ... about 30years old. I can't get it off. It's as sound as the day it was applied 30years ago... I had to mechanically cut it with a knife to get the Truline seals off. Nothing sealed with silicon has leaked since the caravan was built. Everything sealed with mastic HAS leaked. All the leaking mastic covered with silicon has continued to leak and looks bloody horrible. You must remove, clean and reseal with whatever your favorite sealer is .... and i reckon these days it'll last the life of the caravan (as the products are way better than the mastic used in the past). seeya, shane L. |
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Post by atefooterz on Jun 30, 2015 22:49:54 GMT 10
In a previous 1970s life, back when Australia not only manufactured stuff but innovated as well, i was involved with heart pacemaker production. Silicone was used in a few areas. I do find many similar negative posts about it similar to "fibreglass". Both are easy to DIY but also make rookie errors. Rule#1 As Shane posted above, surface prep is key! Rule#2 The best surface prep means nought if sweaty and or greasy handprints, contamination from dirty clothing swishes accross the work area. Rule#3 Depending on the quality of the sillycone will make a huge difference. The wrong one with excess acetic acid will over time eat new leak spots into the alloy, especially if paint is missing.#Rule4 Humidity of at least 60% is preferred so as to allow the product to skin evenly!!!! #Rule5 Again as Shane points out... "hydraulic" or ooze the product into all voids as any air bubbles will lead to seal failure down the track, the temperature xtreams that particularly a roof suffers always sort out the instal issues. I was never tempted to use any mastic products to seal yacht stuff so i consider a caravan the same way, do it once and do it well! |
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Post by Mustang on Jul 2, 2015 18:48:47 GMT 10
With all the advice from above, I guess my beef is removing windows that have been "Stuck" in with silicone. Other than windows I havn't had to reseal. The previous owners of our van, no doubt have not preped the surface , therefore allowing the silicone to part from one surface, where a leak has then formed, to remove this evil substance from the opposing surface has caused me many hours of unnecessary work. Hence why I went down the ribbon mastic path.  The issue will go on untill a manufacturer come up with a "brilliant" one surface suits all  |
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Post by atefooterz on Jul 2, 2015 22:47:50 GMT 10
Manufature and what is available, at the time, dictate what is used when. The speed of laying mastic tape plus no mess and minimal clean up after makes it attractive. The fact that most windows instaled this way stay water sealed for thirty plus years can not be ignored. |
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