rareruby63
Raymond, Nebraska
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We are about ready to put on our new rubber roof, but I have a question for those "in the know". I've cleaned off as much of the old deteriorated coating that's up there as I can, but it's somewhat rough over the seams. (It's a metal roof with some kind of old liquid sealant over it all, and it's bonded on tight!!!.) I'm going to use eternabond on the cap seams where the leaks were, but I'm a little worried about the rest of the seams across the metal roof itself. The old stuff up there is pretty permenantly adheared, but a bit crackly. I'm afraid it might be too abrasive for the new rubber roof. I could put Eternabond across those seams too, but it's so expensive! Could I put duct tape across those seams so it would be smoother for the new roof? Would the roof adhesive then stick to the duct tape? Those seams aren't leaking, I'm only worried about the roughness of them.
Any opinions?
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RAGster
Marietta, Georgia
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The duct tape adhiesive will more than likely not withstand the heat and break down over time allowing it to shift out of position.
Glenn
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Bumpyroad
Virginia
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if you have a metal roof, why not just LineX it instead of rubber.?
bumpy
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NCHornet1
Mt. Airy, NC.
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I would get a roll of the rubber patch material. It is self stick and used to patch seems, I would apply this to all the seems in the metal roof. This would give you a double layer of protection at those areas.
Good Luck
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NCHornet1
Mt. Airy, NC.
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Bumpyroad wrote:if you have a metal roof, why not just LineX it instead of rubber.?
bumpy
Because that isn't what the bedliner material was designed for and there are far better products to use.
NCH
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Bumpyroad
Virginia
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NCHornet1 wrote:Bumpyroad wrote:if you have a metal roof, why not just LineX it instead of rubber.?
bumpy
Because that isn't what the bedliner material was designed for and there are far better products to use.
NCH
name one material that would be better. certainly not a temporary solution of rubber. why replace a defective product with another defective one.
I guess that is why they offer linex to line the inside of jon boats, etc. and they also will do a wooden RV roof.
bumpy
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NCHornet1
Mt. Airy, NC.
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Sorry Linex or any bedliner material is not made for roofs. Why don't you tear off your shingles off your house and spray it with bedliner? Rubber membranes have been used in commercial ( flat roof ) applications for years before the RV industry caught on. I am not here to argue with you, but I am a big believer in using the right materials and tools for a given job.
I also don't consider a rubber roof patch a temporary solution, it is the same material as the rest of the membrane. I also don't think RV manufacturers would warranty their rubber roofed RV's for 10-12 years if it was a temporary solution. Call your local linex dealer and tell him you have a plywood roof on your TT and you want him to Linex it for you and ask him how long he will warranty it for against leaks? Not very long!!! I just restored a 77 CJ5 and did the tub inside and out with bedliners, looks great and functions even better, but it sure wouldn't go on my TT.
Other choices for roofing materials on a Rv that would be far supperior to bedliners include vinyl membranes, aluminum skins and also fiberglass. All of these have been used and are currently being used on thousands of RV's. Again I am not here to argue with you, but I do want the OP to receive the best information possible.
Have a great day.
NCH
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Bumpyroad
Virginia
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NCHornet1 wrote:Sorry Linex or any bedliner material is not made for roofs. Why don't you tear off your shingles off your house and spray it with bedliner? Rubber membranes have been used in commercial ( flat roof ) applications for years before the RV industry caught on. I am not here to argue with you, but I am a big believer in using the right materials and tools for a given job.
I also don't consider a rubber roof patch a temporary solution, it is the same material as the rest of the membrane. I also don't think RV manufacturers would warranty their rubber roofed RV's for 10-12 years if it was a temporary solution. Call your local linex dealer and tell him you have a plywood roof on your TT and you want him to Linex it for you and ask him how long he will warranty it for against leaks? Not very long!!! I just restored a 77 CJ5 and did the tub inside and out with bedliners, looks great and functions even better, but it sure wouldn't go on my TT.
Other choices for roofing materials on a Rv that would be far supperior to bedliners include vinyl membranes, aluminum skins and also fiberglass. All of these have been used and are currently being used on thousands of RV's. Again I am not here to argue with you, but I do want the OP to receive the best information possible.
Have a great day.
NCH
I have checked one outfit, don't know if it was LineX or the other one, (which my alzheimer's won't let me remember now) and yes they do plywood surfaces. one of them uses heat, the other one doesn't and water in plywood was an issue with one.
and if you think that rubber roofs are "permanent" solutions, I must disagree there. IMHO a rubber roof was a stop gap measure foisted on the RV industry and I certainly wouldn't recommend anybody putting that onto an RV. Had two of them when I was buying motorhomes for price, never again.
and I thought that the OP did have an aluminum roof that he wanted to replace with rubber. or was that another thread. if LineX is perfect for lining the bed of a pickup truck, why wouldn't it be perfect, in white for covering an aluminum roof? they tout it for the inside floor of an aluminum jon boats, in fact the fella had a jon boat display in front of bass pro shops.
I went back and checked and the OP did currently have a metal roof that he wanted to cover. How does that application really differ from a pick up truck.
bumpy
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jeffk14
GA
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Linex, Rhino-Liner or any other commercial grade spray-on bedliner would absolutely be more durable against damage and just as waterproof as anything made specifically for rubber roofs. This would, however be completely dependent on the condition of the surface that it was applied to. If in solid shape, clean, structurally sound, etc., and if the spray-on material would adhere to the surface to start with, you'd be absolutely good to go. I would not, however use the stuff unless it was available in white or a nearly-white color. Black bedliner would cook the inside of an RV. The A/C could probably never begin to keep up.
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rareruby63
Raymond, Nebraska
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Back to my origional question... What's opinions on using DUCT TAPE to tape off area's that aren't smooth before we put down a rubber roof? We are 100% sure we are going to put the EPDM rubber over our existing roof, which is an old 1978 metal with seams. Someone years ago painted on some thick sealant, which has gotten brittle and crackly, mostly across the seams. I realize that eternabond would probably be best, but it's expensive. If the rubber is going over it, will the duct tape hold up, or do we just eat the cost and use eternabond???
BTW... the TT will be stored 100% covered in our pole barn when not in use, helping to prolong the life of the roof. We are going to inspect often and do any repairs with eternabond as needed. I just want to know about Duct tape under it to help smooth the rough parts out. Just the 4 seams between the front and back cap ends, which we ARE going to eternabond.
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