Trailer Roof Seam Mastic?

[TFucili]

I have a 2003 cargo trailer, and when I was up on the roof replacing the vent lid that the sun had eaten up, I also noticed that the mastic around the vent penetration, and at the edges where the roof meets the sides is beginning to deteriorate, and some of the screw heads are starting to reappear. I have owned this since new, so I know it is OEM and never fooled with. It is a gray material that appears to have been manually applied. Some have said it is actually tape, but it sure looks like it has been spread with a knife or trowel. Can this be touched up in trouble spots, or do I need to remove and start fresh? Any recommendations for materials?

 

[Killer223]

http://www.campingworld.com/shopping/item/dicor-non-sag-lap-sealant-white/32128

http://www.campingworld.com/shopping/item/dicor-diseal-sealing-tape-4-x-50-roll-white/42193

 

[phantomusa]

I've used some roof sealer from Lowes it's a tar like sealer that I smear on with a putty knife seals really good and lasts for years

 

[DavidC]

I have not used it but eternabond has a lot of ravings.

Dave

 

[BIGNASTY]

We used eternabond on our TT vents on the roof instead of the stuff that comes in the tubes like calking, That was years and years ago when the calking crap cracked. Our Son now has the 2005 TT and the Eternabond looks like the day we put it on WITH NO SIGN OF LEAKAGE!!

 

[mwilson]

If you are talking about the strip and screw style like I enclosed in the photo then I would put the Dicor self-leveling roof sealer to it....http://www.campingworld.com/shopping/item/dicor-self-leveling-lap-sealant-white/32125

Where it is just a cargo trailer it should be fine.

Stuff holds pretty good and not too hard to remove if need be.

 

[mwilson]

I did research the "Eternabond" and it does look pretty cool. I have a spot on the fifth wheel where the nose meets the roof that needs attention every couple of years and that looks like a good spot to try $50.00 worth of it on.

http://bobsguides.com/eternabond-tape.html

https://www.youtube.com/watch?v=ZYwxEX3SBK4

 

[DavidC]

Supposedly on eternabond's site there are instructions on how to remove if needed. From what I remember (not much) it invloves a heat gun and peeling it off. I also read to use their roller which is steel as the wood rollers do not work as well.

Dave

 

[DenverPilot]

Supposedly on eternabond's site there are instructions on how to remove if needed. From what I remember (not much) it invloves a heat gun and peeling it off. I also read to use their roller which is steel as the wood rollers do not work as well.

Dave

I used a cheap wooden rolling pin when putting it on a seam on our fifth wheel on a nice warm day, and no issues. Just work slow and methodical.