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dig_dem's avatar
dig_dem
Explorer
Mar 11, 2015

100% Silicone roof coat a good idea?

Hello All,

New here. I am in the process of restoring an old 25' Coachmen and am currently working on the roof.

The roof was so weathered that I elected to strip it entirely down to the bare galvanized sheet metal. Now I am looking for what to put back on top.

I have Henry 289 and 587 elastomeric that I was planning on coating the trailer with but I have also considered going EPDM (either a roll or in liquid form.) Just recently I was offered some 100% silicone roof coat (like Henry 887 Tropi-Cool)for a fraction of what it normally sells for.

I have read horror stories about using silicone caulking on a roof but I can't find anything about an entire roof coat of silicone. Has anyone tried it on an RV? I have been told that the silicone makes an absolutely awesome roof coat that will last for decades, but I am concerned about how readily it can be repaired in case of damage.

Does anyone have any experience with silicone roofing? Can it be repaired? Is it even a concern? Should I even consider going silicone?

Thanks for looking everyone.
  • I have used the Henrys 289 and it worked well.

    The new option many are using is a Rhino Type Lining material. I wondered if the Herculiner Roll-on you can get at autoparts stores would work. There have been a couple of posts in the past where folks have used it on their roofs with success.

    There is a two step process from Dicor that works really well.

    I know the tropicool has been used on Mobile Homes for years but I don't know how it would hold up to movement of an RV.
  • No experience with silicone roof coating - but silicone tends to be problematic on RV's and I would suspect that down the line if repairs are needed your going to regret having a silicone roof.

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