What is my roof material?

[ultrarider]

Hello all, There is probably an answer to my question somewhere on this forum, but I can’t find it for the life of me.
I have a 2018 16XRB and want to apply some Dicor caulking around the skylight. I’m not sure what roof I have, which Dicor caulking I should use, or if it even matters. I just want to make sure I get it right.
Thank you

[Grumpy]

DiFlex II TPO by Dicor.

[craigav]

I think Dicor would work for all roof types, however I would suggest you check into Eternabond tape instead. ~CA

[ultrarider]

Okay- I have determined that my roof is TPO. (It’s white on both sides). So using the Dicor self leveling sealent is okay? The sealent listed on the Dicor website states, can be used for EPDM, TPO, and Pvc. However, the same product listed on Amazon, states for EPDM rv roofs. No mention of TPO. It could be that the TPO is newer material, and Amazon hasn’t updated the description?

[RogerR]

I agree with craigav that in the long run Etearnabond tape to either go over or replace dicor caulk is the best way to go. Last year I removed most of Dicor and discovered an invisible bubble with nothing under a quarter size spot and a missing screw on the front cap plus one that was rusted while under the Dicor.
I got most of the Dicor off with heat and a plastic scraper and replaced it all with tape.


But I will still inspect it before every trip and each spring.

[dxrobertson]

Dicor lap sealant, make sure self leveling for roof; that will settle into the voids. There are various product numbers, due to color and self level, etc.

I have a tube labeled 501LSW right here. Its self level, white, and states for EDPM, TPO, ... (and other).

[ultrarider]

Thanks everyone for helping me out
I Appreciate it!