Bubbles on Roof

[kittlecat]

I have a 2015 Rockwood Ultralight 2608WS. I am regularly on the roof cleaning, inspecting caulk, seals and everything else. I went up on the roof today to check the TV antenna and found several bubbles have popped up under the roof lining that were not there 2 weeks ago. I see from several earlier posts that I should NOT pop the bubbles. What should I do?

I'm concerned as I'm out of warranty and have previously had a TT totaled by my insurance company for water damage. I have absolutely no signs of water leaks anywhere in the TT at this point, and no reason to suspect any leaks. I appreciate any helpful input. I'm camping right now and have never uploaded photos to a post before but can take pics tomorrow and see if I can get them uploaded. Thanks.

[CincyGus]

Most likely just glue released from the rubber membrane. Continue to monitor and caulk around cutout for roof top appliances, cuts and scrape that worry you and the seams in front, back walls and sides. I have a few small bubbles on my 1 year old camper but I don't see them as anything to be concerned about at this point, just something to keep an eye on.

Upload pics if you can so we can be sure we are not underestimating but I believe you will be fine.

[sunnman]

Mine did the same. Was told by dealer (and in here) the heat and humidity changes can cause that and they will come and go

[Lifestylers]

Famous last words from dealers. No worries...Be happy...
I am sorry, not really into there is no concern. No matter what, it ain't right.

[kittlecat]

Update: I haven't added any pics as it appears some of the responders are right, at least for the moment. When I went back up on the roof yesterday, the bubbles were gone. The heat had also eased, as well as the humidity. I'll take a watch and see approach from this point although I'm still concerned what to do if/when the bubbles return and if/when they become larger, as that seems to be a common theme.

[Riccochet]

Air, when heated, expands. Your roof membrane is air tight. The glue holding it down does not provide 100% coverage. So, the expanded air has to go somewhere. Create bubbles under the membrane.

Perfectly normal.

[TheWolfPaq82]

Originally Posted by Riccochet

Air, when heated, expands. Your roof membrane is air tight. The glue holding it down does not provide 100% coverage. So, the expanded air has to go somewhere. Create bubbles under the membrane.

Perfectly normal.

NO !!! Only normal on newer RV's lately. My 2007 Jayco, when I sold it in 2017...NOT ONE SINGLE BUBBLE. My 2018 Cherokee, half a dozen bubbles showed up in the first 6 months. Poor quality work when putting the membrane down. My sons 2018 Jayco (bought in 2017) Still not a single bubble and the membrane looks perfect.