heat causing problems inside RV

[scarpi]

Hi all, our Phoenix summer temperatures are causing problems with the bathroom walls in our PW Excel. It is an 09, and the temperature inside the RV sometimes is 115 even with the fantastic fan vent open and the bathroom door left open. The RV sits in our driveway at home when not in use. Of course our summer temps here are HOT (100 - 115 daily)! So the inside of the RV cooks. The problem is that the caulking in the bathroom is separating, leaving gaps between the walls. The same thing is occurring on the bathroom counter top where it meets the wall. Also for those of you familiar with the PW Excel, there is a wall panel attached to the bathroom wall above the window that looks like a formica type panel. The edges are becoming completely separated from its backing due to the heat warping it. Here's my questions. First of all, is there a better caulking that I can use to recaulk the seams between the bathroom walls, and secondly is there a good adhesive that could be used to reattach the formica type panel where it is warping off the wall? Since it is the edges that are warping, I can't get behind the whole panel and would need to drip some adhesive into the gap and tape it shut until it cures. Thanks for any info......Don in Phoenix.

[Darrah]

Update time: its been a few months since I've used the GE extreme temperature silicone caulking in my Class B bathroom and it seems to be holding up very well.
So I would recommend it for those in hot areas.

[Darrah]

Ok, last Friday night I spent about three hours removing any and all of the old caulking that was loose or cracked.
Then Saturday morning I spent about two hours applying the new GE extreme temperature silicone caulking.
The new caulking was easy to work with and has a total cure time of 24 hours wich was nice.
Only took one tube to redo the bathroom and there was a little left over.....
So now time will tell if it well last.

[Sukiesmom]

Thank you. Look forward to your report 🙂

[Darrah]

Ok, went to the home store last night and picked up some GE extreme temperature silicone caulking to redo my bathroom with.
I'll let everyone know how well this work's or not...

[mlts22]

I don't know if the HOA supports it, but I'd look into an extended height carport. That way, you can not just get the sun off the Excel directly, but have the ability to open a roof vent and run a fan (I'd probably use a box fan) to keep the air circulating inside.

If a carport is a no-go, I'd look at a Maxx-Aire cover for the ventilation cover, a Fantastic Fan upgrade (preferably to a model with a thermostat), and use that to keep air moving. Yes, both of these cost electricity, but this is definitely a lot cheaper than constantly running the A/C.

[Darrah]

I know this is an older post, but I'm having the same problems in my Majestic Tour after this past winter.
So I was wondering if anybody found a better chulking? or any other solutions to this problem?

[scarpi]

I'm not so sure it is just a heat problem because as one person responded, he lives near the coast and has similar problems with his PW. Although I am sure that the high heat only makes the problem much worse. I'm not in a rush to fix the issues, I will eventually get it repaired myself after gathering information on the best way to do it. You see, the interior side of the exterior wall in the bathroom is actually separated from the caulking on the wall it attaches to next to the toilet. The wall actually moved about 1/2 inch from its original position. I can recaulk it, but it would not be in the original place it was. Of course that might not really matter much. There is no way to put the wall back where it was when new. Just kind of a shame that you walk into this beautiful RV and see cracking caulking, separated walls, a formica panel coming off the bathroom wall, and a warped ceiling near the front top cabinet near the cab. It is only an 09 with 7000 miles on it. But keeping my perspective, it is not a big problem in life, it is only a "thing" that can be repaired. Good health to all and thanks for the tips.....Don.

[drsolo]

you might want to talk to heating/furnace installer. they may know of caulk that works better. Have you dont an amazon search for high temp caulk?

[Arizona_Kid]

scarpi wrote:
For your info its been a few days since I emailed PW about the heat affecting the interior materials in my RV. Still no response. They may not respond and I don't expect them to do anything about it. It is out of warranty being an 09. But it would be nice if they knew of a better caulk to use that withstands high temps. I will wait before I attempt to fix the caulking to see if they have any suggestions on a product. If not, I'll check with my RV service center. I'm sure they can recommend something.

Call them, Email will be very slow.

[Sukiesmom]

Appreciate your response. Good luck!

[scarpi]

For your info its been a few days since I emailed PW about the heat affecting the interior materials in my RV. Still no response. They may not respond and I don't expect them to do anything about it. It is out of warranty being an 09. But it would be nice if they knew of a better caulk to use that withstands high temps. I will wait before I attempt to fix the caulking to see if they have any suggestions on a product. If not, I'll check with my RV service center. I'm sure they can recommend something.

[Sukiesmom]

Thanks. I look forward to hear from you.

[scarpi]

Interesting, judging by what you say, it sounds like it is not just a problem caused by heat. Maybe incompatible materials used? I emailed Pleasure Way about my problem but I don't expect them to do anything since the RV is an 09. But I'll let you know if they come up with a solution such as better caulk and better adhesive for that formica panel that is coming off. Don.

[Sukiesmom]

We live in S Cal, near the ocean and does not get too hot even in summer. However, our 2006 Excel still has the same problem you are facing. Tried adhesive caulking and it was good for a while but eventually it still pulled off, and with some of the "wall paper" with it too. I would not use adhesive caulking again.