Success insulating cabinets?

Slide toppers work well for us as most of the cabinets are in the slides.

Speaking of wine cellar, if you can increase the thermal mass of the insides of the cabinets, that will slow the temperature changes a lot. Pack them very full :-).

Thanks for all the replies. Got some temp gauges setup and yesterday i saw around a 7 degree difference. At 1:30pm the trailer temp was 78F and cabinet was 85F. The sun passes over and shines on the other side of the trailer. Moved the cabinet temp gauge to that side and saw 89F in that cabinet at 7pm. Wasnt even a super hot day yet.

Think i want to go for the wine cellar approach versus venting because of the dusty conditions here. Im hoping the cabinets can remain in the center of the hot and cold spikes. Instead of the cabinets getting hotter than the trailer itself.

Vents at the bottom and top worked for me. I should double the size.

Unless you are reducing the temp inside of the area none of these things will do any good. It may slow the transfer of heat but that's it!

Get this type of material--in 1/2 inch thickness:



https://www.homedepot.com/p/SilveRboard-24-in-x-1-in-x-48-in-R5-Radiant-Acoustic-Insulation-Kit-STC-19-5-Piece-SB12AKIT/205975329

In theory, the little air space between the outside wall of the camper and the reflectix will be hotter than the air space on the other side of the reflectix, inside the cabinet. I'd be surprised if it made a huge difference, though.

I have a similar problem in the winter. I get a lot of condensation on that cold exterior wall, because of the reduced airflow inside the cabinets. I think what I'm going to do is, 1. Make new cabinet doors with an outer frame of wood, and the panel portion is screen. And, 2. Make boxes that fit the inside of each cabinet, including the curved outer walls, but a bit smaller, so there is about an inch air gap between each inner box and the original cabinet.

I'm hoping that if I do both these things, I can put my clothes in the cabinets and they won't get moldy.

If I were concerned about food storage, I think I would do the grill doors and some sort of thin insulation, and not the inner boxes. Reflectix would work.

I think the grills are important, so that cool air from the inside of the living space can get into the cabinets.

Okay I understand now that it's Reflectix. That's what I use for my windshield cover and it comes in sheets. Does it like repel or reflect heat from inside the cabinet? I don't understand how a reflective sheet of material will block heat from entering a cabinet when the material is placed inside the cabinet.

far better to use the foam board that has silver foil fastened onto it.

The grill idea is interesting, pianotuna.