Box-Truck a bad idea ?

[amad]

Hey guys,
Planning to buy a box-truck Hino 300 or Toyota Dyna since a composite panel one is way outside my budget.

Is there a risk of condensation with box-truck body ? Can't find a lot of resources on how people deal with it !
I'm afraid of waking one morning and realizing all my the frame is rusting & wool is rotting :/

Was thinking XPS foam in the frame rib + 20mm foam on top of it and 8-10mm plywood with the minimum screw possible attaching it to the frame, since I think all the cabinetry will add a ton of strength between all the sides once finished.
Thanks !

 

[gator70]

There are REEFER boxes - Fully insulated, much better roof. You can find them cheap in truck salvage yards in decent condition

 

[gator70]

In the past, I found this one (14ft) in good condition in Fresno, CA for $3,000

 

[amad]

I'll see if something similar exist in New Zealand !

Thanks for the suggestion

 

[simple]

What materials are used to make the box portion of the truck in NZ?

Could you find a box truck with an aluminum framed box and use foam board?

Some box's in the US are also made with uninsulated composite panels.

 

[amad]

Most I've seen are stainless steel frame with corrugated steel sheet :

I think I would need to spray foam + foam board it, but the frame would make a lot of thermal bridging If I only insulate between the ribs :/

 

[SkiFreak]

I'll see if something similar exist in New Zealand !

Your profile says you are from Canada.

 

[amad]

Your profile says you are from Canada.

Will move to New Zealand in 3 month !
Currently planning the camper so I can build it as fast as possible once we arrive

 

[DzlToy]

Condensation on the interior walls of a camper or boat happens when warm, humid air inside contacts colder surfaces like walls or windows, cooling the air below its dew point and causing water vapor to form liquid droplets; this is exacerbated by activities such as cooking, breathing, or showering that increase indoor moisture levels, especially in cold external conditions. While it can occur on nearly all materials, it's more common and severe on highly conductive ones like metal or fiberglass that easily transfer outdoor chill indoors, though even insulated surfaces can be affected if insulation is poor or humidity builds unchecked. Ultimately, it's driven by a temperature differential without adequate humidity control or ventilation.

Keep interior surfaces warm, reduce humidity to below 50% and you will be much better off. Propane stoves/heaters expel moisture, as well. So, dry heating and cooking sources are preferred.

A cold glass of tea or soda sweats in the summer. A cup of hot tea does not, and neither does a glass of cold tea if placed outside in cold air.

EDIT: Thermally broken panels are your solution. Check out cam-locked freezer panels if you don't know what I am talking about.

 

[Ferjablito]

Will move to New Zealand in 3 month !
Currently planning the camper so I can build it as fast as possible once we arrive

There are no companies in all of New Zealand that manufacture parcel boxes or insulated containers; the manufacturing of a cell is very similar.

 

[DzlToy]

StyroMax is likely your best bet in that part of the world, unless you have the cash to call Unidan.