I recently bought a Uhaul truck and today some of my blankets were wet. I'm 100 percent sure that it doesn't leak. Checked it time and time again after rains. We have had a lot of frost, snow, and ice lately. I'm positive that it has to be condensation. I'm thinking of buying some of those 4X8 sheets of 1/2" thick foam. Not sure what it's called but it's made to go on the outside of houses. Pink insulation type foam. Anyway I was wondering if any of you guys faced the same thing and if so what did you do to fix the problem, is there a better way than what I'm talking about doing. Thanks.
My box van also get condensation that occasionally drips from the ceiling, as evidenced by damp blankets. I've thought about insulating but haven't got around to doing it yet. It seems to me the most effective way would be to spray urethane foam on the walls and lid. I think it would be difficult to get sheet foam to fit tightly, at least it would be in my van. For now, we just keep our blankets folded and stacked so only the top one gets wet.
Thanks for the info Duster. Actually my truck is set up where the panels would work good, that's why I thought of it. On mine both ends would have a ledge to go back in so I'd just have to cut it to width. We've been having a lot of snow and ice lately so I'm almost positive that that's the problem and that the foam will work. I think I'll give it a little while and keep a better eye on it to confirm it. Thanks again.
If the condensation is only on the ceiling of the box truck, you might talk to one of your builders and see if they have a contact of someone that can spray you some closed-cell spray foam insulation on it.
You shouldn't need much, I bet one pass will solve the problem for you.
Our shop gets a LOT of condensation from the roof, it has several places where the insulation has been removed to allow light to pass through the roofing panels (the fiberglass stuff). Fall and Spring, we get a lot of drips on stuff.
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