Garage ventilation

[47WDXPW]

I was at large car show this weekend and a guy was selling what looked like a very well engineered car bubble system PVC plastic with a small blower the same as used on fair sized computer no heat was added and air flow was constant air flow leaking a pre determined amount through the zippers claiming a $1.50 a month for running the fan. So I asked about humidity he claims same inside as out side of bubble and never any condensation could this same principle apply and work in a 30x48 garage ?

 

[47WDXPW]

The bubble is a tent of sorts for storing a car its set up inside a garage and the air from inside the garage is blown through the car "tent"

 

[bdbecker]

Condensation occurs when warm, humid air cools and loses its ability to hold water. If you use the bubble in an unconditioned garage, you will be pumping cool air into the bubble and the temperature of your vehicle will still be cool. When spring rolls around, warm humid air will be pumped across your cold car, causing condensation to occur. No getting around physics.

 

[SGKent]

what is the benefit unless the air being sent inside the bubble is filtered? The only way I can see a bubble work well for a car would be if one put dry nitrogen into it or something for storage to reduce oxidization.

 

[47WDXPW]

When a garage is insulated and kept above dew point is ventilation needed ?

 

[bdbecker]

No... that line from the salesman about no condensation is BS. If warm, humid air comes in contact with a cold object, condensation will occur - bubble tent or not. Fans can help reduce the level of condensation because the air is constantly circulating, which gives it less time in contact with the cool object, but a certain level of condensation will occur.

 

[47WDXPW]

Thanks

 

[aventino68]

When a garage is insulated and kept above dew point is ventilation needed ?

so it would be way better than heating but allowing it to cool below dew point but there will always be some moisture in the air?

 

[Kevin54]

No... that line from the salesman about no condensation is BS. If warm, humid air comes in contact with a cold object, condensation will occur - bubble tent or not. Fans can help reduce the level of condensation because the air is constantly circulating, which gives it less time in contact with the cool object, but a certain level of condensation will occur.

I got into a big argument with a contractor about our vinyl replacement windows and condensation. He tried to give me a line of ******** that our house was too humid causing the condensation in the winter. And he even produced a paper from the manufacturer saying that if you have condensation, it's the fault of the homeowner. The problem is the seal on the bottom of the window is nothing more than a piece of felt, and you could feel a little bit of air coming in at the corner of the windows. The same place the condensation occurred. We finally got it straightened out, but it was a real mother to get it done.

 

[Tracs]

https://www.calcarcover.com/product/car-capsule-the-original-car-storage-bubble/684