Condensation

[fishspike57]

I have a question on condensation. I have condensation on my insulated garage door and service door. I get it’s cold air meeting warm air but my question is this Should I point a fan on the doors? I do have 2 ceiling fans running all the time. The doors are not condensing on the panels but where they meet. Temps have been below 0 and I keep the shed at 45 unless I’m in it

Thanks for some info

 

[nadogail]

Probably would not help you very much.

 

[58Yeoman]

What kind of heater are you using to keep the shed at 45*? Any non-vented appliance will put a lot of humidity in the air. I run a dehumidifier in the summer to get rid of humidity. If you're keeping it at 45*, you should be able to run a dehumidifier all winter. Can your panels be leaking that the ice is building up in those places?

 

[Showkey]

Dehumidifier will spend more time in defrost mode than actually working. Costing a small fortune and be very inefficient.

Warm the building or allow the building to cool more. The problem is similar to the iced tea on warm humid summer day. It condensates or sweats......insulate the glass, warm the glass or cool and dehumidify the summer air. Same for the building on larger scale.

Monitor the building temp and humidity levels. Heated 30-40% relative humidity would be goal. Add more Heat the building and the humidity levels will drop. Assuming you have VENTED heater. Unvented heater ( as mentioned) is the problem and not a solution and is lost cause as far humidity and condensation.

Are many other threads on the topic.

 

[TractorJeff]

Sounds like cold air leaking in between the panels (where they meet) which will condensate with the wet warm air inside.
First question, why is the air "wet" on the inside?
I keep my shop at 45/47 when I am not out there.

 

[anythingyoucanimagine]

What type of heat? Usually when it is that cold humidity is down. More insulation will always help.

 

[PWC Repair]

Thinking you could buy felt sheets and cut then in strips, then glue them to one panel edge. Should be thin enough to not bind and keep that air from infiltrating.

 

[fishspike57]

Thanks. I have a Mr Heater 80000 btu vented out side. When I pen the garage door it drips off the door. Will have to do more research

 

[Showkey]

The other wild card........are you bringing in cold slush and snow laden vehicles in daily ?

Obviously that would be bringing in gallon of water per day. Humidity levels would easliy be in the 60-80% levels. Almost impossible to manage that amount of moisture .......floor drain or squeegee the floor daily. I am floor squeegee club at least 3-4 times per weekIn the parking garage. The shop where snow and water in not coming the indoor humidity is below 38% in winter.

 

[fishspike57]

I think that is a large part of it. We had 20 plus inches of snow and was in and out with truck and snow blower. Will have to do a better job brushing them off. I thought the ceiling fans could keep up

Thanks