condensation on overhead door

[rusty1606]

hi guys, ive been checking out this site for a long time and this is my first post. just want to say i love this website. so awesome! all you guys seem great. anyways ive recently bought a house with a double detached garage. im in canada and its about -20 celsius right now. im experiencing alot of condensation on the window as well as on the overhead door. ive read on here about the whole dehumidifier idea, not sure i want to go that route. but im wondering if opening up the garage attic access door would help remove the moisture and provide some air movement? the garage was built in 2006. no heat. insulated walls i believe, and drywalled. can someone give me some advice on this?? thanx
jason

 

[kbs2244]

Unvented Heater?
If so the correct thing to do is get a vented heater.
As a fix until then, open a door or window a crack.
The "wasted" heat will take the humidity with it.

 

[Gary S]

Condensation will occur on the poorest insulated parts of a building when the temperature outside is colder than inside. Windows are the worst for this. A single pane of glass gives you about an R1. A thermopane with two panes of glass and a sealed air chamber between gives you around R3. A high priced thermopane with 3 panes of glass and two sealed air chambers is around R5, so the best window is about equal to an uninsulated wood wall.

If your door is condensing, it is for the same reason. An overhead door with no insulation won't even likely give you R1, so your nice R15, R20, or R30 walls are not able to do their job.

Concentrate on insulating the areas where condensation is occuring, and you can improve it.

 

[Liberty]

The unvented gas heat is a big culprit.
Shrink wrap type of window insullation sticks on and shrinks with hair dryer. Some form of insulation on the door. Reflectix secured to the door is what I plan on doing to our doors.

 

[Sureshot]

The least insulated area as already mentioned. A ceiling fan helps move the air and keep the windows dry. Also squeegee away snow melt and such to not introduce moisture into the building.

 

[Andamo]

Where does it say he has heat in the garage ?

 

[rusty1606]

I have no heat in my garage.just insulation and drywall.I'd like to solve this condensation problem before I try to mug dnd tape the garage next summer. Would opening the attic aess help with my problem? I don't know who or whatEto do about this.

 

[kbs2244]

Opening the the attic acess a little will help if the attic is vented.

The humidity will be coming from slush and such melting from the heat as the car cools off.

Again, the humidity will follow the heat untill it get to something it cannot get through.
Then it condenses.

 

[Herb67SS]

Just realized, I don't know jack about living in Canada ;-)