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Condensation

Mainiac Mat

Well-known member
Joined
Sep 2, 2020
Messages
409
Location
Maine
Hey gang,

Though my 26x30 garage build isn't done yet, I've occupyed and used it since the OHDs were installed this past fall. The garage is seeing it's first Maine cold snap and I'm seeing quite a lot of condensation on the windows each morning.

Source of moisture is primarilly snow melt off cars.

I guess the good news is that it's condensation and not frost. So the ambient temps are still above freezing. But I'm concerned about rust on tools I keep out there.

What's the best way to deal with this kind of moisture??

Pertinent construction details:

  • Full frost wall foundation with 6 mil poly under the slab
  • Ceiling is insulated and 70% covered with 5/8 sheet-rocked. Walls are 75% insulated with no rock on them yet. Insulation is kraft faced R-22 fiberglass.
  • Heat source is a 60K BTU HotDawg, which I only run when I'm working out there (evenings and weekends).
  • I did not put plastic vapor barrier in the ceiling... as the insulation is stapled up flat and tight to the bottom truss cord.
  • Four double paned Anderson windows and single pane transom windows above OHDs.
 
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Showkey

"MEMBER EMERITUS"
Joined
Aug 9, 2014
Messages
8,638
Location
Wausau WI
Last edited:
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mobetta

Well-known member
Joined
Feb 10, 2010
Messages
370
Location
twin cities, mn
Finish your insulation.

Kraft face is a vapor barrier of sorts- the more moist it gets the less vapor is allowed through.

I find Its helpful to let the cars sit outside for 15 minutes before pulling into the garage- a majority of the snow turds will fall off in the driveway, bringing less moisture into the building.
 
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M

Mainiac Mat

Well-known member
Joined
Sep 2, 2020
Messages
409
Location
Maine
Very popular topic 20 threads in the last 6 months they take various tracks but the theme is similar and so are the solutions or non solutions.

Thanks for the links.... I searched "condensation" and got a long list of totally unrelated threads.
 
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