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Old 07-23-2011, 12:56 PM   #1
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Condensation inside ceiling of cathedral ceiling


We have a large living room (18x25) with a cathedral ceiling. Lately, we have gotten brown stained drips along the slanted ceiling from the center beam (fake) down, and the beam is getting wet and warped. We are in the middle of a very hot and humid summer (110 heat index) so I figured it was related to condensation between hot humid attic air and cooled indoor air. I've read about venting for cathedral ceilings and think a ridge vent added to our current attic vents might help. What's unusual about our house is that the cathedral ceiling runs perpendicular to the angle of the roof. Any special considerations for this situation? Will the ridge vent likely fix the problem?

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Old 07-23-2011, 05:07 PM   #2
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Condensation inside ceiling of cathedral ceiling


Sounds to me like there is insufficient insulation or venting or both. Would you explain this for us? Or pictures.
"What's unusual about our house is that the cathedral ceiling runs perpendicular to the angle of the roof."

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Old 07-23-2011, 06:58 PM   #3
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Condensation inside ceiling of cathedral ceiling


You could also have a leak.
I think it’s time to poke your head up in the attic and take a look.
As mentioned, post some pictures.
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Old 07-24-2011, 10:05 AM   #4
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Condensation inside ceiling of cathedral ceiling


The line of the apex of the roof on our ranch style house runs end to end, as you would expect. But the line of the apex of the cathedral ceiling runs from the front of the house to the back. The ceiling area in the photo is at the back, just in front of a brick fireplace. I'm pretty sure that the brown streaks are stain being leeched from the beam. The other photo shows center of room where beams meet, and shows how the beam that is moist is warping. There is a gap between the beam and the actual ceiling at the end, and the air coming through the gap is very hot. Hope this clarifies my original post. Thanks for any suggestions.
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Old 07-24-2011, 10:22 AM   #5
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Condensation inside ceiling of cathedral ceiling


Do you have access to the space above that?
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Old 07-24-2011, 03:17 PM   #6
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Condensation inside ceiling of cathedral ceiling


There is an attic, very difficult to get to, so I haven't yet, but know I will have to get up there once the weather cools a little.

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