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re: Amazing the difference an attic vent makes...
Posted on 7/28/26 at 6:37 pm to Tarps99
Posted on 7/28/26 at 6:37 pm to Tarps99
quote:
My big issue has been condensation on my ducts.
Was researching water dripping from one of my supply vents that’s nearest the patio door. Gonna caulk around where the ceiling meets the box and cross my fingers but this video addresses what you are talking about. Also addresses the dangers that can come from making the attic cooler like the OP is doing.
Posted on 7/28/26 at 7:09 pm to Juan Betanzos
quote:
And costs? What kind of budget are we looking at to spray foam an attic for 3000 sq ft (avg) and install exhaust fans???
You don’t need exhaust fans if you have spray foam.
For attic only for 3000 feet, you are looking at around $6000.
I just had 3800 sq feet done for $6800.
Posted on 7/28/26 at 7:21 pm to Hangover Haven
We have a ridge vent, but I think we need a couple more sofit vents (or I may need to check the current ones to see if there is any blockage).
Posted on 7/28/26 at 7:34 pm to Rex Feral
This
Posted on 7/28/26 at 7:35 pm to Hangover Haven
When it froze last year and snow was everywhere, you could tell who had attic insulation and who didn’t
All the roofs with terrible insulation had very little snow on them
All the roofs with terrible insulation had very little snow on them
Posted on 7/28/26 at 7:54 pm to Tarps99
quote:
My big issue has been condensation on my ducts. It is well past time for them to be replaced. Ceiling is dripping with condensation at times.
You risk trapping the moisture if you caulk and causing mold. Have an old house with the same issue.
Got a heavy duty dehumidifier that sits in the hallway by the intake and runs around the clock.
With the dew point being what it is every day and not having the best insulation or sealed house it’s been a life saver
Posted on 7/28/26 at 7:55 pm to WestSideTiger
quote:
Also addresses the dangers that can come from making the attic cooler like the OP is doing.
How about telling us so I don’t have to watch twenty minutes please
Posted on 7/28/26 at 8:53 pm to fightin tigers
quote:
Not if your attic is properly ventilated.
If it were properly ventilated wouldn't the air already be moving.
Isn't that basic thermodynamics?
It's about air exchanges. With a powered vent fan, you need less exit space. The fan will have a CFM rating; you need the appropriate free input area to accommodate the flow. You can achieve ventilation with a passive system, but you need more free area than you would with a powered vent. If your roof allows for the space, it's not a bad solution, maybe even a preferred solution. Just not my preference.
Posted on 7/28/26 at 10:00 pm to Sweep Da Leg
quote:
How about telling us so I don’t have to watch twenty minutes please
I was just helping him with a link. My problem isn’t the same as his so I skipped through a bunch of it and he didn’t give any solution to the vent dripping water. He only explained why which is when an outside door near a vent gets opened all day long. He said that’s why restaurants always have rusty vents.
My issue isn’t with attic conditions affecting the system or ducts. It’s localized to air coming through the door rising to the vent.
But his solution to system or ducts sweating was something like if you make your attic cooler by sealing it then it could cause moisture buildup by trapping it or make it worse unless you also run a dehumidifier up there. Seemed complicated.
If anybody has my problem this is the solution I’m trying. I don’t have a mold problem like his and his is coming from attic air seeping in but mine is coming from outdoor air through that door. This may not help my issue but it can’t hurt. I’m also trying to run my ceiling fan faster. It only happens a couple months out of the year when the inside air is colder than the dew point and if that door is used a lot but it’s really annoying because the water drips on the sofa.
Posted on 7/28/26 at 11:01 pm to Hangover Haven
What type of unit thing do you have?
Posted on 7/29/26 at 6:21 am to Hangover Haven
quote:
Usually keep it set at 73,
My thermostat doesn’t even see the 70’s
68 all day…drops to about 66 at night.
Have a two stage Gree unit and it’s money.
Posted on 7/29/26 at 7:04 am to WestSideTiger
quote:
Gonna caulk around where the ceiling meets the box and cross my fingers but this video addresses what you are talking about.
That’s a tough video to watch. Rather than simply stating what the viewers need to know, he keeps asking questions to people in the room and hopes someone else answers the question.
Reminded me of all the inefficient teachers I’ve ever had.
Posted on 7/29/26 at 7:43 am to WestSideTiger
quote:
it’s really annoying because the water drips on the sofa
Same issue for us on the bed in two rooms. Sucks. Thanks for the response
Posted on 7/29/26 at 11:08 am to Willie Stroker
quote:
That’s a tough video to watch
That’s YouTube now. Stretch it out and make you wait till the end. That video also gave me some insight into my dickhead A/C guy
Posted on 7/29/26 at 11:21 am to Hangover Haven
The real play is to get a solar-powered one so you don't have to replace it every five years.
Posted on 7/29/26 at 12:14 pm to Hangover Haven
quote:
Parents had one in the house I grew up in, first cool fall day, my dad would open the windows and turn on the attic fan, it was awesome…
My farm house has one. Its giant, like 6' x 6'. Its in the middle of the house. If its running and all the doors and windows are closed you can barely open a door from the suction. And when you do open a door you have to be careful cause it will slam it shut like a door of a condo at the beach.
We dont use it anymore but when we did it would suck papers off a table.
The house was built in the late 1800's and updated several times. We had it rewired (from knob and spool) in the early 80's and added central AC so we dont need it, but its still there.
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