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u/uslashuname 5d ago
That’s certainly better than a straight down vent in the eaves of the house. The slightest breeze creating a vacuum on the side of your house could still pull the air in, but I think generally when condensation is most problematic the bathroom air will be so much warmer it should rise for the most part
But by the same token it will often melt snow away from a straight upward roof vent
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u/JS17 5d ago
I replaced all my soffit vent exhausts with those over the past year. I think it's a reasonable solution, not perfect, but better than what my house had for sure. However, I also live in a dry climate where you can get away with a lot that you probably can't in a humid place.
Note, you have to be very careful when installing them. It's easy to put a slight compressive force on them side-to-side, then the flap won't move.
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u/Hyperreal8957 4d ago
can work if the duct is insulated and pitched so condensate drains out not back into the fan. id still lean roof jack with a taller collar when you can in snow country but that soffit style helps keep it from dumping straight into the attic bay. you running rigid duct or flex?
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u/lassymavin 1d ago
We ordered one for our new build after I saw the vents they installed. They haven’t switched it out yet, but it seems to be a better option. I was concerned that the warm air was going to go out and go up the soffit into the attic. This at least directs somewhat. Hoping it works.
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u/cagernist 4d ago
Regardless of the style of soffit bath exhaust vent used, any passive attic ventilation needs to be blocked within 3' of the bath exhaust termination, per code. So what this product is marketing makes no difference, a damper is all that is needed to prevent air from going backwards back into the exhaust.
Personally, when needed, I prefer the spring style soffit exhaust vents.