- Gotta say, I’m not totally convinced mixing vent types is always a problem.
- My last house had both gable and ridge vents—never noticed any major issues, even through some rough winters.
- Maybe it’s more about making sure you’ve got enough intake at the soffits? Without that, seems like airflow gets weird no matter what vents you use.
- Cutting into trusses freaks me out too, but sometimes adding a couple roof vents (without going overboard) can help balance things out.
- Every roof’s different... what works for one place might be a mess for another.
Mixing vent types gets debated a lot, but honestly, I’ve seen plenty of roofs with both gable and ridge vents that function just fine—especially if the soffit intake is solid. You’re right, airflow balance is everything. Over-ventilating can be just as bad as not enough, but sometimes a couple extra vents really do help. Every roof’s got its quirks... what matters most is making sure the air’s actually moving through, not just in and out of the same spot.
Curious if anyone’s actually measured attic temps before and after switching vent setups? I’ve got a couple buildings with mixed vents and honestly, haven’t noticed much difference in energy bills. Is it more about humidity control than temperature in some climates?
I’ve got a couple buildings with mixed vents and honestly, haven’t noticed much difference in energy bills.
I’ve actually checked attic temps before and after swapping from box vents to ridge vents on a couple jobs, and honestly? Didn’t see a dramatic drop in temp either. But here’s the thing—where I am (humid summers), what made the real difference was moisture. I’ve seen less mold and fewer musty smells after improving airflow, even if the energy bills didn’t change much. Sometimes it’s not about cooling the attic as much as keeping it dry.
That's something we don't have much of an issue in SoCal....moisture!
