I’ve seen a lot of homes where sealing up the obvious leaks helped, but there were still cold spots or drafts—usually from spots folks don’t expect, like electrical outlets or attic hatches. Sometimes, even after you think you’ve got it all, those little gaps behind trim or in corners can make a difference. Blower door tests can seem like overkill, but honestly, they’re the only way to really know what’s going on. If your temps evened out right away, you probably hit the main culprits. But if you’re still noticing uneven rooms, it’s worth checking those less obvious spots. It’s not overboard if it solves the problem.
Blower door tests can seem like overkill, but honestly, they’re the only way to really know what’s going on.
I get the point, but honestly, before diving into all that, I’d double-check your roof ventilation. In my experience, uneven temps and drafts sometimes come down to poor airflow in the attic, not just leaks or gaps. If your vents are blocked or undersized, you’ll get cold spots no matter how much you seal inside. Worth a look before spending on more tests.
I’m with you on checking the attic vents first. I had a similar issue last winter—cold spots in the bedrooms, even after sealing up every gap I could find. Turned out, a couple of my soffit vents were packed with old insulation and dust. Cleared those out and things evened up a lot. Still, I wouldn’t totally write off blower door tests if you’re chasing drafts you just can’t pin down... but yeah, sometimes it’s just airflow up top causing all the headaches.
- Had no idea attic vents could cause so much drama until I bought this place.
- Thought I was being clever with weatherstripping, but nope... still had that one bedroom colder than my ex’s heart.
- Ended up poking around up there and found a squirrel’s worth of insulation jammed in the soffit vents. Cleared it out, and things got less weird.
- Anyone ever try those solar-powered roof fans? Worth it, or just another gadget to break?
- Had a similar situation with blocked soffits—crazy how much that messes with temps.
- Tried a solar roof fan last summer (midwest, lots of sun). It did help keep the attic cooler, but honestly, the difference inside was pretty minor.
- Maintenance is low, but if you get a cheap one, they can get noisy or just quit after a couple years.
- If your attic’s already got decent passive airflow, I’d say it’s not a must-have. But if you’re desperate for extra cooling and don’t want to run electric, it’s not the worst gadget out there.
- Just double-check your venting isn’t still blocked—sometimes that’s all it takes.