We're in the process of getting a new roof for our house, which was built in the 1890s. Most roofers are suggesting ridge vents, but here's the catch: our home lacks soffit vents. The only ventilation for the attic currently comes from the attic stairway and the door to the second floor. We've got gable windows, but they were replaced and shut many years ago. So, I'm considering either reopening those gables or installing gable vents instead of going through the hassle of cutting into the thick boards around the house. Given that we're a young couple trying to save some cash, should I go for the vents or just open the gables? There are six hood vents on the roof that will likely be removed either way.
3 Answers
I would need to check out the roof and attic first, because the best solution really hinges on your insulation and whether you can fit baffles for soffit vents. Ridge vents work well only if there's airflow from soffits; otherwise, you’re just making holes. If adding soffit vents isn’t within your budget right now, reopening the gables or putting in gable vents is a decent solution. At least that gives you some airflow instead of solely relying on the stairway door. Just know that a ridge vent needs inlet flow to be effective. Soffits feeding a ridge vent is ideal, but gable vents can work too—most importantly, avoid having no ventilation altogether!
You might want to chat with your roofer about roof top eave vents. They're generally affordable and can provide airflow similar to soffit vents, especially in homes with limited soffits.
If your new ridge vent can't access air from soffits or gables, it will pull air from the downstairs space, which isn't great for humidity control, especially in colder states, and can hike up your utility bills. Consider alternatives like shingle-over venting (e.g., Airvent Edge vent) if soffits won't accommodate standard vents. Remember that you want more intake than exhaust—it's a balancing act, so ask your roofer about the net free ventilation area (NFVA) for both intake and exhaust to make sure you're covered.