Did you know shingles get layered like fish scales?

That’s a really good point about the whole system needing to work together. I’ve always wondered if powered attic fans are just a band-aid for bigger ventilation issues, especially if the intake isn’t set up right. I put in ridge vents on my last house (steep roof, not much snow) and honestly, it seemed to keep things cooler without any moving parts to break down. But yeah, I’ve heard stories about snow blowing in through ridge vents too—makes me nervous since I’m thinking of switching over. Does anyone actually see moisture problems from that, or is it more of a rare thing?