Most “roof leaks” I get called for end up being condensation or ice dam issues from poor insulation or ventilation, not the roof itself.
Yeah, that one got me last year. Thought my new composite was leaking, turns out it was just my attic sweating like it ran a marathon. I cheaped out on insulation—big mistake. Composite’s been solid otherwise, but you’re right, it’s not totally hands-off. I still check those gaps after every freeze-thaw rollercoaster.
my attic sweating like it ran a marathon
That’s the classic sign right there. I see this all the time—folks blame the new roof, but it’s really the attic setup working against them. Composite’s great for durability, but if the insulation or venting isn’t dialed in, you’ll get those drips and stains no matter what’s up top. I always tell people: check for blocked soffit vents and look for damp insulation after a cold snap. Sometimes it’s just a couple of batts out of place causing all the trouble.
Not saying venting and insulation aren’t big factors, but composite tiles themselves can make attic moisture worse if they don’t “breathe” at all. Some of the newer composites trap more heat than folks expect—especially in milder winters where the attic never really cools down. I’ve seen more stable humidity when people go with clay or even metal, since they don’t lock in as much warmth. Just something to think about if you’re still having issues after tweaking your vents.
I get what you’re saying about composites holding heat. I switched to a recycled rubber tile a couple years back—looked great, but my attic definitely felt warmer, even in spring. Had to add a solar vent just to keep the humidity in check. Clay was cooler, but I wanted something “greener.” Still not sure if it was the right call...
I totally get feeling unsure after making a big switch like that. I went with composite tiles last fall, mostly for the eco angle too, and honestly, I’ve been second-guessing it every time the attic feels stuffy. But I figure, there’s always going to be some trade-off, right? At least you found a way to manage the heat with the solar vent. Sometimes I wonder if the “greener” choice is always the most comfortable one... but at least we’re trying to do the right thing. That counts for something.
