I just went through my first winter with a new (to me) house, and I’m still figuring out what’s actually necessary for roof upkeep. I did a bunch of research before patching a small leak last fall—ended up using synthetic underlayment because it was lighter and honestly, easier to handle solo. I get the appeal of felt, especially if you’ve had good luck with it, but the synthetic stuff felt safer for me since I was up there alone. Not sure if it’ll hold up as well long-term, but so far, no leaks even after a couple heavy rains. Guess I’ll find out next storm season...
Synthetic underlayment’s definitely easier to work with, especially if you’re up there alone—felt can get heavy and awkward fast. I’ve seen synthetic hold up pretty well, but it can get slippery when wet, so just a heads up for next time. Did you check if the leak was from a nail pop or flashing? Sometimes those sneak up on you after a rough winter. If you’re not seeing leaks now, that’s a good sign, though. Just keep an eye out for any bubbling or lifting when it gets hot—synthetic can sometimes react weird in direct sun over time.
Just keep an eye out for any bubbling or lifting when it gets hot—synthetic can sometimes react weird in direct sun over time.
I’ve noticed that too, especially on south-facing slopes. Had a patch start to curl up last July, right after a week of 90+ temps. Out of curiosity, did you use any kind of cool roof coating or just the standard underlayment? I’ve been debating if those coatings actually help with heat issues or just add another layer to worry about.
I’ve wondered the same thing about those cool roof coatings—are they actually helping, or just making things more complicated? I tried a reflective one on my shed roof last summer, and honestly, it did seem to keep the surface temp down a bit. But then I started worrying about how it’d interact with the underlayment over time. Anyone else notice weird stuff happening after a couple seasons?
Yeah, I’ve had the same questions rattling around in my head. Used a white elastomeric coating on my garage roof, and it definitely made things less oven-like inside. But after two winters, I noticed some bubbling near the seams—maybe moisture got trapped? Not sure if it’s the coating or just my old underlayment acting up. Anyone else get weird smells when it heats up?
