Struggling with installing hip and ridge shingles - any tips?

If you’re off even a little, you’ll get crooked lines or worse, loose tabs. I’ve seen folks try to “fix” it with extra cement, but like you said, that just makes future repairs a pain.

That part about extra cement made me laugh - been there, regretted that. It’s tempting when you’re staring at a stubborn shingle that just won’t sit right, but yeah, it turns into a sticky mess later. I’ve actually had to pry up old ridge caps where someone went wild with the goo and it was like fighting bubblegum in July.

Curious if anyone else has run into issues with certain brands being more forgiving than others? I’ve noticed the “eco” shingles (the recycled rubber ones) are a bit more flexible on hips and ridges, but they also seem to show nail placement mistakes more than asphalt. Maybe it’s just me being picky.

On the decking thing - totally agree about not shimming forever. In my last project (old farmhouse, roof looked like rolling hills), I ended up pulling off two feet of decking along the ridge because nothing would lay flat. Felt like overkill at the time but honestly, everything lined up so much better after. Anyone else ever have to do that and feel slightly ridiculous in the moment?

One thing I’ll throw out there: has anyone tried using those vented hip/ridge systems? The kind that snap together instead of nailing through every cap? I’m wondering if they hold up as well long-term or if they’re just another gimmick for “easy install.” My neighbor swears by them but he’s also the guy who uses duct tape on gutters...

And does anyone bother chalking lines for hips/ridges? Sometimes I feel like it’s overkill, especially on shorter runs, but then again my eye isn’t always as straight as I think it is.

Anyway, patience seems to be the universal answer here - but sometimes you need a little luck too.

That feeling of pulling up decking and thinking, “am I really doing this?” - been there, too. Sometimes it’s just the only way to get things to line up, especially on older houses where nothing’s square. I’ve noticed the eco shingles are a bit more forgiving with bends, but like you said, they don’t hide mistakes as well. Chalk lines help me, even if it feels like overkill - my eye just isn’t that trustworthy. Haven’t tried the snap-together vented systems yet, but I’m skeptical... seems like anything “easy” in roofing comes with a catch down the road. Patience and a little trial-and-error go a long way.

Chalk lines help me, even if it feels like overkill - my eye just isn’t that trustworthy.

Same here. I used to think I could just eyeball it, but after one too many wavy ridge lines, I’m a chalk line convert. On one of my older properties, nothing was square and the decking was all over the place - pulling up boards felt like opening a can of worms, but it was the only way to get things remotely straight. Haven’t tried those snap-together vented systems either. I get why people like the idea, but I’m always wary of “easy” solutions in roofing... seems like shortcuts now mean headaches later.

Yeah, chalk lines are a lifesaver, especially on those older houses where nothing’s straight. I used to think I could just line things up by eye - nope, ended up with a ridge that looked like a rollercoaster. Haven’t tried the snap-together stuff either... seems like it’d be more hassle if you ever need to repair anything down the road. I’ll stick with the tried-and-true for now.

I tried eyeballing the ridge my first time, too, and yeah... let's just say I learned the hard way. Ended up having to pull half of it off and redo it after stepping back and realizing it looked crooked from the street. Chalk line made a huge difference for me - especially since my house is older and nothing seems square. Haven’t messed with the snap-together stuff either, but honestly, just keeping it simple has saved me a lot of headaches so far.