What causes stucco to crack in the first place?
That's probably the number one question we get, and it's a good one, too. Understanding the cause really helps you prevent future issues. Here in Riverside, we see all sorts of things. Sometimes it's just normal house movement, you know? Your home settles over time, and a little hairline crack usually isn't a big deal. Think about the expansion and contraction from our hot summers and cooler winters — that plays a role, for sure. But then you've got bigger problems, like structural issues, maybe a shifting foundation, or even just a poor initial application of the stucco itself. We also see a lot of cracks around windows and doors because those are natural stress points. Water intrusion is another big one; if water gets behind the stucco and freezes (not often here, but it can happen during colder snaps) or causes wood to rot and shift, you'll definitely see cracks. And let's not forget our infamous Santa Ana winds; they can really put a house through its paces, especially if the stucco wasn't put on right from the start.
How do I know if a crack is serious or just cosmetic?
This is where a little observation goes a long way. Small, hairline cracks, say less than 1/16th of an inch wide, that don't seem to be growing? Those are usually just cosmetic. You can often patch those up yourself if you're handy, or we can do it for a quick fix. They don't typically mean water is getting in, thankfully. But if you see cracks wider than 1/8th of an inch, or if they're running diagonally from the corners of windows or doors, or if they're stair-stepping along your foundation, those are definite red flags. Those kinds of cracks can point to structural movement, and they're absolutely pathways for water. If you can stick a credit card into a crack, well, that's serious. Also, look for signs of water damage around the cracks, things like discoloration, bubbling paint, or efflorescence (that white powdery stuff). If you're ever unsure, it's always best to have a professional take a look. Catching a small problem early is much better than dealing with a huge, expensive headache later.
Can I just paint over stucco cracks?
Short answer? No, not really. Painting over cracks is like putting a band-aid on a broken bone. It might look okay for a little while, but it doesn't fix the underlying issue. If the crack is serious, water will still get in behind the paint, causing more damage. The paint will eventually crack and peel in that area anyway, and you'll be right back where you started, only now you've got a bigger mess to deal with. For very minor hairline cracks, a thick elastomeric paint *might* bridge them for a bit, but it's not a real repair. You need to properly clean out the crack, sometimes widen it a bit, apply a good quality caulk or patching compound, and then prime and paint. That's the right way to do it. Honestly, don't waste your money on paint if you haven't addressed the crack itself.
How long does a stucco repair typically last?
When we do a proper repair at Riverside Stucco & Plastering, it should last for many, many years — often as long as the original stucco, or even longer if we're addressing a specific failure point with better materials. The key is that