The causes generally fall into three "camps": initial drying issues (new walls), structural shifts (the house moving), and environmental stress (weather and age). 🛠️ The "Fresh Plaster" Fails
Why do your walls keep cracking after using wall plaster, and how can you stop it? ... You've just finished plastering your walls, Birla White what causes plaster to crack
Before you reach for the filler, let’s diagnose what is actually causing that crack. The causes generally fall into three "camps": initial
Plaster is a 2,000-year-old technology—it’s hard, durable, but brittle. A few cracks are normal in an old home. But if your cracks are growing, gapping, or accompanied by sticking windows or sloping floors, don't ignore them. You've just finished plastering your walls, Birla White
This is the one you worry about. If a foundation sinks, a roof truss lifts, or a load-bearing wall shifts, the plaster will crack badly. Look for wide cracks (over 1/4 inch) , cracks that run across the ceiling and down the wall, or cracks near door frames that cause the doors to stick.
While settlement is normal, significant structural movement is a more serious concern. Cracks caused by structural issues often look different than cosmetic hairline cracks.
If your cracks appeared shortly after the job was done, the culprit is usually the application process.