Slamming a door too hard? Hanging a heavy shelf without proper anchors? Living next to a train line or busy road? Physical shock or vibration can cause localized cracks around the point of impact.
You’ve just finished painting a room, or you’ve lived in your old home for years, and then you see it: a thin, spiderweb-like line running across the wall. Or worse—a deep, jagged fissure. why does plaster crack