Hairline cracks are thin, shallow, and often cosmetic; structural cracks are wider, migrate through layers
https://privatebin.net/?b25926e12db7e791#7aPKHRYwQkJaXHAi6TDJtFn33MP447BEJzdax9mUTGk4
Hairline cracks are thin, shallow, and often cosmetic; structural cracks are wider, migrate through layers, or shift over time. Measure width, monitor growth, and inspect nearby framing to determine repair urgency.