Crack survey

Every width below was sampled perpendicular to the crack on the wall, not on the screen, and converted to millimetres through the printed marker. Where the photograph cannot support a number, this report says so and says why.

Hairline ships no crack-width limit from any design code. The review bands are an operator setting, and the default values are not taken from ACI 224R, EN 1992-1-1 or any other standard. Enter your own before using this to decide anything.