What Causes Hairline Cracks in Stucco Walls?

The Causes of Hairline Cracks in Stucco Walls

Hairline cracks in a Stucco wall typically appear due to a number of reasons. Firstly, they can be a result of the traditional curing process for stucco, which involves expansion and contraction of the material. Secondly, ground movement or shifts can cause the wall to flex or settle, resulting in cracks. Also, inadequate application of the stucco mix can lead to cracking. These cracks usually show up every 16 inches, aligning with the underlying wall studs where the stucco coat is thinner, which is more susceptible to cracking.