If you own a home in Las Vegas, chances are the exterior is finished with stucco . With hundreds of thousands of stucco-clad homes across the valley, stucco cracking is one of the most common topics that comes up during home inspections. The good news? Not all stucco cracks are a big deal — but understanding which ones matter is key. What Is Stucco? Stucco is an exterior wall finish made from a mixture of: Cement Sand Lime Water It is applied wet over exterior wall material