Stucco Stucco work is a construction technique that involves applying a layer of stucco, a plaster-like material, to the exterior surface of a building. Stucco is made of cement, sand, and water and is applied in multiple layers, typically over a wire mesh or metal lath that provides a framework for the stucco. The stucco is mixed to a smooth, creamy consistency and applied to the surface in a thin layer, using a trowel or a spray gun. Once it has dried, the stucco is typically smoothed and finished with a texture or color. Concrete stucco is a durable, low-maintenance finish that is resistant to fire, pests, and weathering. It is often used on residential and commercial buildings as an alternative to traditional brick or siding finishes.