Here are the steps professionals follow to apply a stucco finish. After installing a 15-pound felt moisture barrier on the side wall, nail on wire-key lath, which looks like铁丝网. Next, apply a 3/8-inch-thick scratch coat. When cured, apply the textured brown coat. The 1/8-inch color coat goes on last.

For more on siding, consider:

Stucco 101
Applying Stucco(视频)
Bob Vila’s Guide to Exterior Siding