Solid-color stains will not last as long as paints, but often they are the finish of choice on textured or rough-sawn siding products. They also can be applied over existing paints and solid-color stains, and normally leave a flat finish appearance. Like paints, solid-color stains protect wood against UV degradation.
Data based on research from the USDA Forest Products Laboratory (FPL). Expected life predictions are for one and two coats of each finish at an average location in the continental United States. This expected life will vary in extreme climates or exposure. For a summary discussion and detailed information about the different exterior finish choices, see this FPL bulletin (PDF).
