Behr is a leading brand of interior and exterior paints and is available exclusively at Home Depot. When siding and trim look dingy, a wash with detergent, a scrub brush, and a garden hose can restore a paint job's good looks. Water-based paints are compatible with both types of primer. This simple house style from the first third of the 20th century is characterized by bold trim and architectural details, such as eaves brackets. Its retail stores cater to professionals and consumers, and offer a variety of paint supplies and tools. One mil is one-thousandth of an inch, about one-quarter the thickness of human hair.