Brush and roll techniques are two common methods used in painting to apply paint to a surface. Both techniques are used to achieve a smooth, even coat of paint and can be used for interior or exterior painting projects.

The brush technique involves using a paintbrush to apply paint to the surface. This method is ideal for small, detailed areas, such as corners and trim, or for applying paint to textured surfaces, such as stucco. The key to a successful brush technique is to work the paint into the surface and to brush it out evenly, avoiding drips or puddles.

The roll technique involves using a paint roller to apply paint to the surface. This method is ideal for covering large, flat areas quickly and efficiently. The roller applies the paint in a thin, even layer, which helps to reduce drips and puddles. The key to a successful roll technique is to keep the roller well loaded with paint, to roll it on the surface in a W pattern, and to maintain an even pressure on the roller to avoid leaving roller marks.

Both the brush and roll techniques have their advantages and disadvantages, and the choice of which to use will depend on the specific project and the desired outcome. However, many painters prefer to use a combination of both techniques, using the brush for the small, detailed areas and the roller for the larger, flat areas, to achieve a smooth and even finish.