If you have kids, pets, or occupants who will damage the walls, it is recommended to go with washable matte, eggshell, or satin, because these paints can be easily cleaned and are more durable. However, flat paint can be touched up more easily and hides imperfections better, so if you are selling the home, it is highly recommended to go with flat. Bathrooms with showers/tubs should go in semigloss- unless you are selling or want a specific design look, then use satin.
Interior and exterior paints need to stand up to entirely different menaces. Paint on the interior of your home will need to be cleaned or even scrubbed, while exterior paints need to be weather and sun-damage resistant. Both exterior and interior paints are a combination of pigment, solvent, resins, and additives. The solvent in paint keeps it liquid and spreadable until it dries on your wall or trim. Latex paint dries more quickly because its solvent is water, while the solvent in oil-based paints is mineral spirits, which takes more time to evaporate. Once the paint is applied, the solvent evaporates, and the resin allows the paint to adhere to the surface. Various additives in paint give it desirable characteristics, like moisture and scrub resistance. Louisville House Painting
Priming - $30–$40/hour for labor. Many of the materials above need to be primed, but not all do. If you’re changing paint colors from dark to light or light to dark, use a color similar to the top coat. That way you’re less likely to need extra coats over the standard two. Prime with a flat or eggshell paint. You can ask your paint store to add tint to the primer to match it with the top coat color. Hammer in exposed nails and spray them with a metal primer to prevent rust. House Painters Louisville