What type of paint finish is generally used for ceilings?

The type of paint finish that is generally used for ceilings is flat. This finish has a non-reflective surface that helps to hide imperfections, which is particularly advantageous when painting ceilings that can have various blemishes or irregularities. A flat finish also minimizes glare, making it more comfortable for the eyes in a room's lighting and contributing to a softer, more cohesive look across the ceiling surface.

In contrast, finishes like gloss or satin tend to reflect light more and can highlight flaws rather than conceal them, making them less suitable for ceilings. Eggshell finishes can offer a slight sheen, but they are typically better suited for walls where a bit more durability and washability is needed. Therefore, the flat finish is a practical choice for ceilings, aligning with conventional painting practices.