what nap do you use for painting a room
1 Use a 1/2 inch (1.2 cm) nap for flat paint on walls and ceilings, 3/4 inch (1.9 cm) nap for rough surfaces like textured ceilings, and 1/4 inch (.63 cm) nap for satin or semi-gloss paint. 2  See the Tips below for more information on how to take good care of your equipment.