Lap marks often occur when wet paint overlaps dry paint, sometimes creating more of a shine in some areas or a darker color in some areas. Here’s how to avoid them.

To prevent this, maintain a wet edge while painting by working quickly to avoid sections drying and blending the newly applied paint with the previously painted areas.

Another tip is to paint from the top to the bottom of the wall in long lines instead of moving in various directions. It's also a good idea to use a primer before you begin.

Paint the entire wall at once to reduce the times the paint has to drive. If you have to do it in sections, stop at the corner of the wall so it's less obvious where it overlaps.

Roll the paint onto the wall six inches away from where you just painted as you work. Then, paint backward, covering the unpainted part and moving inside the already painted edge.

Painting in this manner allows you to continuously blend the paint so that it does not dry out as you progress over

the wall.