Frame problem


The Frame problem is the phenomenon of non-uniform coloring of the surface that occurs when all the edges of a wall are first painted with a brush and then the rest of the wall with a roller.

Because brush-on surfaces dry before roller application, the final result appears darker on the edges and lighter on the roller-brushed surfaces.


  • The brush leaves a thicker layer than the roller.
  • Use of an inappropriate pigment in the paint which creates a different effect depending on the application method.


  • Make sure the brush and roller leave the same amount of paint on the surface.
  • Do not try to do the edges of the whole room first with the brush and then use the roller.
  • Work in smaller sections of the room so that you maintain a constantly wet surface.
  • Make sure that the coloring of the materials is done in the right way and that they are mixed well before use.