Before starting painting, you should secure or move out all unnecessary objects from the room. Next, you have to collect necessary tools and materials. You will need: protective film, durable masking tape, putty knife, flat brush and ceiling paint brush, smoothing trowel, sanding paper, float or hand sander, protective gloves, mask and ladder.
First, you have to spread the film on the floor and tape the baseboards. This step is particularly important as securing the room precisely will enable you to avoid damage and significantly accelerate tidying the room after painting.
Next, assess the condition of walls and the ceiling. Remove all uneven surfaces or loose plaster. If you notice holes or deeper scratches, you should skim coat them with a proper painter’s putty. When the putty dries, sand it and remove the remaining dust with a wet cloth.
Start priming. It will reinforce the surface, prevent discolorations as well as protect the wall against damage and the activity of microorganisms.
Apply a primer with a large brush, for example a ceiling paint brush. Apply it evenly, from the top to the bottom.
Usually one layer of a primer is enough. You can apply two layers in the case of a very absorbent surface.
After drying, such a surface is ready to be painted.