Use the correct amount of paint Check the paint coverage on the side of the can to ensure you're applying the right amount of paint. Spread it too thinly and it will look patchy; spread it thick and it can look lumpy or uneven.
Uneven Application: If the paint is applied inconsistently, either too thickly in some areas or too thinly in others, it can lead to a patchy look. This is often due to using too much or too little paint on the brush.
Do at least 2 coats with a quality paint. Roll in perpendicular directions (criss cross pattern) in separate coats to get the best coverage (ie: paint mainly in one direction on the first coat, then go across in the next coat). If your ceiling has any texture, go with a coarser finish roller and it will go much faster.
Why it happens: An excessive amount of paint on your roller or paintbrush can cause paint to drip and run. Streaks, where paint is unevenly distributed on a wall, typically result from having too little paint on your roller or brush.
If by patchy you mean a streaky finish, the best way to get it perfect is to apply a mist coat as the top layer. You do this by adding water to the emulsion, Make a must coat by adding one part water to three parts paint, mixing thoroughly, and then applying carefully always roller if in the same direction.
Patchy paint can result if paint has been applied unevenly. Patchy paint can be down to a variation in surface absorption. Walls might appear patchy if they have variation in texture. Using paint that is not fully mixed can cause a patchy appearance.
As you work your way across the ceiling, position the roller a foot away from the wet edge and roll the next section into the wet edge, overlapping it slightly to prevent ceiling streaks.
Be careful not to apply the wrong type of pressure or fail to use enough paint on the roller, which may have created the streaks in the first place. Use fine grit sandpaper to even out roller marks. Wipe the surface down after you've finished with the sandpaper. Then paint over the streaks lightly.
Tikkurila Anti-Reflex 2 is a water-based latex paint that eliminates flashing and hides imperfections on ceilings such as small dents and uneven surfaces. With an exceptionally high opacity, it produces a deep, flat matt finish regardless of the light angle.
Smaller hairline cracks can sometimes be covered with a “brushed-on” first coat of ceiling paint or primer, which is enough to fill the hairline. Then concealed with the final coat. For noticeable cracking and peeling, you can first sand and scrape away with a putty knife and smooth with sandpaper.
Paint rollers are very popular, especially when painting large areas of space like walls or ceilings. They are much quicker to use than brushes, covering the area in a fraction of the time. Plus, when used properly can create a smooth, even finish.
Ceilings and Drywall - Medium 3/8″ roller covers work best. Walls, Wood, and Metal - Small 1/4″ roller covers or foam rollers will produce the smoothest finish. Light to Medium Textured Surfaces - Microfiber rollers are best. Smooth Surfaces - Use a white woven short nap roller for an ultra fine finish.
How many coats of paint do I need? Generally, you will want a minimum of two coats of paint – this is a good rule of thumb for any wall or ceiling you're painting. You'll rarely get a seamless finish from just one coat of paint, and even if you do, coverage isn't the only goal when it comes to painting a room.
Usually, patchiness in dry ceiling paint is caused by not having a 'wet edge' as you paint. This means keeping the edge of the painted area wet so that when you roll into the next section, it blends smoothly so no lines appear. The only way to even out a patchy ceiling finish is to re-paint the whole ceiling.
Most ceiling paints have a flat (or matte) finish. A flat finish doesn't reflect lights and will hide most irregularities and defects in the ceiling. On the other hand, reflective sheens draw the eye upward and can detract from the rest of the room. Another benefit of a flat finish is that it doesn't scuff easily.
When tackling ceiling repairs, light grays and soft taupes prove remarkably effective at concealing imperfections. These colors create subtle shadows that minimize the appearance of patches or slight irregularities.
Dip your roller lightly into the paint. It should cover less than half of the roller. Roll it back and forth on the ramp to distribute it evenly; this is how to stop patchy paint when using a roller.
Also, a second coat of paint helps remove roller marks by allowing you to feather out some of the unevenness in the finish. You can do this by overlapping the uneven areas to create a more uniform finish.
Fortunately, you can remove roller marks by using a wet sponge and some sandpaper. Once your paint has dried off, rub down the surface using your sandpaper. Be sure not to get rid of too much of the paint because the only goal is to even out the coating.
When painting smooth ceilings, the best strategy is to roll parallel with the main source of natural light, such as a big window, as it helps prevent roller lines. If you roll perpendicular to the dominant light source, the roller lines can form a slight shadow. The same applies when spraying.
While white ceilings are versatile and timeless, they may lack the drama and impact that a colored or textured ceiling can bring to a room. If you're looking for a bold statement or a unique design element, white may not be your best choice.