You'll know immediately when you've overloaded the roller. It will drip en route to the wall and have a tendency to slide and smear instead of roll across the surface. The most effective method of painting with a roller is to paint 2-or 3-square-foot areas at a time.
Tips for using a paint roller
Before using a roller cover, it should be pre-wetted with water if a latex paint is being used, or mineral spirits for an oil base paint. The cover should then be spun or dabbed with a rag or paper towel to remove the excess liquid.
Simply pour a gallon of paint in the bottom of the bucket and dip the roller into it. Roll the roller up the screen to push out all the excess paint so it won't splatter when you apply it to the wall.
Don't press too hard on the roller, as the fibers of the roller cover will get matted—let the paint do most of the work. Pressing too hard will also make your paint thick at the edges of the stroke. If you're using a paint roller with an extended handle, stop a few inches from the ceiling.
When your roller lifts the existing coat of paint from the wall surface it indicates that the wall was not prepared correctly or possibly something is affecting the bond to the wall (like moisture or heat). Although the newly primed paint isn't pealing off the wall it would be wise to check that it has a good bond.
Roller marks, which painters sometimes call "holidays," are a routine hazard when painting with a roller, and there are many ways to avoid them. When you notice holidays after the paint has dried, you can usually make them disappear by applying another coat after sanding lightly—if necessary—to remove drips and humps.
normally what i do is cut in, then back roll it with a wiz roller to blend in brush lines, i usually cut in the whole room/area. so depending on how large the area is, the edge is still wet or drying but ever completely dry, ESPECIALLY ANYTHING WITH A HIGH SHEEN(semi gloss,satin,enamels).
Generally, latex has a much thicker consistency that oil-based ones. Hence, you will need to thin it first before use to ensure the even and smooth application on any surface.
The roller is more economical to use than the brush since its porous surface holds much more paint and distributes an even layer of paint much faster. The smoother the wall, the shorter the filament length should be (approx. 10mm), but in general it's better to take advantage of a roller with longer filament.
They are often caused by a painter putting a second coat of paint on the wall before the first coat has completely dried. Using these techniques will allow you to fix stippling paint or to repair roller marks on a painted wall: Make sure the paint is completely dry.
Buying a Cheap Roller Cover
If your time is worth anything, a cheap roller cover is the most expensive tool you can buy. Cheap covers don't hold enough paint, shed fibers on your walls, and in general are a pain to use. We prefer lamb's wool roller covers, but any top-quality roller cover will work fine.
Try these simple tips to extend the life of your paint rollers and make your next painting endeavor even easier. First, keep in mind these principles: Not all paints require the same type of cleaning, but no matter which method you use, all should be cleaned immediately after use.
Do not overfill. Dip the roller lightly into the paint, the paint should cover less than half of the roller. Then roll it backward and forwards on the ramp of the tray to evenly distribute the paint on the roller cover.
Because a second coat of paint is a lot easier and quicker to apply than the first (since the prep work has been done, and the paint adheres better the second time around), reputable professional home painters will only charge you a nominal amount for the second coat.
If you're painting a ceiling and walls, the common 9-inch medium pile roller is your best choice. Try it with an extension or use a pole roller to reach those out-of-reach areas such as stairwells. If you want to give your doors, kitchen cabinets or furniture a smooth finish you'll need a 4-inch foam roller.
When you water down exterior paint, it changes the color by making it lighter. This means that the end result often differs from the sample patches or the digital renderings, if the contractor provided them at all. Watered-down paint also causes inconsistencies, especially when the water and paint are poorly mixed.
For painting wall edges, it is best to paint the edges first, then paint the rest of the wall surface with a paint roller. There are two ways to paint wall edges near the ceiling. You can either use a paint edger device or use a good-quality angled paintbrush.
As long as it is in good condition, you can paint over it. DON'T close off the room. Keep doors and windows open to allow for proper ventilation. DON'T underestimate how long it'll take you to get the job done.
Adding a Second Coat
After your first coat of paint is dry, it's safe to recoat typically after four to six hours. A good rule of thumb is to wait at least three hours to recoat your paint or primer if it's water-based. Waiting 24 hours is best for oil-based paint and primer.
Research the color you're interested in to get a sense of how tricky it is to work with. Three Coats– In this last scenario, three coats would actually be the absolute minimum number needed. This most labor-intensive case is when you are painting a light color over an existing dark color.