How To Choose a Good Paint Roller

A good paint roller makes all the difference in your painting project. Whether you’re refreshing a room or tackling a larger renovation, the right roller will help you achieve a professional-looking finish. In the video above, This Old House painting expert Mauro Henrique breaks down various roller types and techniques, plus shares tips for both experienced and novice painters.

Types of Paint Roller Naps

The nap of a paint roller refers to the length of the fibers that make up the roller cover. Different nap lengths are designed for specific surface types and have different paint applications and coverage.

Short Nap Rollers

Short nap rollers, typically 1/4 inch in length, are ideal for smooth surfaces. These rollers provide excellent coverage without adding unwanted texture to the wall. They’re perfect for the following:

• Cabinets
• Interior doors
• Newly plastered walls
• Smooth drywall

Medium Nap Rollers

Medium nap rollers, usually 3/8 inch in length, work for a range of semi-smooth to slightly textured surfaces. These rollers offer a balance between coverage and texture application. They work well on these surfaces:

• Ceilings
• Lightly textured walls
• Painted concrete
• Wood paneling

Long Nap Rollers

Long nap rollers, which can range from 3/4 inch to 1 inch in length, are designed for highly textured surfaces. These rollers can hold more paint and can reach deep into surface irregularities. They’re best for the following projects:

• Brick walls
• Concrete blocks
• Popcorn ceilings
• Stucco

Extra Long Nap Rollers

Extra long nap rollers, exceeding 1 inch in nap length, are designed for extremely rough surfaces such as cinder blocks. These rollers can hold the most paint and reach into the deepest crevices and textures. They’re best for these surfaces:

• Cinder blocks
• Bare brick surfaces
• Heavily limed and textured plaster walls

Choosing the Right Roller for Your Project

Consider the following factors when choosing your paint roller.

Surface Texture

The main factor that determines which roller to use is the texture of the surface you’re painting. As Henrique explains, matching the roller nap to the surface texture leads to better coverage.

Paint Type

Different types of paint work better with certain roller materials. Here are some examples:

• Foam rollers are great for oil-based paints and varnishes.
• Microfiber rollers work well with latex paints.
• Natural fiber rollers are suitable for oil-based paints and stains.
• Synthetic rollers, such as polyester, can be used with both oil- and water-based paints.

Project Size

For larger projects, consider using a larger roller width to cover more area quickly. Standard rollers are 9 inches wide, but you can find rollers up to 18 inches wide for expansive walls or ceilings. Smaller rollers, around 4 to 6 inches, are good for tight spaces and detailed work on large projects.

Techniques for Using a Paint Roller

Once you’ve chosen the right paint roller for your project, use these techniques to get a clean, professional-looking result:

• Preparation: Before painting, check that  the roller is lint-free by wrapping it with masking tape and removing it. This will pick up any loose fibers. If using a new roller, wash it with water and mild soap to remove any manufacturing residue, then allow it to dry completely.
• Loading the roller: Pour paint into the reservoir of the roller tray. Dip the roller about 1/3 of the way into the paint, then roll it back and forth on the ribbed part of the tray to distribute the paint evenly. The roller should be saturated but not dripping.
• Application: Start with the “W” or “M” method. Begin in a corner and roll the paint on in a 3–foot square “W” or “M” pattern. Then, without re-loading the roller, fill in the pattern with horizontal strokes. This leads to even distribution and coverage. Apply even, moderate pressure to the roller. Too much pressure can leave roller marks and cause splatter, while too little may result in inadequate coverage. Maintain a steady, moderate speed for the most consistent results
• Maintain a wet edge: Always work from a dry area into a wet area, overlapping the previous section by about 3–4 inches. This technique, known as “keeping a wet edge,” prevents lap marks and ensures a uniform finish.
• Avoiding roller marks: On the final pass, use light pressure and roll in one direction from top to bottom (for walls) or all in the same direction (for ceilings) to create a uniform appearance.
• Dealing with corners and edges: Use an edging tool or brush for areas the roller can’t reach easily. Then, blend these areas with the roller while the paint is still wet for a seamless finish.

Our Conclusion

Choosing the right paint roller and using proper techniques can significantly impact the quality of your painting project. By matching the roller nap to your surface texture and following the expert advice provided by Henrique, you can achieve professional-looking results when painting your home.