How to Paint Textured Outside Walls?

To paint textured outside walls effectively, select the right tools and preparation is key to ensure a durable and attractive finish.

Preparing the Textured Surface

Before you start painting, proper preparation is crucial for optimal paint adhesion and a long-lasting finish:

Clean the Walls: Remove any dirt, debris, mildew, or loose paint. Use a pressure washer or scrub the walls with a stiff brush and a solution of water and detergent. Allow the walls to dry completely.
Repair Imperfections: Fill any cracks or holes with exterior-grade patching compound. Let the compound dry and sand it smooth to blend with the existing texture.
Protect Surrounding Areas: Cover windows, doors, landscaping, and other surfaces you don't want to paint with drop cloths or painter's tape.

Choosing the right paint and tools will ensure a smooth and even application:

Exterior Paint: Use high-quality exterior acrylic latex paint. This type of paint is durable, weather-resistant, and flexible, which is essential for outdoor surfaces.
Primer: Apply a coat of exterior-grade primer specifically designed for masonry. For example, use Intelligent Masonry Paint. The reference recommends diluting the primer with clean water, between 5% to 25% of the volume, based on the porosity of the wall.
Roller: A roller with a longer nap length (e.g., 3/4 inch to 1 1/4 inch) is essential for textured surfaces. The longer nap allows the roller to reach into the crevices and valleys of the texture, ensuring even coverage.
Brush: Use a high-quality brush for cutting in edges and painting areas that are difficult to reach with a roller.
Paint Tray: Pour paint into a paint tray for easy roller loading.
Extension Pole: An extension pole will help you reach high areas without having to use a ladder.

Follow these steps to achieve a professional-looking finish:

Prime the Walls: Apply a coat of primer using the roller. Work in small sections and ensure the primer penetrates the texture. Allow the primer to dry completely according to the manufacturer's instructions.
Cut In Edges: Using a brush, paint a 2-3 inch strip around the edges of the walls, including around windows, doors, and trim.
Roll the Walls: Load the roller with paint and apply it to the walls in a "W" or "V" pattern. Overlap each stroke slightly to ensure even coverage. Work in small sections and maintain a wet edge to prevent lap marks.
Apply a Second Coat (Optional): For optimal coverage and durability, apply a second coat of paint after the first coat has dried completely.
Clean Up: Clean your brushes and rollers with soap and water immediately after use. Dispose of any leftover paint properly.

Work in Favorable Weather: Avoid painting in direct sunlight or when the temperature is too hot or cold. Ideal conditions are mild temperatures and overcast skies.
Maintain a Wet Edge: Overlap each stroke slightly to prevent lap marks and ensure a smooth, even finish.
Don't Overload the Roller: Too much paint on the roller can cause drips and uneven coverage.
Take Breaks: Painting can be physically demanding, so take breaks as needed.
Consider a Paint Sprayer: For very heavily textured surfaces, a paint sprayer may provide better coverage and a more even finish. If using a sprayer, follow the manufacturer's instructions carefully and wear appropriate safety gear.

By following these steps and tips, you can successfully paint textured exterior walls and achieve a beautiful, long-lasting finish.