Stucco is a unique blend of powdered limestone or cement that is mixed with sand and water until it creates a mortar-like consistency. It is applied by a professional, who uses their hand to paint it over a metal wire or lath. It then cures to a hard and durable masonry surface which can last for decades on the exterior of a home. Once it has been applied, you can update your old stucco siding by using different exterior paints. This allows you to customize the aesthetic of the stucco, providing it with an updated, professional look. Stucco holds paint very well compared to many other surfaces. Therefore, if the siding is in good condition, prepping for the job can be an extremely simple process.
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How To Prepare
To begin preparing for stucco painting, begin by cleaning the surface of the stucco. Start by removing dust. This will require a bushing of the stucco using a push broom. However, if the stucco has a deeper texture, a power washer may be the best alternative to get rid of the deeper ingrained dirt.
Once cleaned, you can begin filling cracks in the stucco using masonry-compatible caulking. For the larger cracks, you may choose to use a putty knife in order to remove any loose debris. Once you have done this you can then fill in all cracks with a stucco repair product. To use this product, follow the instructions on the package and mix with water. After use, wait around 10 days for the product to take effect. This may be slightly longer or shorter based on the instructions.
Before painting, apply painters tape around the door and window trim to avoid any unnecessary paint or splatter. Once completed, apply a coat of exterior masonry primer by brushing the primer around the edges. Then, roll the primer on the flat wall. In order to get the best results, we would suggest you use a roller grid. This grid can be found at many local stores and can fit into a 5-gallon bucket. Simply pour your primary into the bucket, dip in the roller and roll upwards along the grid lightly.
Make sure that you cover the whole stucco surface with the primer. If the stucco has been stained in the past, you can use a stain-blocking primer to prevent any stains from seeping through.
The larger the texture of the stucco, the thicker the nap of the roller must be. This ensures effective distribution of paint into the crevices. Don’t place too much pressure against the wall as this may result in roller streaks.
Before you start painting, let the primer dry for the time suggested, if not a little longer to be sure. Brush a light coat on the exterior masonry around the windows and doors with a paintbrush of your choice. You can then use a large-nap roller to roll on the rest of the pain. After the first coat has dried, you can add one (or more) additional coats to create the complete look!