How To Surface Prep Fiber Cement Siding For Painting?

Published on July 29, 2022
Updated on December 11, 2023
3 Minute read

How To Surface Prep Fiber Cement Siding For Painting?

There's no denying that fiber cement siding is one of the most durable exterior materials on the market. But even the most durable siding can show its age after a few years. If your fiber cement siding is starting to look a little lackluster, don't despair. A fresh coat of paint to your fiber cement siding can go a long way towards revitalizing your home's exterior.

But before you break out the paintbrush, there are a few things you need to do to prepare the home exterior siding for paint.

This blog post by Spray Tex Painting will walk you through the steps necessary to prep your fiber cement siding for painting. Follow these tips, and you'll be able to achieve a beautiful, lasting finish on your siding.

Step #01: Clean the Surface

Clean the surface thoroughly with a power washer. If it's not available, you can use a garden hose. Ensure any dirt, dust, or pollen that could interfere with the paint adhering to the siding is removed. This step is especially critical for fiber cement siding since the material is porous and can trap contaminants.

Step #02: Scrape Off Any Flaking Paint

If there is flaking paint on the surface, use a putty knife or similar instrument to scrape it away. Caulk or spackle should be used to fill in the gaps and cracks. This will assist the paint in adhering evenly to the surface and prevent moisture damage.

Step #03: Sand the Surface

Use sandpaper - preferably medium-grit- to lightly sand the surface of the siding. This will help create a "key" for the paint to adhere to. After sanding the area, wipe off the dust and debris before moving on to the next step!

Step #04: Prime the Surface

Once the surface is clean, and all the cracks and holes are filled, it's time to prime the siding. This step is vital because it aids the paint's better adhesion to the surface and adds a protective layer. Use a high-quality exterior primer that is designed for use on fiber cement siding.

Step 05: Paint the Surface

Now it's finally time to break out the paint! Use a high-quality exterior paint designed for use on fiber cement siding. Use a brush or paint roller to evenly apply paint in layers as you work your way down the surface. Allow the initial layer of paint to dry before applying a second coat completely. You're all done once the second coat has dried!


If you want to give your fiber cement siding a new lease on life, follow the steps in this guide. With a little surface preparation and the right type of paint, you'll have no trouble giving your fiber cement siding a fresh, new look. However, you might get streaks and missing spots on the surface if you're not meticulous.

That’s why we are here to help! At Spray Tex Painting, we've been painting home exteriors in Murphy for decades, and we know how to prepare your home for a beautiful paint job that will last.

We provide detailed, transparent estimates for interior and exterior paint jobs – so **get your free estimate now! **


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    Mason Marquis

    Mason Marquis, raised in Newport Beach, California, and Austin, Texas, amalgamated his experiences from both vibrant cities in his journey. His academic pursuit in Economics and Psychology at the University of North Texas (UNT) led to the founding of Spray Tex Painting. This venture was not just a business for Mason but a practical application of his academic learnings, particularly the integration of economic concepts and psychological understanding. Spray Tex Painting, under Mason's direction, transcends being merely a painting service; it's a platform where client visions are realized through dedication and creativity.

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