Hardiplank and other fiber cement sidings cannot be stained like traditional wood. Although it is textured to resemble wood siding, it actually has more in common with concrete than wood. However, people who are interested in Hardiplank or another type of fiber cement siding don’t have to sacrifice the appearance of traditional stained wood, special products on the market will help create a stained appearance.
Keep in mind that it is best to stain the Hardiplank, or whichever fiber cement siding you choose, prior to installation. You should also be sure to buy fiber cement siding that has not been painted, but only primed. The stain for Hardiplank and other fiber cement sidings pools along the imprinted texture of the board. If the boards are hung already, the stain is not as even or as effective. In this case, it may be best to consider painting the fiber cement rather than staining it.
Step 1: Lay all of the boards out on a drop cloths over a flat surface with the textured side facing up. Clean the surface of each board with a cloth to remove any dust or dirt.
Step 2: Use a paint sprayer to cover the fiber cement siding with an even layer of stain. Try to adjust the spray so a single pass will cover the entire width of the board. This will ensure that the stain is evenly applied to the Hardiplank, or whichever fiber cement siding you are staining. Allow the stain to dry completely before proceeding.
TIP: Be sure to buy stain specially made for use with fiber cement products.
Step 3: Apply a second coat of stain. It is best to apply several thin layers of the fiber cement stain rather than one heavy coat.
Step 4: Continue to apply layers of stain over the Hardiplank or whichever fiber cement siding you are using. With each coat, the color on the siding should deepen, and the imprinted grain should become more apparant.
Step 5: Allow the siding to dry completely before it is installed on the exterior of the house.