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Don’t Fret! You Can Avoid These Fiber Cement Problems

Jun 14, 2016



Some of the most common fiber cement siding problems can be prevented during the installation or shortly after they’re discovered. In this blog we will look at the most common problems and explain how the can be treated and prevented.


If the fiber cement siding is too wet during installation, it will shrink as it dries and will create gaps between the planks. This can be prevented through proper installation and ensuring the siding is properly conditioned before installing. If your siding has already been installed and you have gaps, you can repair them. A little bit of caulk will take care of it if they’re less than 1/18 of inch wide. Then, paint over the caulking to match the rest of the siding.


Fiber cement siding can crack if it’s hit by an object or if it’s installed too early in a new construction because the house has yet to settle completely. If you have small cracks in your fiber cement siding, they can often be repaired with some fiber cement patch material. Simply use a putty knife to apply the patch material, wait for it to dry, and then paint to match the rest of the siding.

If the crack is larger or on multiple planks of siding, you should call a professional siding installer to examine the damage. It’s possible the planks will need to be removed and new ones installed.

Loss of Paint/Lamination

Fiber cement siding is excellent at standing up to harsh environments, but it still has its weaknesses. If fiber cement siding has consistent exposure to moisture it can lose its lamination and paint can peel off. This can be prevented by limiting the amount of water the siding gets from sprinklers, pools, and gutters.

If you’re interested in some new exterior siding, contact Peninsula Siding Company for an estimate!

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