Efflorescence On Fiber Cement Siding

Paint pigments will fade with sun exposure.

Efflorescence on fiber cement siding.

Efflorescence and how it affects siding. It s also good to know efflorescence does not harm fiber cement siding structurally nor is the siding hurt by proper surface cleaning. Actually everything fades with sun exposure. Efflorescence is caused when soluble salts and other water dispersible materials come to the surface of concrete and mortars.

Properly installed and maintained fiber cement is an excellent choice offering realistic wood looks. Read our latest siding blog post. Fiber cement efflorescence chalking and fading is not the same thing as efflorescence and the siding is most likely painted not stained. And darks have more room to fade than lighter colors.

Stay updated on all the trends happening in the industry. Once inside the water dissolves salts and other minerals in the substrate. On a home efflorescence occurs when fiber cement siding absorbs moisture whether from being uncovered prior to installation or from excess moisture entering through the back side of the substrate. Regardless if your fiber cement siding clad home is 10 15 years or older it s time to repaint but one thing will need to be dealt with first if your siding has a chalk like substance on it.

This substance is called efflorescence.