Skip to Content
Skip to Menu
Skip to Footer

Does Fiber Cement Resist Mold and Mildew?

There are some lessons we learn and never forget. Once our siding is compromised due to water damage, and we experience the costly hassle of mold and mildew issues, we won’t go down that road again. In fact, the next time we invest in new siding, we’ll likely ask how resistant the material we’re considering is to water.

Read on to discover more about fiber cement’s unwavering protection against mold and mildew.

Fiber Cement’s Exceptional Mold and Mildew Resistance

You can trust the sturdy makeup of fiber cement to stand up to mold and mildew because of its:


The durable makeup of fiber cement is the prime reason for its resilience against siding’s biggest enemy: water infiltration. Made of cement, sand, and cellulose fibers, fiber cement withstands the elements 24/7, including the precipitation Dayton homeowners are so familiar with throughout the year.

From winter snowstorms to spring and fall rain, fiber cement siding is a reliable layer of protection against moisture. You’ll bypass mold and mildew because of the water-resistant makeup of this durable siding material, giving you confidence in your investment.


The composition of fiber cement impacts its extreme durability. It delivers water resistance and therefore mold and mildew resistance for your home exterior. In fact, James Hardie siding offers protection from the long-term impact the elements—specifically in the Dayton area—can have on home siding.

Dayton homeowners choose the Hardie company’s HardieZone HZ5 siding product—which resists damage from ice, snow, wet, and freezing conditions. Designed to prevent damage from water in regions with extreme seasonal temperature variations and year-round precipitation, the HZ5 product is ideal for the Ohio area. This durable siding doesn’t just perform well in our area with year-round precipitation, it was made for it!

Moisture Resistance

Your home’s siding is its protective layer, and its job is to resist water intrusion. Keeping your home dry and helping you avoid the costly hassle of moisture penetration are part of your siding’s job, and fiber cement ensures you get both of these important features in its reliable moisture resistance.

When siding safeguards your home from water, you’re well protected from the unsightly and unhealthy effects of it: mold and mildew.


While other siding materials may start to age at 10 years and need replacing by 20 years, fiber cement is known to last up to 50 years when it is installed and well maintained. Even its warranty speaks of longevity, with up to 30 years of coverage backing this strong siding material. Mold and mildew are no match for fiber cement siding. They won’t be part of your experience over the years because of its moisture resistant properties. This is just one of the many reasons fiber cement lasts so long and why so many homeowners love it!

Can Mold and Mildew on Your Siding Affect Your Health?

Don’t risk the possibility of unhealthy mold and mildew growth on your home’s siding. As your protective layer, what gets into your siding can eventually get into your home interior. Mold and mildew aggravate respiratory illnesses like asthma, upper respiratory conditions, and even colds. Mold can trigger an allergic reaction, so it’s important to cover your home in mold-resistant siding like fiber cement.

Is James Hardie Siding right for your home?

Our “Complete Hardie Siding Guide” can help you decide.

Ensure a Long-Lasting Home Exterior with Fiber Cement Siding

Don’t risk the health hazards that mold and mildew cause when they invade your home. Enjoy a long-lasting, durable, mold and mildew resistant siding like fiber cement. At American Way Exteriors, we install America’s top fiber cement product: James Hardie siding. You’ll be impressed with its weather resistant qualities and confident in its ability to safeguard your home from unhealthy mold.

We’re the only James Hardie Elite Preferred contractor in the Dayton area, and we install siding the right way to protect your home from the elements for decades.

Take a moment to learn more about how our fiber cement siding services can transform your home exterior into a protective layer against moisture penetration and save you the hassle of mold and mildew damage.

Read Our Rave Reviews

American Way Exteriors has earned numerous positive reviews for our outstanding service. Read about our customers’ pleasant experiences working with us, then contact us today to learn how we can improve your home with new siding and roofing.

"Jake Preston is amazing! We had wind damage to our roof. Jake assisted us through every step. Making sure we had no unanswered questions. His professionalism and kindness is unmatched. The crew was respectful and detailed oriented. Thank you Jake and American Way!"

Michelle G.

"Replaced the existing siding on my home. Contact and price were discussed thoroughly during the initial discussions. Workers arrived at the scheduled time and were professional in the removal, new installation, cleanup, and onsite conduct. Communication between supervisors, installers and myself was on a daily basis and any issues were addressed immediately. Would not hesitate to use this company again or recommend them."

Beecher R.

"We chose American Way Exteriors to replace our old vinyl siding with Hardie board siding and trim. Throughout the entire process we found the team to be very professional and receptive to our questions about the project. They were constantly in touch with us about when work would start, what to expect each day of the project, and followed up to see if we had concerns. As the project began it was very apparent our house had suffered from poor installation by the builder years ago. The American Way team worked to fix the problems, keeping us well informed along the way. We could not be happier with the finished project both cosmetically and structurally. This is definitely a company we highly recommend exterior projects!"

Kathy G.

Our Trusted Partners