Hardie board siding, a durable and aesthetically appealing choice for homeowners, requires thoughtful maintenance to retain its beauty and longevity. While it’s renowned for its resilience, this fiber cement siding benefits from specific care techniques that protect its finish and structural integrity. This blog post covers best practices for maintaining Hardie board, why soft washing is the only recommended method, and the risks of using sodium hypochlorite (SH) on this material.
Understanding Hardie Board’s Unique Requirements
Hardie board, made from a combination of cement, sand, and cellulose fibers, is designed to withstand the elements while providing a classic look to homes. Its composition gives it strength, but it also makes it susceptible to damage from certain cleaning techniques.
Ensuring the longevity of Hardie board siding involves:
- Preventing the buildup of dirt, mold, and mildew to avoid discoloration and maintain curb appeal.
- Protecting the finish, especially if it’s painted or comes with a factory-applied color, to preserve the original look.
- Avoiding erosion and structural damage by using safe, approved cleaning methods.
Why Soft Washing is the Best Approach
When it comes to cleaning Hardie board, soft washing stands out as the safest and most effective method. Here’s why:
- Gentle Yet Thorough Cleaning Soft washing uses low-pressure water combined with a cleaning solution to effectively remove dirt, mold, and mildew without the risk of damaging the siding. This technique eliminates contaminants while maintaining the siding’s structural integrity, making it ideal for Hardie board’s fiber cement composition.
- Preserving the Finish Hardie board often comes with a baked-on finish or factory-applied paint, which adds to its aesthetic appeal. High-pressure washing can strip or chip this finish, leaving the siding exposed to the elements. Soft washing, on the other hand, uses low-pressure water that won’t harm the paint or finish, preserving the look of the siding over time.
- Preventing Water Intrusion High-pressure cleaning can force water behind the siding, potentially leading to mold, mildew, or even structural damage if water seeps into the building. Soft washing avoids this risk by using gentle water pressure that cleans the surface effectively without forcing moisture where it doesn’t belong.
Why You Should Avoid Sodium Hypochlorite (SH) on Hardie Board
While sodium hypochlorite is a common cleaning agent for exterior surfaces, it is not suitable for Hardie board siding. Here’s why using SH should be avoided:
- Potential Damage to the Finish Sodium hypochlorite is a strong chemical that can deteriorate the painted or factory-applied finish on Hardie board. Its harsh nature can lead to fading or peeling, significantly reducing the siding’s lifespan and aesthetic appeal. This can require costly repainting or additional maintenance to restore the original look.
- Chalking and Residue Formation When SH interacts with Hardie board’s finish, it can cause a process called chalking, where a powdery residue appears on the surface. This residue not only looks unattractive but may also require further cleaning to remove it. This added maintenance can be avoided by using soft washing techniques that don’t involve harsh chemicals.
- Alternative Cleaning Solutions are Effective and Safe There are gentler cleaning solutions specifically formulated for fiber cement siding, including mild detergents and James Hardie-approved mildew cleaners. These alternatives offer effective cleaning without the risks associated with SH, ensuring the siding stays protected and looking great for years to come.
Best Practices for Hardie Board Maintenance
To keep your Hardie board siding in prime condition, follow these guidelines:
- Inspect Regularly: Check your siding at least twice a year for dirt, grime, or signs of mildew. Early intervention can prevent more extensive cleaning or repairs later.
- Use Appropriate Cleaning Methods: Soft washing with a professional service ensures the use of approved cleaners and techniques. If doing it yourself, always opt for mild soap and low-pressure rinsing.
- Rinse Thoroughly: Make sure any cleaning agents are thoroughly rinsed off to avoid leaving residues that could harm the finish.
- Touch Up Paint if Needed: If the finish shows signs of wear or minor damage, promptly touch it up to maintain the protective layer on the siding.
Conclusion
Hardie board siding offers exceptional durability and beauty, but proper care is essential to preserve these qualities. Soft washing is the safest, most effective cleaning method, ensuring that your siding remains undamaged and attractive. Avoiding sodium hypochlorite and opting for approved, gentle cleaning solutions will help maintain the siding’s finish and extend its lifespan.
At Bean’s Power Clean, we prioritize the safety and quality of your home’s exterior. Our professional soft washing services are designed to protect your investment while delivering a pristine, fresh appearance. For a shine that’s keen, call Bean’s Power Clean at (910) 718-5450 to schedule your next soft washing service.
