Maintenance is key to protecting your investment in James Hardie siding. Even though it’s designed to resist damage from moisture, pests, and weather, basic care helps extend its lifespan and appearance.
Simple steps like occasional cleaning, keeping gutters clear, and maintaining proper ground clearance can help prevent issues such as mildew, staining, or premature wear. This is especially important in climates like St. Louis, where humidity levels can increase the risk of moisture-related problems.
How to Clean James Hardie Siding Safely
James Hardie siding resists common issues like mildew and green spots. Still, it’s smart to give it a light cleaning from time to time.
What Cleaning Products are Safe to Use?
You don’t need strong cleaners. In fact, harsh chemicals can do more harm than good.
- Use mild dish soap and water
- Avoid bleach or ammonia-based products (no Windex)
- Stay away from high-pressure washers
A garden hose is your best tool. In our own homes, we just spray the siding off when doing yard work. That’s usually enough to keep it clean.
Pro Tip: Dish soap mixed with warm water can lift dirt without damaging the finish.
How Often Should You Clean It?
Most homeowners don’t need to clean James Hardie siding more than once or twice a year. If you notice dirt, bird droppings, or mildew, a quick rinse will do the trick.
Why Siding Clearance Is Important
After your siding is installed, keeping the right space between the siding and the ground is key to long-term performance.
How Much Clearance Does Hardie Require?
James Hardie recommends at least 6 inches of clearance above:
- Grass
- Mulch
- Landscaping borders
That 6-inch gap helps prevent water from soaking into the bottom edge of the siding.
What Can Go Wrong if Clearance Isn’t Maintained?
If you build up mulch or soil over time, moisture can reach the siding and soak upward. This is called wicking. It doesn’t mean the siding will fail, but it can shorten its lifespan or affect how it looks.
Key Takeaway: Always keep your landscaping trimmed down so the base of the siding stays dry and clear.
Need expert help with James Hardie siding maintenance? Contact Hawthorn for a free consultation. We’ll walk you through the best ways to protect your siding for years to come.
Keep Your Gutters Working Properly
Gutters play a big part in James Hardie siding maintenance. If they clog or overflow, water can run down the walls or pool at the foundation.
How Do Clogged Gutters Affect Siding?
If your gutters back up:
- Water can soak the fascia board
- It may run behind the siding
- It could lead to leaks near the foundation
That kind of water exposure can lead to damage not only to the siding but also to your home’s structure.
How Often Should You Clean Gutters?
- Check and clean your gutters twice a year
- If you have trees nearby, check more often
- Gutter guards can help reduce buildup and save you time
Final Tips to Keep Your Siding in Top Shape
Maintaining James Hardie siding doesn’t take much effort. But a few regular habits will go a long way.
- Spray siding with a hose once or twice a year
- Use only mild soap and soft cloths or brushes
- Keep at least 6 inches between the siding and the ground
- Clean your gutters so they drain water properly
James Hardie siding is built to last, but like anything on your home, it does better with a little attention.
In Summary
James Hardie siding maintenance is simple and worth the effort. Stick to mild cleaners, maintain your clearances, and clean your gutters to keep your siding looking great.
Contact Hawthorn today for a free quote or expert help with your James Hardie siding needs. We’re here to make sure your home stays protected and beautiful for years to come.
