5 Ways to Keep Your Siding Mold Free

Dealing with pesky mold? While many siding options today are able to fight against mold, if your home is covered in older siding, you may be struggling with mold and mildew. The exterior aesthetic of your home affects its curb appeal, and its first impression. It’s important to keep it clean and mold free to ensure your exterior looks great and lasts longer. Here are the 5 ways to keep your siding mold free! 

1. Regular Checks and Cleaning 

To keep your siding as mold-free as possible, it’s important to conduct consistent checks of your exterior and clean it regularly. Take a look around the exterior of your home from time to time, and if you notice any mold growth, act quickly. Use a diluted solution of bleach and water to get rid of the mold and stop future growth. Even if you don’t see any mold, regularly cleaning your siding will prevent build up and keep your siding looking brand new. If you have older siding, use your garden hose and a soft bristle brush to clean your siding every few months, and make sure to spray in a downward direction to prevent moisture buildup in the siding panels.

2. As Much Direct Sunlight As Possible

Mold typically grows in spots that are dark and damp. Allow as much direct sunlight as possible to hit your home. Trim your trees, maintain your shrubs and make sure as much natural light is reaching your exterior. This will keep mold away from your siding, keeping your exterior fresh and beautiful! 

3. Get Rid of Climbing Vines

Climbing vines can give your home a charming, artistic appeal, but they can also lead to mold growth. Since the vines cover so much of the surface, they make it difficult for your siding to dry out, and also block direct sunlight from reaching your siding. This makes it easy for mold and mildew to grow. If you have climbing vines and are having issues with mold and mildew, it’s time to cut them back and get rid of them.

4. Maintain Your Gutters

Another way to keep your siding mold free is to maintain your gutters and make sure they’re leading water away from your home. If your gutters become clogged and water ends up spilling over, it will create a moist environment on your siding. This will foster the growth of mold. Do whatever you can to keep your exterior siding dry to ensure mold doesn’t grow and thrive. 

5. Watch Your Lawn Sprinklers 

If you use lawn sprinklers to water your lawn and garden, make sure they don’t reach your siding. Especially if your sprinklers are located close to the foundation of your home, you’re going to want to move them away to ensure they don’t reach your siding. Moisture on your siding creates an ideal environment for mold growth, and it’s up to you to hinder that environment as much as possible.

Keep your siding free of mold with these 5 tips! Your home will maintain its beauty and look good as new.

Why Your Vinyl Siding Can Get Moldy (And How to Treat It)

Vinyl siding is one of the most durable and affordable siding options out there, making it the most desired cladding material in North America. It’s beautiful, low-maintenance and eco-friendly, and what more could you want from a siding?

Although vinyl siding boasts many amazing features, it doesn’t mean that it’s immune to issues, and one of those issues is mold. Mold and mildew can accumulate on vinyl siding, which can be a downside to the cladding material, but luckily there are easy ways to treat it!

Why Does Vinyl Siding Get Moldy?

Yes, vinyl siding is low-maintenance, but mold can still grow on it for a number of different reasons. If you’re thinking about investing in vinyl siding, or are curious because you have vinyl siding on your home now, it’s helpful to learn what leads to mold and mildew.

Dirt Build Up

When dirt accumulates on the surface of your siding, it can lead to the build-up of mold and mildew. Dirt on your siding not only makes your home look unclean, but can result in mildew since fungus feeds on dirt and dust. You also have to be careful of any trees located in close proximity to your siding. Sugary sap can end up on your siding, which acts as food for fungus. Mildew and mold feed on sugar, dust, dirt and other things attached to your siding, so it’s important you keep your siding clean.


Water can also cause mold and mildew to develop on your vinyl siding. If moisture gets stuck behind or in your siding, you may end up finding mold and mildew on your exterior. This can be attributed to anything from rainwater, to washing your siding with a power washer, to a broken gutter dripping on your siding. If there’s excessive moisture that causes your siding to stay wet, mold is likely to start growing.

Not Enough Sunlight

A lack of sunlight is another reason for the growth of mold and mildew. Mold flourishes in dark places, so if an area of your house doesn’t get much light, it’s more prone to mold and mildew. If there’s a porch roof or tree that’s preventing part of your house from ever getting light, you may want to consider removing it.

How to Treat Mold on Your Siding

To remove the mold on your siding, all you have to do is wash it with a homemade oxygen bleach solution. Mix powdered oxygen bleach with warm water and apply it to your siding. This will work best when your siding is dry and in the shade rather than sun. Allow the solution to sit and fizz on the siding for 10 minutes, then scrub with a brush and rinse with a garden hose.

Another option is using a pressure washer, but you have to be careful if you choose to do so. If you use it improperly, it can cause serious damage to your siding, leaving you worse off than you were in the first place. The water from a pressure washer can be driven into cracks, causing water damage to your home. Make sure to read the instructions and use caution if you decide to go this route.

Vinyl siding can get moldy, but as long as you maintain it and treat it when you see it, your home will be clean and mold free!