How to Get Rid of Mold on Outside Wall of House in Florida

written by

Junk Home Buyers

posted on

June 15, 2024

how to get rid of mold on outside wall of house in florida

Table of Contents

Do you wonder why mold grows on Florida home exteriors despite your efforts? It’s due to Florida’s high humidity, making it perfect for mold growth. Homeowners often face the challenge of removing mold from their exterior walls.

Effective mold removal and prevention are key. This guide will show you how. You can keep your exterior walls mold-free, creating a clean, safe place to live.

It’s important to know if your mold issue is big or small. Small projects, up to 10 square feet, can be done yourself. Wear eye protection and gloves for safety1.

However, tasks over 10 square feet might need experts. This is what the Environmental Protection Agency suggests. Tough molds like black mold often need professional treatment. Household bleach might not work2.

When you remove mold, wet the area first to stop spores from spreading1. A HEPA vacuum helps clean without spreading mold. It’s a good idea to have professionals handle this, like AdvantaClean in Florida. They have the best tools and training for mold removal2.

Key Takeaways

  • Florida’s high humidity and moisture levels create ideal conditions for mold growth on exterior walls2.
  • Small mold removal projects should not exceed 10 square feet and require minimal protective gear12.
  • Professional mold removal services use high-grade equipment and follow industry standards for safe and effective remediation2.
  • Misting moldy materials with water before removal can reduce spore and dust dispersal1.
  • Using a commercial HEPA vacuum cleaner and keeping work areas unoccupied are crucial steps in the mold remediation process1.

Understanding Mold and Its Growth Conditions

It’s key to know about mold and how it grows, especially for keeping our homes clean and safe. Mold is a fungus important for nature, but it’s bad news in our houses.

What is Mold?

Mold comes in many types, with about 100,000 known ones3. Its spores are tiny, measuring from 3 to 40 microns3. In wet places like Florida, mold easily grows because it loves moisture.

Critical Requirements for Mold Growth

Mold likes to grow where it’s damp and warm. It needs the moisture level to be like a 70% humidity34. Florida’s high humidity makes it a perfect spot for mold to spread.

Controlling moisture is the best way to fight off mold34. Keeping indoor spaces dry and well-ventilated helps. In Florida, using the right air conditioning can also stop mold from growing.

With Florida’s constant dampness, mold finds a great place to live in homes5. For example, Alternaria prefers wet areas like bathrooms5. And Aspergillus can grow in AC units, leading to health issues5.

Common Causes of Outdoor Mold in Florida

Florida’s weather significantly aids outdoor mold growth. High temperatures and humidity make a perfect mix for mold to thrive. This is especially true on the outside of houses.

Florida’s Humid Climate

Florida’s humid weather means mold has plenty of moisture to grow. Mold needs over 70% relative humidity to start growing3. With Florida’s high humidity, homes here are prone to mold problems6. The constant humidity causes mold to frequently appear on walls. This leads to regular efforts to remove it.

Frequent Rainfall and Moisture Accumulation

But it’s not just the humidity. Frequent rain and storms also contribute to mold. After just one day of water damage, mold can already be growing6. This is major for Florida, as it faces a lot of rain. Mold often affects wood due to the elevated levels of moisture.

For Florida homeowners, handling exterior wall mold is an ongoing duty. Using good air conditioning is advised to control indoor moisture3. It also helps to quickly deal with any water leaks. Increasing fresh air in damp spots cuts down on mold chances significantly6.

Identifying Mold on Exterior Walls

Spotting mold on your home’s outside is crucial. There are clear signs to look out for. Catching mold early helps a lot in stopping it from spreading.

Mold is easy to see. It shows up as black, green, or brown patches in wet, shady places. It looks like uneven spots or lines on surfaces.

If you smell something musty outdoors, it might be mold. Even if you can’t see it, that smell could mean mold is there. In Florida’s damp weather, mold in the air is common. So, noticing these smells matters for preventing it7.

You can also feel mold. It often feels slimy or wet to the touch. Any wall part that feels off could be hiding mold.

Mold often grows unseen for a while, so checking often is wise7. After heavy rain or storms, be sure to look. Living away from the coast in Florida means you face more mold risks7.

Keep your home dry and well-aired to fight mold. Mold loves damp, neglected places. Taking care of your house is key to avoid mold8.

Think you have mold but can’t see it? Pro testing gives better results than DIY kits7. It tells you what kind and how much mold is there. This helps with the right cleanup plan.

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To truly prevent mold in Florida homes, stay ahead. Check often and tackle any hints of mold fast. It’ll protect your home and health from the dangers of mold.

Health Risks Associated with Outdoor Mold

Living in places like Florida means you face big health risks from outdoor mold. It’s vital to know about these dangers for your health’s sake.

Allergic Reactions

Being around outdoor mold can set off allergies. Mold types common in Florida, like Alternaria, might make you start wheezing, get a runny nose, or have itchy skin and eyes5. Kids and the elderly often feel these effects more, with symptoms such as a stuffy nose, red and watery eyes, and a frequent cough7.

Respiratory Issues

Outdoor mold also puts your lungs at risk. For instance, Aspergillus mold in AC units or damp places can cause breathing problems and lung infections5. It could even add to Sick Building Syndrome, triggering a constant cough, headaches, and sinus issues in those spaces7. You should be cautious about Black Mold, which releases mycotoxins that might lead to long-term sinus troubles and asthma5.

health risks outdoor mold

Effective Mold Removal Methods

Maintaining a healthy environment is key, especially in humid places like Florida. There are various ways to remove mold. The method used often depends on how bad the mold is and where it’s found.

Using Household Cleaners

Start by using home cleaners against mold. For small mold problems, mixing baking soda, vinegar, and water works well. This is great for areas that are often wet, like near faucets9. Make sure you protect yourself with a mask, long-sleeved clothes, safety glasses, and gloves to stay safe9. Check how wet the area is with a moisture meter before you begin9.

Commercial Mold Removal Products

If home solutions don’t work, turn to stronger commercial items. The RMR-141 Cleaner effectively kills over 120 harmful microbes, including mold and mildew10. Likewise, the MoldArmor Cleaner shows quick visible results against mold in just one minute, making it a top pick for fast and thorough cleaning10.

  • Opt for green products? The Botanical Decon 30 Disinfectant from Benefect, made from thyme oil, is all-natural10.
  • CLR Mold & Mildew is safe for the environment and septic systems10.

For bigger jobs, check out items like mold foggers and air scrubbers from The Home Depot9. Using these, along with professional help, can drastically improve your home’s safety and cleanliness.

ProductEffectivenessSpecial Features
RMR-141 DisinfectantEffective against over 120 microorganismsKills mold, mildew, and bacteria10
MoldArmor Rapid Clean RemediationVisible results in 60 secondsQuick action10
Botanical Decon 30 Disinfectant100% bio-basedDerived from thyme essential oil10
CLR Mold & MildewSeptic safeEPA Safer Choice product10

Step-by-Step Guide on How to Get Rid of Mold on Outside Wall of House in Florida

To remove mold from outside walls in Florida, prepare well and be safe. It’s key to follow a process. This ensures your effort lasts and is effective.

Preparation and Safety Measures

First, focus on safety. Wear a mask, long clothes, goggles, and gloves to stay safe from mold9. Check for moisture with a meter. If it’s wet, use a sprayer to keep spores down9. Also, turn off the AC, seal doors, and use fans to contain the mold9.

Applying Cleaning Solutions

Pick the right cleaner for your mold. Natural cleaners, like baking soda and vinegar, work for black mold. Or choose chemical cleaners for tougher jobs9. Spread the solution evenly over the area. Then, scrub hard to get rid of all visible mold.

Rinsing and Drying the Area

After scrubbing, rinse everything well with clean water. Next, completely dry the space. This stops more mold from growing. Use fans or dehumidifiers to speed up drying.

Follow these steps carefully. You’ll keep the outside of your home mold-free. For big problems, Florida’s mold experts can provide more help and peace of mind.

Preventative Measures to Avoid Outdoor Mold

To avoid outdoor mold, you need a mix of strategies. These include keeping things clean, regular checks, and handling moisture. Knowing these things helps keep your outdoor space free of mold.

Regular Maintenance

Keeping your home in good shape is key to stopping mold outside. Check for mold often and fix it right away. Also, keep gutters, downspouts, and walls well-maintained to stop water from staying and mold from growing.

Seal and paint all wood, masonry, and other surfaces properly. Clean them with anti-mold stuff regularly. Plus, cutting plants near your home helps air flow better, which keeps mold away.

Controlling Moisture Levels

Mold loves wet spots, which is why controlling moisture is so important. Plus, most molds need very wet conditions to grow3. They like materials that stay damp3. So, stop the water to stop the mold.

Fix any leaks and make sure your drainage works. Add ventilation in damp places like basements to lower water in the air. People feel better when the air is dry, and this also helps keep mold away3.

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Need more tips on beating mold in Florida? Check out this Managing Mold in Florida Homes guide!

When to Call Professional Mold Removal Services in Florida

Knowing when to call professional mold removal services in Florida is key to a healthy home. You should watch for certain signs that say it’s time for expert help. It’s also vital to pick the best service provider for your needs.

Signs You Need Expert Help

In Florida, expert mold removal is crucial after big rainstorms or hurricanes hit7. It can seriously affect your health, causing issues like heart symptoms in babies and persistent coughs for those with breathing problems711. If mold is spreading over large areas, even on your clothes and furniture, experts should be called in11. Also, the results from home mold tests can be wrong. So, it’s wise to get professional testing for the true picture117. If you’re facing health problems that might be related to mold, that’s another clear sign to bring in the experts11.

Choosing the Right Mold Removal Service

Choosing the right mold removal service means considering a few important things. Pick a service that’s licensed and insured, say the pros. This way, you make sure the job is done right11. Mold removal includes finding the source, sealing it, cleaning the air, getting rid of the mold, and cleaning up completely11. The pros have the right tools and know-how for the best results11. Nearly 70% of homes in the U.S. have mold, and over half have faced mold problems. So, go for a service that offers complete remediation11. Just remember, machines that use ozone can only deal with some mold and can leave a strong smell for a while12.

DIY Mold Removal vs. Professional Services

Choosing between DIY and professional mold removal needs careful thought. Over 50% of US houses deal with mold11. In Florida, mold affects around 70% of homes, showing it’s a big issue11.

Pros and Cons of DIY Mold Removal

DIY methods are cheaper for small mold issues. You can clean tile mold in bathrooms for under $1013. If it’s less than 10 square feet on drywall, you might fix it yourself13. Yet, DIY tests sometimes give wrong info because of how you sample11. If you see mold, you might think you don’t need a pro check13.

Advantages of Hiring Professionals

In Florida, pros bring big benefits. They follow strict sampling methods to test right11. Their skills and tools let them do a complete job, finding the mold’s source and stopping it from spreading11.

Experts are a must for big areas, toxic molds, or finding the root cause11. They’re crucial in places like southeast Michigan for big cost issues14. Time-wise, they’re faster because they can reach hidden mold easily11.

So, choosing pros means a more thorough and safer treatment. They have the skills, tools, and methods for a job well done11.

CategoryDIY Mold RemovalProfessional Services
CostUnder $10 for small issues13$400 to $1,000 for inspections11
AccuracyLikely errors in home test kits11AIHA standard protocols11
SafetyRisk of improper handling13Licensed and insured professionals11
TimeMay take longerSpecialized equipment saves time11

Using Natural and Eco-Friendly Mold Removal Solutions

Choosing natural and eco-friendly ways to get rid of mold is safe for your health. It keeps your home safe for everyone. These methods work well against mold without harsh chemicals.

Benefits of Natural Cleaning Methods

Just think about it, white vinegar, a common kitchen item, can do so much. It kills most mold spores, viruses, and bacteria. This makes it a powerful yet natural option for getting rid of mold15. Using natural solutions also lowers the risk of exposure to harmful chemicals in regular cleaning products.

There are some common ways to remove mold naturally:

  1. Tea tree oil is effective, though a bit more costly. Mix two teaspoons with two cups of water. It will remove mold and keep it away for a while15.
  2. Citrus seed extract is odorless when mixed with two cups of water. It’s another good option for removing mold naturally15.
  3. Three percent hydrogen peroxide also works well. Spray it on, wait 10 minutes, then wipe. It’s a simple and effective way to fight mold15.
  4. Baking soda can be dissolved in water or a mix of water and vinegar. It’s good at getting rid of mold and leaves no smell behind15.

Preventing mold is important too. Regularly wipe down any damp spots and use a dehumidifier. Spraying vinegar on damp areas and fixing leaks fast helps keep your home mold-free15.

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Mold Removal MethodEffectivenessCost
White VinegarKills 82% of mold spores$3 for vinegar + $2 for brush16
Tea Tree OilLong-lasting effectsApproximately $10 for a small bottle
Citrus Seed ExtractMold removal without odorDepends on brand; moderate
Hydrogen PeroxideEffective with 10-minute applicationLow cost, widely available
Baking SodaNatural disinfectantVery low cost

Impact of Mold on Your Home’s Exterior

Mold on your home’s outside can cause big problems. It affects how your home looks and its structure. Knowing the effects of mold helps keep your home nice and sound. Mold spores are tiny, from 3 to 40 microns. This makes them easy to float in the air and land on different surfaces3.

Damage to Walls

Mold can really hurt your walls on the outside. It shows up as greenish to black patches. They love places that are very damp, like over 70% humidity3. These patches can get into the walls and make them decay. This makes your walls weaker. Places with lots of rain or high humidity, like Florida, are at higher risk. But, you can lower this risk by reducing available moisture, the main thing mold needs to grow3.

Curb Appeal

Mold makes your home look worse, affecting its curb appeal. You might notice a musty or earthy smell from the mold. Visually, mold looks bad and hints the house isn’t well-cared for3. A home with mold is worth less to buyers. They fear the neglect and the costs of fixing the mold. Keeping moisture low and improving air systems keeps your home looking good3.

To learn more about preventing mold damage, check guidelines from trusted sources like managing mold in Florida home. Keeping your home’s exterior mold-free saves its structure, value, and appeal.

Costs Associated with Mold Removal in Florida

It’s crucial for Florida homeowners to know the cost of mold removal. Prices can vary a lot based on important factors.

Factors Influencing Costs

The price of removing mold in Florida depends on a few things. This includes the mold type, how much is in your home, and where it is. Remediation for air ducts might cost between $600 to $2,000. For attics, the range can be from $1,000 to $4,00017.

If molds are on the surface, it’s usually cheaper to get rid of than molds deep inside. Higher costs come with toxic molds like black mold. This needs experts, special gear, and good ventilation17. The price is also affected by the average labor cost, which can be as high as $99 per hour in Florida, but usually around $7518.

Average Pricing for Services

In Florida, mold removal typically costs between $1,125 and $3,439, with a mean of $2,25417. Whole-home remediation can be a lot more, from $10,000 to $30,000. But for smaller spaces like basements, you might pay from $500 to $3,000. Bathrooms are usually cheaper, ranging from $500 to $1,00017.

average pricing mold removal services

Specialists use a program called Xactimate to estimate mold removal costs. On average, it’s about $2.50 per square foot. This includes cleaning with a HEPA vacuum and using antimicrobial treatments18. So, for a 1,000-square-foot house, the cost could be around $2,500. If you have a 2,000-square-foot house, it might cost about $5,00018.

LocationCost Range
Air Ducts$600 to $2,000
Attic$1,000 to $4,000
Basement$500 to $3,000
Bathroom$500 to $1,000
Crawl Space$500 to $2,000
Drywall$1,000 to $20,000
HVAC$3,000 to $10,000
Whole House$10,000 to $30,000

Maintenance Tips for Mold Prevention

To keep your Florida home free from mold, you need to maintain it well. I’ll share maintenance tips for mold prevention with you, so you can keep mold at bay:

  • Regular Inspections: Check your home often to spot mold early, especially in places like basements and attics. Sometimes, mold hides in walls or ceilings, not seen until it’s a big problem19.
  • Control Humidity Levels: Mold loves moisture, so keep humidity low. If the air is less than 70% humid3, mold finds it hard to grow. Use dehumidifiers and make sure rooms have good airflow to keep them dry19.

Using the best practices for outdoor mold removal is key for stopping mold long-term. Let me give you some good strategies:

  1. Don’t choose too big air conditioners. They might not remove enough moisture from the air, letting mold grow3. Pick units with variable speeds to help keep the air clean and dry, preventing mold.
  2. Use products that resist mold. Mold-repelling drywall and paint work great in wet areas like bathrooms. This makes it much harder for mold to start and spread19.

Following these maintenance tips for mold prevention will keep your home healthy and mold-free. Always remember, cutting down moisture is the top way to stop mold. It needs a lot of water to grow3. Be vigilant in your upkeep to protect your home from mold.


In Florida, dealing with mold on the walls is crucial. The state’s warm and wet weather makes homes prone to mold and mildew20. Homeowners must stay alert to keep their living space safe. They also need to know how to get rid of mold properly. This keeps their homes looking good and free from harm.

To fight mold, you need to understand its main causes. These include too much moisture in the air and lots of rain. Mold can quickly spread if given the chance, especially in very humid conditions4. Preventing mold outside means keeping things dry and doing regular upkeep on your house.

Knowing how to remove mold is key, whether you do it yourself or get professional help. Running your air conditioner on the right setting helps by lowering the humidity in your home4. When you’re not at home, it’s smart to unplug your appliances. This simple habit can protect against damage and make your home safer20. Doing these things will keep your home healthy and last longer.


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