How To Get Mold Off Wood Deck

How to Get Mold Off a Wood Deck: A Complete Guide

Mold on your wood deck is not only unsightly, it can also pose health risks. Luckily, with the right approach, you can effectively remove mold and restore your deck's beauty. This comprehensive guide will walk you through the process, from preparation to prevention.

Assessing the Mold Situation

Before you start scrubbing, it's crucial to assess the extent of the mold infestation. A small patch of mold might require a different approach than a large, widespread growth.

Identifying the Mold:

• Type of Mold: While you may not be able to identify the exact species of mold, understanding if it's surface mold (easily removable) or deeply embedded requires careful observation. Deeply embedded mold might need more aggressive treatment or even professional help.
• Severity: Is it a small spot, a few scattered patches, or widespread across the deck? This dictates the cleaning method and materials you'll need.
• Wood Type: Different wood types react differently to cleaning solutions. Knowing your wood type (e.g., cedar, redwood, pressure-treated lumber) will help you choose the right cleaning products and avoid damage.

Cleaning Your Wood Deck: A Step-by-Step Guide

Once you've assessed the mold, you can begin the cleaning process. Remember safety first! Wear protective gear including gloves, eye protection, and a mask to avoid inhaling mold spores.

1. Preparation is Key:

• Clear the Deck: Remove all furniture, potted plants, and other items from the deck surface.
• Sweep or Blow: Use a broom or leaf blower to remove loose debris, leaves, and dirt. This ensures the cleaning solution can effectively reach the mold.
• Pre-wetting: Lightly wet the deck with water to prevent the wood from drying out too quickly during cleaning.

2. Choosing Your Cleaning Solution:

Several options exist for cleaning mold from wood decks:

• Oxygen Bleach: This is a generally safe and effective option for most wood types. It's environmentally friendly and less harsh than chlorine bleach.
• TSP (Trisodium Phosphate): A powerful cleaner, but it's important to follow the manufacturer's instructions carefully and to rinse thoroughly. Wear protective gear.
• DIY Solution: Mix equal parts white vinegar and water in a spray bottle. This is a gentler option suitable for lighter mold infestations.

3. Applying the Cleaning Solution:

• Apply Generously: Use a scrub brush or garden sprayer to apply your chosen cleaning solution to the affected areas. Ensure even coverage.
• Let it Sit: Allow the solution to dwell for the time recommended by the manufacturer (usually 15-30 minutes). For tougher mold, you might need to let it sit longer.
• Scrub: Use a stiff-bristled brush to scrub the mold vigorously. For stubborn stains, you might need a pressure washer (low pressure setting).

4. Rinsing and Drying:

• Thorough Rinse: Rinse the deck thoroughly with clean water to remove all traces of the cleaning solution. This is crucial to prevent damage to the wood.
• Allow to Dry: Let the deck air dry completely before replacing furniture or using it. Avoid using the deck while it's wet to prevent slipping.

Preventing Future Mold Growth

Once your deck is clean, it’s important to prevent mold from returning.

• Regular Cleaning: Sweep or hose down your deck regularly to remove debris and prevent mold buildup.
• Proper Drainage: Ensure that water drains away from your deck properly to prevent pooling and moisture buildup.
• Sunlight and Air Circulation: Keep the area around your deck well-ventilated to allow for sunlight and air circulation. This helps keep the wood dry.
• Sealing: Applying a sealant can help protect your wood deck from moisture and prevent future mold growth. Choose a sealant specifically designed for wood decks.

By following these steps and implementing preventative measures, you can keep your wood deck mold-free and looking its best for years to come. Remember, if you're dealing with a large or particularly stubborn mold infestation, it's always best to consult a professional.