Home Handyman Hints - Cleaning Exterior Hard Surfaces

Cleaning hard exterior surfaces of homes in the Pacific Northwest requires special attention due to the region's damp climate, which can promote moss, algae, and mildew growth. Here are the steps to effectively clean these surfaces:

Steps to Clean Hard Exterior Surfaces

1. Preparation

• Gather Supplies: Pressure washer, garden hose, bucket, scrub brush, broom, protective gear (gloves, goggles), cleaning solutions (mild detergent, bleach, or specialized cleaners for moss and algae).
• Protect Surroundings: Cover plants, electrical outlets, and other sensitive areas with plastic sheeting or tarps.
• Inspect the Surface: Check for any damage that may need repair before cleaning (cracks, loose materials, etc.).

2. Remove Loose Debris

• Sweep or Rinse: Use a broom or garden hose to remove loose dirt, leaves, and other debris from the surface.

3. Apply Cleaning Solution

• Choose the Right Cleaner: For general dirt, a mild detergent will suffice. For moss, algae, or mildew, use a solution of bleach and water (1 part bleach to 3 parts water) or a commercial moss and algae cleaner.
• Apply the Solution: Use a pump sprayer or a brush to apply the cleaning solution to the surface. Ensure even coverage.

4. Scrub the Surface

• Use a Brush: For heavily soiled areas, use a stiff-bristled brush to scrub the surface. Focus on areas with moss, algae, or mildew buildup.

5. Pressure Washing

• Set Up the Pressure Washer: Connect the pressure washer to a water source and add the appropriate cleaning solution if necessary.
• Adjust the Pressure: Use a low to medium pressure setting to avoid damaging the surface. Start with the lowest setting and increase as needed.
• Wash the Surface: Begin at the top of the surface and work your way down, using a sweeping motion to evenly clean the area.

6. Rinse Thoroughly

• Use a Garden Hose: After pressure washing, rinse the surface with a garden hose to remove any remaining cleaning solution.
• Check for Residue: Ensure no soap or cleaner residue is left behind, as it can attract more dirt.

7. Treat Moss and Algae

• Preventative Measures: Apply a moss and algae preventative treatment to the surface to inhibit future growth. These are available in both liquid and granular forms.
• Ensure Proper Drainage: Improve drainage around the home to reduce the damp conditions that promote moss and algae growth.

8. Final Inspection

• Check for Missed Spots: Look over the surface to ensure all areas have been cleaned thoroughly.
• Make Repairs: Address any damage or deterioration discovered during cleaning.

9. Clean Up

• Store Equipment: Properly clean and store all cleaning tools and equipment.
• Dispose of Waste: Safely dispose of any waste or leftover cleaning solution according to local regulations.

Tips for Maintenance

• Regular Cleaning: Clean exterior surfaces at least once a year to prevent heavy buildup.
• Trim Vegetation: Keep trees and shrubs trimmed back to reduce moss and algae growth.
• Monitor for Damage: Regularly inspect exterior surfaces for signs of damage or wear.

By following these steps, you can keep the hard exterior surfaces of your home in the Pacific Northwest looking clean and well-maintained despite the region's challenging weather conditions.