What is Soft Wash Cleaning for Roofs?

Shahzad Masood


Maintaining a clean roof is essential for the longevity and aesthetic appeal of your home. While traditional pressure washing can be effective, it often poses a risk of damaging roofing materials. This is where soft wash cleaning comes into play. Soft wash cleaning is a gentle and effective method for cleaning roofs without causing harm. In this blog, we’ll explore what soft wash cleaning is, how it works, and its benefits.

Understanding Soft Wash Cleaning

Soft wash cleaning is a low-pressure cleaning technique that uses specialized solutions to safely remove dirt, algae, mold, mildew, and other contaminants from roofing materials. Unlike high-pressure washing, which can strip away protective layers and damage shingles, soft washing relies on biodegradable chemicals and a gentle stream of water to clean surfaces.

How Soft Wash Cleaning Works

  1. Application of Cleaning Solution: The process begins with the application of a cleaning solution. This solution is typically a mix of water, bleach, and surfactants. The bleach helps kill and remove organic growth such as algae and mold, while surfactants help the solution adhere to and penetrate the surface.
  2. Low-Pressure Rinse: After the cleaning solution has had time to work—usually about 15-20 minutes—a low-pressure rinse is used to wash away the solution and the loosened debris. The pressure used is similar to that of a garden hose, ensuring that no damage is done to the roofing materials.
  3. Post-Treatment: In some cases, a post-treatment solution may be applied to prevent the regrowth of algae and mold, extending the cleanliness and life of your roof.

Benefits of Soft Wash Cleaning

  1. Gentle on Roofing Materials: Soft washing uses low pressure, which prevents damage to shingles, tiles, and other roofing materials. This makes it suitable for a variety of roof types, including asphalt shingles, metal roofs, and tiles.
  2. Effective Cleaning: The cleaning solutions used in soft washing are highly effective at breaking down and removing stubborn stains and organic growth. This ensures a thorough clean that restores the roof’s appearance.
  3. Long-Lasting Results: The biodegradable chemicals used in soft wash cleaning not only remove existing growth but also help prevent future infestations. This means your roof stays cleaner for longer, reducing the frequency of cleanings needed.
  4. Environmentally Friendly: The solutions used in soft washing are biodegradable and environmentally friendly. They are designed to break down quickly without harming plants, animals, or the surrounding environment.
  5. Cost-Effective: By preventing damage and extending the life of your roof, soft wash cleaning can save you money in the long run. It reduces the need for repairs and replacements caused by the wear and tear of high-pressure washing.

When to Use Soft Wash Cleaning

Soft wash cleaning is ideal for:

  • Asphalt Shingles: High-pressure washing can strip away the granules that protect shingles. Soft washing cleans them without causing damage.
  • Tile Roofs: Tiles can crack under high pressure. Soft washing preserves their integrity while effectively removing contaminants.
  • Metal Roofs: Metal can be prone to denting and scratching. Soft washing avoids these risks by using gentle pressure.
  • Mold and Algae: If your roof has significant mold or algae growth, soft washing is particularly effective at eradicating these organisms without harming the roof.


Soft wash cleaning is a safe, effective, and environmentally friendly method for maintaining the cleanliness and longevity of your roof. By using gentle pressure and specialized solutions, soft washing can remove dirt, algae, and other contaminants without causing damage. Whether you have an asphalt, tile, or metal roof, soft wash cleaning is an excellent option to keep your roof looking its best and functioning properly for years to come. Investing in regular soft wash cleanings will not only enhance your home’s curb appeal but also protect your roof from potential damage, ensuring it remains in good condition.

And before you go, be sure to read through some of our other helpful posts!

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