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Soft Washing a Roof: What Is It & How to Go About It?

The roof of your house is the construction element most exposed to external conditions. Sunlight, rain, snow, ice, wind, and tree branches are some of the many factors that can cause damage to the roof over your head. Regularly cleaning your roof is an essential part of a house or building occupancy since it extends the overall lifespan of the roof and property.

One of the best ways to clean your roof with minimal damage is by employing the technique of soft washing.

In this article, we will discuss what is soft wash roof cleaning, and we will get into more detail on the chemicals used, the process, and the benefits of using this method. We will also provide step-by-step instructions on safely and effectively cleaning a roof using the soft washing method. 

Whether you are a homeowner or a professional roof cleaner, this article will provide valuable information on how to maintain the appearance and longevity of your roof.

What Is Soft Wash Roof Cleaning?

The approach to cleaning roofs that utilizes a low-pressure and high-volume cleaning system is called soft wash roof cleaning. Soft washing uses a blend of water and specialist cleaning chemicals to remove unwanted grime and stains.

The process is designed to be gentle on roofs and prevent damage to shingles, tiles, or other roofing materials. Soft washing is a more effective and efficient way to clean roofs than traditional pressure washing. Why? Because it helps to remove algae, dirt, and mold, while removing other stains that are difficult to eliminate with high pressure. 

The process is also more environmentally friendly, using less water and reducing the risk of water damage to the roof and surrounding areas. It does take a bit longer to complete, but that may be the only downside when compared to other techniques.

Overall, soft-wash roof cleaning is a safer, more efficient, and more effective way to clean your roof and maintain its appearance and longevity.

Soft Wash Roof Cleaning Chemicals: What Do You Need?

Soft wash roof cleaning chemicals are specialized solutions that are used to remove dirt, colorants, mold, algae, and other pollutants from roofs. Low-pressure cleaning systems use soft wash cleaning chemicals specifically designed for these systems, while high-pressure systems require the use of traditional pressure washing chemicals.

The main chemical used in soft wash roof cleaning is a cleaning solution specifically designed for roofs. This solution comprises a mixture of detergents, surfactants, and other cleaning mechanisms that operate concurrently to break down and clear dirt and stains from the roof. 

Some of the most common cleaning agents used in these solutions include sodium hypochlorite, which is an effective mold and algae remover, and sodium hydroxide, which is a strong degreaser.

Another chemical used in soft wash roof cleaning is a rinsing agent, which neutralizes the cleaning solution and removes any remaining dirt or stains. This agent is typically a solution of water and mild acid, such as vinegar, that helps to remove any remaining cleaning solution and dirt from the roof.

In addition to these chemicals, a soft-wash roof cleaning system requires water, a low-pressure pump, and a spray wand. It is important to use the proper portion of chemicals and water pressure to avoid harming the roofing material and surrounding areas. 

Consulting with a professional roof cleaning service is highly recommended to ensure that you are using the correct chemicals and techniques for your specific roofing material.

How to Soft Wash a Roof: Detailed Instructions

There are a few essential steps that you have to go through to soft wash a roof successfully. Detailed below are 5 steps that will help you with roof soft washing.

Step 1: Preparation

  • Examine the roof for any damage, such as missing or unconsolidated shingles.
  • Clear away any debris, such as leaves or branches, from the roof.
  • Conceal any nearby plants or landscaping to shield them from the cleaning chemicals.
  • Wear safety gear, such as a hard hat, safety goggles, and slip-proof footwear.

Before starting the soft wash cleaning process, inspect the roof thoroughly for any damage or hazards. Wear appropriate protective gear to safeguard yourself while operating on the roof.

Step 2: Mix the Cleaning Solution

  • Mix the appropriate amount of cleaning solution with water as per the manufacturer’s instructions.
  • Use a low-pressure pump to apply the solution.

Use the correct cleaning chemicals and the proper ratio. Use a low-pressure pump to lay the washing-up liquid on the roof in order to prevent damage to the roofing materials.

Step 3: Apply the Solution

  • Begin at the top of the roof and work your way down, applying the mixture in a back-and-forth movement.
  • Be sure to cover the entire roof, including the gutters and any hard-to-reach areas.
  • Allow the mixture to sit for the instructed time portion, routinely between 5 and 15 minutes.

Step 4: Rinse the Roof

  • Use a low-pressure pump and spray wand to flush the roof with clean water.
  • Start at the top of the roof and work your way down, making sure to rinse off the entire cleaning solution.

Use a low-pressure pump and spray wand to preclude damage to the roofing fabrics.

Step 5: Check for any remaining stains or areas that need additional or repeated cleaning

After the cleaning and rinsing process, it is important to check the roof for any remaining stains or elements that need to be rewashed. This will ensure the roof is completely clean, free of stains and dirt.

It is important to note that while the steps above provide a general overview of the soft wash roof cleaning process you should know. However, it’s best to consult a professional roof cleaning service to ensure you use the correct chemicals and techniques for your specific roofing material.

How Long Does It Take to Soft Wash a Roof?

How long does it take to soft wash a roof can alter by counting on the proportions of the roof, the quantity of dirt and stains present, and the specific cleaning methods used. On average, a residential roof can take anywhere from 2-4 hours to clean. However, the process can take longer for larger or more complex roofs.

The time it takes to apply the cleaning solution and allow it to sit also varies, usually between 5 and 15 minutes, depending on the cleaning solution used. Rinsing the roof with clean water typically takes less time than applying the solution, usually between 30 minutes to an hour.

It is significant to note that weather conditions can also affect the time it takes to clean a roof. The general recommendation is to avoid cleaning a roof on a hot, sunny day, as the cleaning solution can dry too quickly and be less effective. 

Cleaning a roof on a cooler, overcast day is ideal, as it allows the cleaning solution to work more effectively and reduces the risk of damage to the roofing materials.

Overall, the procedure of soft washing a roof can take a few hours, depending on the roof’s size and condition. It is important to use the correct cleaning methods and techniques to ensure that the roof is thoroughly cleaned while also preventing damage to the roofing materials. Contacting a professional roof cleaning service is always recommended for the best results.

Soft Wash Roof Cleaning: Is It a Good Way to Go?

Soft washing is the modality if you want to clean your roof securely and efficiently. This procedure removes dirt, algae, and debris from your roof using low-pressure cleansers and biodegradable detergents. It’s also great for cleaning sections that power or pressure washing can’t reach. 

Soft washing your roof regularly can assist in increasing the life of your roof, keeping it looking good, and avoiding stains and fading.

Our guide answers your question about how to soft wash a roof. However, if your roof is discolored and clogged with debris, the professionals at AA Brite can assist you. They provide roof cleaning services to renew and extend the life of your roof as part of their roof repair and roof coating services.

Some roofs may require a moderate etching soap to aid in the cleaning procedure. The folks at AA Brite utilize environmentally friendly cleansers to keep your house, plants, and pets safe throughout the process. 


Is it good to soft wash your roof?

Soft washing our roof is a good practice since it increases your roof’s lifespan, and you will avoid the damage that comes from pressure washing.

How long does soft wash last?

Soft washing typically lasts 1 to 3 years, depending on your property’s state and the rainfall in your location.

Do you rinse the roof after a soft wash?

Once finished, the solution is often left to sit for some time on the surface in order to remove everything down to the roots. Still, if sprayed on siding, it is typically washed off.

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