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Roof Cleaning

How to Clean Your Asphalt Shingle Roof: A Comprehensive Guide

how to clean asphalt shingles
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Asphalt shingle roofs are a popular choice for homeowners due to their durability, affordability, and ease of installation. However, like any other type of roofing material, asphalt shingle roofs require regular maintenance and cleaning to ensure their longevity and performance. In this article, we will discuss the best way to clean asphalt shingles, the do’s and don’ts of cleaning, and the type of shingles that are suitable for cleaning.

Why do Asphalt Shingle Roofs Need Cleaning?

Compared to concrete tiles, asphalt shingle roofs are more susceptible to algae and moss growth, especially in areas with high humidity or moisture. Over time, the accumulation of dirt, debris, and organic matter can cause discoloration, staining, and even damage to the shingles, reducing their lifespan and aesthetic appeal. Cleaning your roof regularly can prevent these issues and extend the lifespan of your shingles. Cleaning the roof regularly helps remove these contaminants, preserving the roof’s appearance and extending its lifespan. 

Why do Asphalt Shingle Roofs Need Cleaning

Rinse First: Preparing Your Asphalt Shingle Roof for Cleaning

Preparing Your Asphalt Shingle Roof for Cleaning

Before you start cleaning your asphalt shingle roof, it’s essential to prepare the surface by removing any loose debris, leaves, or twigs. You can use a garden hose or a leaf blower to remove the debris gently. Once you’ve cleared the surface, rinse the roof with water to moisten the shingles and remove any loose dirt or dust. It’s essential to use a low-pressure setting to avoid damaging the shingles or dislodging the granules. It also helps to prevent any abrasive particles from scratching or damaging the shingles during the cleaning process. By rinsing your asphalt shingle roof first, you ensure a clean and smooth surface for a thorough and successful cleaning job.

Choose the Right Cleaner: Using Chlorine Bleach to Remove Algae and Moss

When it comes to cleaning asphalt shingle roofs, there are several types of cleaners available, including oxygen bleach, trisodium phosphate (TSP), and chlorine bleach. However, chlorine bleach is the most effective solution for removing algae and moss growth, which can cause unsightly stains and discoloration on the shingles. You can use a mixture of one part bleach and three parts water to create a cleaning solution.

Spray Carefully: Use a Sprayer to Apply the Cleaning Solution

After you’ve mixed the cleaning solution, it’s time to apply it to the roof. You can use a sprayer or a garden hose with a spray nozzle to distribute the solution evenly. It’s essential to apply the solution carefully, avoiding any direct contact with the shingles or nearby vegetation. You should also wear protective gear, such as gloves and goggles, to prevent any skin or eye irritation from the cleaning solution.

Rinse Thoroughly: 

After you’ve applied the cleaning solution, wait for 10-15 minutes before rinsing it off with a garden hose. It’s crucial to rinse the roof thoroughly, ensuring that no traces of the cleaning solution are left on the shingles. Leaving the cleaning solution on the shingles for too long can cause damage to the surface and reduce their lifespan.

Rinse Thoroughly

The Do’s and Don’ts of Cleaning Your Asphalt Shingle Roof

To ensure the best results and prevent any damage to your asphalt shingle roof, here are some do’s and don’ts to keep in mind:

The Do’s and Don’ts of Cleaning Your Asphalt Shingle Roof

Do’s:

  • Wear protective gear, such as gloves, goggles, and a respirator, when handling cleaning solutions.
  • Use a low-pressure setting when rinsing your roof to avoid damaging the shingles.
  • Use a sprayer or a garden hose with a spray nozzle to apply the cleaning solution evenly.
  • Rinse your roof thoroughly after applying the cleaning solution to remove any traces of the solution.
  • Clean your roof on a cool, overcast day to avoid the cleaning solution from evaporating too quickly.
  • Hire a professional if you’re not comfortable or experienced in cleaning your asphalt shingle roof.

Don’ts:

  • Don’t use a pressure washer to clean your asphalt shingle roof as it can damage the shingles or dislodge the granules.
  • Don’t use abrasive materials, such as wire brushes or scrubbers, to clean your roof as they can scratch the shingles and cause more harm than good.
  • Don’t mix bleach with other cleaning solutions as it can create toxic fumes.
  • Don’t use bleach or any other harsh chemicals on newly installed asphalt shingle roofs as it can damage the surface and void the warranty.

Type of Shingles: Which Ones Are Suitable for Cleaning?

Not all asphalt shingle roofs are created equal, and some types of roof shingles may not be suitable for cleaning, depending on their age, condition, and warranty. For instance, older shingles with worn-out granules or damaged surfaces may not withstand the cleaning process and may need to be replaced. Additionally, some manufacturers may not recommend the use of bleach or other cleaning solutions on their shingles, so it’s essential to check the warranty and installation guidelines before cleaning your roof.

What Happens if You Don’t Clean Your Roof?

Neglecting regular roof cleaning can lead to several issues and potentially costly consequences. When you don’t clean your roof, debris such as leaves, branches, and moss can accumulate over time, clogging gutters and downspouts. This buildup can cause water to pool and seep under the shingles, leading to leaks, water damage, and even mold growth. Additionally, the accumulation of debris creates an ideal environment for pests like rodents and insects to thrive. Ultimately, neglecting roof cleaning can compromise the structural integrity of your roof and decrease its lifespan. Regular cleaning and maintenance are essential to ensure the longevity and functionality of your roof.

The Best Way to Clean Asphalt Shingles: Summing Up

Cleaning your asphalt shingle roof is an essential part of its maintenance, and it can help extend its lifespan and aesthetic appeal. To clean your roof effectively, you need to rinse the surface, choose the right cleaner, spray the solution carefully, rinse thoroughly, and follow the do’s and don’ts of cleaning. It’s also crucial to check the type of shingles you have and their suitability for cleaning before starting the process. If you’re not comfortable or experienced in cleaning your roof, it’s best to hire a professional to do the job for you.

Conclusion

In conclusion, maintaining your asphalt shingle roof doesn’t have to be a daunting task, and with the right tools, equipment, and knowledge, you can keep your roof clean and in excellent condition for years to come. Follow the tips and guidelines provided in this article, and you’ll have a beautiful, clean roof that adds value and protection to your home.

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Exterior Cleaning Roof & Siding, Johnson, Iowa

Amazing! I had the roof, siding and soffit cleaned on my 14 year old home. I can’t believe the difference it made! It looks new again! Sullivan was great to work with. There was absolutely no trace they had been there, other than the clean house and roof! I am very pleased. I will refer my friends and family to Sullivan Roof Cleaning!

Jen Goemann, Johnson, Iowa

Siding and Deck Cleaning, Johnson, Iowa

I found Bruce and Maria via their Your Tube video demonstrating their approach to cleaning the “green” stuff growing on the north and east sides of my home. I recommend watching it, it’s exactly who they are and what they do.

My house, deck and patio look brand new! I wish I had taken before pictures. The improvement is dramatic.

They arrived as scheduled, worked efficiently and with respect for my property. The work was completed for exactly the bid they provided when they visited my home to provide a free quote. I wish all contractors were so reliable and transparent. I am a very satisfied customer.

Annette DeFrancisco, Johnson, Iowa

Cleaning Product Works-Des Moines

Bruce has done several roof cleanings for me and the results always exceed my expectations. He’s saved me thousands of dollars on my investment properties by making old roofs look brand new. He cleaned my gutters and siding in just a few minutes in what would have taken me hours with a power washer. With just a simple rinse, his cleaning solution removed dirt and grime that a pressure washer couldn’t remove. He’s got an amazing product.

Adam Lewis, Des Moines

Roof & Deck Cleaning-Ames, Iowa

Our roof and deck area look better than new and Bruce and Maria are responsible for this transformation. I am so pleased to have hired Sullivan Roof Cleaning. They were friendly, courteous, and experienced and delivered excellent results.

Marie McCuskey, Ames, Iowa

Roof & Deck Cleaning-Ames, Iowa

Our roof and deck area look better than new and Bruce and Maria are responsible for this transformation. I am so pleased to have hired Sullivan Roof Cleaning. They were friendly, courteous, and experienced and delivered excellent results.

Marie McCuskey, Ames, Iowa

Roof Cleaning-Pleasant Hill, Iowa

I was skeptical of this when my wife suggested it. I told her roofs were suppose to do this after time. I went to Menards to purchase a product and tried it in a small area ( no results) we went ahead and had it done and our roof looks like the day we had it installed. This is the best money we have spent to keep the house looking like the day we built it. GREAT JOB!!! I would recommend this to anyone.

Jeff Backous, Pleasant Hill, Iowa

Deck Cleaning-Granger, Iowa

You did an awesome job on my daughter’s log home, deck, railing, swing and chairs on the deck. They are totally impressed. My roof looks great, as well as, the stucco on front of my house. I appreciated your professionalism regarding communication and being where you said you would be at the time agreed upon.

Joan Clary, Granger, IA 09/15/2015

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Testimonials

Exterior Cleaning Roof & Siding, Johnson, Iowa

Amazing! I had the roof, siding and soffit cleaned on my 14 year old home. I can’t believe the difference it made! It looks new again! Sullivan was great to work with. There was absolutely no trace they had been there, other than the clean house and roof! I am very pleased. I will refer my friends and family to Sullivan Roof Cleaning!

Jen Goemann, Johnson, Iowa

Siding and Deck Cleaning, Johnson, Iowa

I found Bruce and Maria via their Your Tube video demonstrating their approach to cleaning the “green” stuff growing on the north and east sides of my home. I recommend watching it, it’s exactly who they are and what they do.

My house, deck and patio look brand new! I wish I had taken before pictures. The improvement is dramatic.

They arrived as scheduled, worked efficiently and with respect for my property. The work was completed for exactly the bid they provided when they visited my home to provide a free quote. I wish all contractors were so reliable and transparent. I am a very satisfied customer.

Annette DeFrancisco, Johnson, Iowa

Cleaning Product Works-Des Moines

Bruce has done several roof cleanings for me and the results always exceed my expectations. He’s saved me thousands of dollars on my investment properties by making old roofs look brand new. He cleaned my gutters and siding in just a few minutes in what would have taken me hours with a power washer. With just a simple rinse, his cleaning solution removed dirt and grime that a pressure washer couldn’t remove. He’s got an amazing product.

 

Adam Lewis, Des Moines

Roof & Deck Cleaning-Ames, Iowa

Our roof and deck area look better than new and Bruce and Maria are responsible for this transformation. I am so pleased to have hired Sullivan Roof Cleaning. They were friendly, courteous, and experienced and delivered excellent results.

Marie McCuskey, Ames, Iowa

Roof & Deck Cleaning-Ames, Iowa

Our roof and deck area look better than new and Bruce and Maria are responsible for this transformation. I am so pleased to have hired Sullivan Roof Cleaning. They were friendly, courteous, and experienced and delivered excellent results.

Marie McCuskey, Ames, Iowa

Roof Cleaning-Pleasant Hill, Iowa

I was skeptical of this when my wife suggested it. I told her roofs were suppose to do this after time. I went to Menards to purchase a product and tried it in a small area ( no results) we went ahead and had it done and our roof looks like the day we had it installed. This is the best money we have spent to keep the house looking like the day we built it. GREAT JOB!!! I would recommend this to anyone.

Jeff Backous, Pleasant Hill, Iowa

Deck Cleaning-Granger, Iowa

You did an awesome job on my daughter’s log home, deck, railing, swing and chairs on the deck. They are totally impressed. My roof looks great, as well as, the stucco on front of my house. I appreciated your professionalism regarding communication and being where you said you would be at the time agreed upon.

Joan Clary, Granger, IA 09/15/2015

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