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Clean Green Algae off Vinyl Siding Fast and Easy

Clean Green Algae off Vinyl Siding Fast and EasyVinyl siding is a low maintenance and durable material that is made with PVC. The product has become an increasingly popular choice for many home exteriors. Even though vinyl is a low maintenance material it will require some maintenance as dirt and algae will collect on the surface. In todays post I will look at how to clean green algae off vinyl siding. Because there is a lot of rain where I live, my vinyl siding has a tendency to get covered with algae and has to be cleaned annually.

In general a home-owners should clean and maintain their vinyl siding regularly. Leaving the unsightly mildew and algae cab permanently stain the siding. Simple maintenance and cleaning of your vinyl siding is fairly straightforward. Just ensure that you know the best cleaning methods before you get started.

How to clean siding

  • First fill a bucket with warm water and dish soap.
  • Use a long-handled deck brush with soft bristles to gently scrub the surface .
  • You can also use a cloth dipped in the soap and water to scrub those areas that are dirtier.
  • Using a garden hose set at a gentle spray and rinse the area that you have just scrubbed.
  • Start with the vinyl siding at the bottom of your house and work your way up the wall. This will help to prevent streaking from the soapy water running down your house.

You will want to clean only a few square yards of siding at a time to avoid the area from drying which will result in further staining. I generally wash an area that I can easily reach without having to move very much, If your vinyl siding has a textured surface, you will want to use a brush with soft bristles as a cloth will not get into the ridges of the siding.

Where different materials meet

If you have other materials such as brick, or wood on your home use caution. Covering the these areas so that runoff from your siding will not affect the area is a good option. All areas of your home where 2 different building materials meet such as where wood trim meets the vinyl siding are areas where possible water infiltration could occur.

where vinyl siding meets brick This is a great time to check and maintain these areas. Look to see that any flashing or caulking in these areas are water tight and shedding water as intended. This is also a great time to seal all cracks or holes to prevent water infiltration. Use a high quality paintable caulking when sealing any problem areas.

Use caution when rinsing these areas as the flashing is intended to shed water running down the siding. Caulking is also intended to be water resistant not water tight. Spraying these areas using a garden hose and not using some common sense. May allow water in get behind the siding that can eventually lead to wood decay.

I do not recommend it but

If you want to speed the process of cleaning your vinyl siding along, you can buy or rent a power washer.

  1. Make sure you have read and follow the power washer instructions thoroughly.
  2. Always make sure you use the power washer pointing downward because if you don’t you will end up with water behind the vinyl siding.
  3. Set the power washer at the lowest water pressure setting

 

If you have spots of mold or mildew on your vinyl siding then you can simply use a name brand household cleaner. Always test the cleaner on a small portion of your vinyl siding. Apply it in an inconspicuous place to make sure it will not discolor your siding .

However, I like to use a homemade solution where possible because it saves me money and works as the commercial cleaners.

I have found that the best homemade vinyl siding cleaner solution is 3 parts water to 1 part bleach. Another common homemade solution is mixture of liquid dish soap, liquid bleach, and water. While my homemade solution is cheaper it is not always practical to use. Bleach will harm plants and lawn so be careful where you use it. It is best to just find a siding cleaner that is most convenient and effective for you. Warning : always use caution when spraying bleach around plants because it will kill them

Recommended commercial cleaner to Clean Green Algae off Vinyl Siding

Not all vinyl siding stains are mold or mildew. You may end up with dirt, soot on the outside of your home. If that is the case, there are a number of general cleaners that are approved for use on vinyl siding. I have found that 30 Second Cleaner is a good all around cleaning solution that is not harmful to plants. When using a commercial cleaner always read the label carefully to find out if they are effective and safe for use on vinyl siding .

Increasingly, vinyl siding is being used commonly on home exteriors, this is because it is easy to maintain and is attractive, Cleaning your vinyl siding will keep it in good condition. Before you do, make sure you understand what is necessary and the proper procedure to keep your vinyl siding looking its best.

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If you have any questions or comments about how to  Clean Green Algae off Vinyl Siding please leave them below .

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8 thoughts on “Clean Green Algae off Vinyl Siding Fast and Easy”

  1. I used to have the same problem as you when I lived in the northern part of the country. I had some kind of vinyl siding and it would get really dirty in the rainy season. I would try to clean it up using detergent but it didn’t go away completely. I wish I had found your article back then.

    Does warm water work better than cold water? Or there’s isn’t any difference? I never tried using dish soap, but do you think it’s better than my detergent? I think scrubbing is the most important step, so I doubt it matters a lot what kind of soap you’re using. But I’m waiting for your opinion.

    • Hi Heather thank you for your comments , I always use warm water when I clean my vinyl siding I find it works better on the mildew. I think that what type of soap you use is not as much as a concern , I agree that the scrubbing is the magic , the soap just creates a friction break on the siding . 

  2. This seems to be a great prodct! I see that it is safe for plants, is it also safe for pets and children? I have both, and I have dirty siding as well. andI do not want to use bleach!

    I do not have a lot of experience with this, will I be able to do this job by myself, or should I recruit help? I have a two story house.

    Any helpful suggestions would be very appreciated.

    Thank you so much for this article, my neighbors will be so happy to see my house get cleaned.

    Stacie

    • Hi Stacey  the 30 second cleaner is plant safe but it needs to be rinsed off any plants that it comes in contact with . I would avoid having it around pets and would thoroughly rinse any areas where pets and children would be in contact with it . As far as cleaning your siding on a 2 story home you should use a good extension ladder . I would recommend hiring your cleaning job out if you are not familiar with using ladders . 

  3. Nice to read about this informative article on how to  Clean Green Algae off Vinyl Siding. Although this technology is new to me its just getting popular area here. I see a great opportunity in this because one can set this business and be cleaning green algae off vinyl siding on a commercial level. I will read and study more about  how to maintain and clean green algae. 

    Because I’m new to this I’m going to take a closer look and see more advantages to it. 

    Thanks 

  4. Thanks for posting – I found your article extremely clear and informative. I particularly appreciate the distinction you make between water resistant and water tight when it comes to paintable caulking. I had not thought about it like that. Is there any particular high quality brand you would recommend for the caulking? Also, I find the “30 Second Cleaner” to be quite the good choice rather than having to risk making mistakes when trying to get the proper balance of elements with the homemade cleanser possibilities.

    Thanks for the guidance, and all the best,

    Norman

  5. Hi!

    I currently live in an apartment, but when I do get a house and it’s exterior is made of vinyl siding, I’ll definitely take this information and use it for cleaning. I have a question though. Why don’t you recommend a pressure washer? Is it because it can get other materials wet and possibly cause damage?

    I look forward to your answer. And thanks for sharing!

    B

    • Thank you for your comment, I do not recommend that anyone wanting to clean their vinyl siding that is not familiar with how homes are constructed to use a pressure washer to do so . If you have some experience then you could use a pressure washer set on a very low setting . And yes keeping water from getting behind the siding is the risk . In newer construction siding is applied over a rain screen in these types of installations the siding is fastened on wood strips , this leaves an air gap so that if water gets behind the siding it will run away . So just use caution and determine if your home has rain screen or not .

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