Hello! This is Kakeru Koumuten Co., Ltd.!
This time, we will provide some information that may be helpful for those who are wondering, “The exterior walls are getting dirty, but is just high-pressure washing enough?” or “What role does high-pressure washing play?” So, if you’re interested, please take a look!
目次
- 1 What is the role of high-pressure washing?
- 2 Precautions Before High-Pressure Washing
- 3 Is high-pressure washing enough?
- 4 What are the benefits of high-pressure washing?
- 5 What are the Disadvantages of High-Pressure Washing?
- 6 Conclusion
- 7 Leave high-pressure washing and exterior painting to Kakeru Koumuten!
What is the role of high-pressure washing?
First, let’s talk about the role of high-pressure washing.
High-pressure washing refers to cleaning using a high-pressure washer to wash away dirt.
Rather than just washing away, it might be better to imagine it as shaving off the surface of the exterior walls and roof.
There are several purposes for cleaning the exterior walls and roof, such as removing moss and mold that have accumulated due to rain and humidity, chalking (if powder resembling the color of the exterior wall is present, it is likely that chalking is occurring), and peeling paint film.
Additionally, depending on the site, different cleaning methods are used,
and if high-pressure washing cannot completely remove the dirt, we will use chemicals for bio-cleaning.
For example, if mold is severely stuck to the exterior wall, it is strong and will quickly proliferate again. In such cases, it is better to remove it with bio-cleaning.
Generally, most of the dirt on customers’ exterior walls can be removed with high-pressure washing, but since there are various cleaning methods, I hope this information is helpful!
Precautions Before High-Pressure Washing
Caution: If the iron parts are significantly deteriorated due to rust, high-pressure washing may be counterproductive, so instead of high-pressure washing, we will perform scraping (the process of polishing and removing rust, etc.).
If the substrate is significantly deteriorated, applying high-pressure washing can cause further damage. Therefore, it is common practice to repair the substrate with sealing and to perform scraping on the wall surface instead of using high-pressure washing.
Depending on the type of exterior wall material, some may be damaged by high-pressure washing. For such walls, we use brushes or sponges and handle the cleaning manually.
Before performing exterior wall painting, it is essential to thoroughly remove moss, dust, and chalking powder with high-pressure washing. Otherwise, no matter how high-quality paint is used, it may peel off within six months to a year, so caution is necessary.
Additionally, on the day of high-pressure washing, please refrain from hanging laundry outside and remember to close the windows.
Since water is sprayed with high pressure, there is a risk of water splashing around, so protect areas that you do not want to get wet in advance.
If there are neighboring houses nearby, it is advisable to inform them in advance to avoid any troubles.
Some people may find the unfamiliar loud noise from the compressor to be disturbing, so when talking to neighbors, be sure to mention that there will be loud noises!
Is high-pressure washing enough?
Now, let’s get to the main topic.
“Is it okay to just do high-pressure washing without exterior wall painting?” The answer is…
Yes, high-pressure washing alone is sufficient!
While high-pressure washing temporarily removes dirt, it can also strip away the paint film that has been protecting the exterior wall material, leading to a loss of waterproofing and water-repellent functions, making it easier for moss and mold to develop. However, walls that lose their paint film are usually those that have not been painted for many years since the last exterior wall painting.
By regularly performing maintenance such as high-pressure washing, what lasts for 5 years can be kept beautiful for 10 years, so it seems that just doing high-pressure washing is fine!
(This was taught to us by our painting staff!)
However, in some cases, high-pressure washing alone may require the installation of scaffolding.
In such cases, the cost of scaffolding will be incurred even for washing alone, so
it may be better to do the exterior wall painting work together,
or it may incur some costs, but should we set up scaffolding and just do high-pressure washing,
or there may be cases where high-pressure washing can be done with ladder work without scaffolding,
so if you are unsure, please feel free to consult us at Kakeru Koumuten Co., Ltd.!
What are the benefits of high-pressure washing?
High-pressure washing is one of the effective methods for cleaning exterior walls, but I would like you to also be aware of its advantages and disadvantages.
First, let me talk about the advantages of high-pressure washing!
Advantages of Exterior Wall Cleaning
1. Removal of Dirt
Exterior walls are easily affected by rain, wind, pollen, dust, and more, and over time, dirt accumulates. By performing high-pressure washing, you can effectively remove this dirt and restore the appearance and cleanliness of the building.
2. Refreshing Effect on the Surface
Exterior walls tend to accumulate moss, mold, and chalking (a phenomenon where powder similar in color to the wall’s surface adheres). By removing these stains with high-pressure washing, you can refresh the surface of the exterior wall and regain a like-new appearance.
3. Pre-treatment for Painting
When performing exterior wall painting work, it is important to clean the surface of the exterior walls. High-pressure washing is excellent as a pre-treatment before painting, serving to enhance the adhesion of the paint film. This improves the durability of the paint and the beauty of the finish, making it one of the essential tasks.
4. Improvement of Durability
Regular exterior wall cleaning prevents overall deterioration of the exterior walls and enhances the durability of the building. In particular, if dirt accumulates, the exterior wall materials are more likely to deteriorate, so regular cleaning has the effect of extending the lifespan of the entire building.
What are the Disadvantages of High-Pressure Washing?
Next, I will thoroughly convey not only the advantages of high-pressure washing but also its disadvantages!
Disadvantages of Exterior Wall Cleaning
1. Peeling of the Paint Film
Since high-pressure washing uses strong water pressure, if the paint film is deteriorated, there is a possibility that it may peel off. Particularly with older paint films or those that have significantly deteriorated, caution is necessary.
2. Damage to the Underlying Material
The underlying materials of the exterior wall include wood and concrete. Excessive high-pressure washing may cause damage or erosion to the underlying material. Especially with deteriorated underlying materials, careful washing is required.
3. Impact on Surroundings
High-pressure washing involves high-pressure spraying, which may cause dirt and water to scatter during cleaning, potentially affecting surrounding buildings and plants. Of course, our company takes great care to minimize scattering and contamination to the surroundings within the mesh sheet while performing the work with utmost caution. However, it is a fact that such possibilities exist in general high-pressure washing operations.
Understanding the advantages and disadvantages of high-pressure washing is very important for future maintenance, inspection, and construction of exterior walls, so I hope you will remember this article as a reference!
Conclusion
Building cleaning applies not only to exterior walls but also to balconies and other areas. Regular cleaning, not limited to high-pressure washing, contributes to the longevity of both the paint and the entire building.
For the longevity of your precious home, let’s make sure to perform regular maintenance!
Leave high-pressure washing and exterior painting to Kakeru Koumuten!
At Kakeru Koumuten, estimates and inspections are completely free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten conducts everything from temporary scaffolding to roof work and exterior painting completely in-house.
We are confident that our “cost, quality, and efficiency” in exterior renovation work are unmatched compared to other companies!
We take pride in our exterior renovations, so we welcome competitive estimates!
We offer comprehensive construction guarantees and aftercare services, and we have received positive feedback for our appropriate proposals that align with cost performance and our customers’ future life plans!
Customer satisfaction is our priority, and we are confident in our work!
At Kakeru Koumuten, we do not charge until our customers are satisfied after the work is completed!
If you notice anything concerning after the work, or if you feel unsatisfied, please feel free to consult us, and we will respond promptly!
We want you to think, “I’m glad I chose them!” We take every request seriously.
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・Miyamae-ku, Kawasaki City | Exterior Painting | We performed exterior wall painting using nano composite!
・Aoba-ku, Yokohama City | We carried out a renovation using roof overlay and exterior wall painting!
・Takatsu-ku, Kawasaki City | Exterior Painting | We performed exterior wall painting with premium inorganic materials!
・Summary of popular colors for exterior painting! We introduce recommended color combinations!
・For those who want to try DIY exterior wall painting! Only scaffold installation! Roof and exterior wall painting DIY plan!
・Latest! Kanagawa Prefecture subsidies! We will introduce grants and reduction systems!
・Is exterior painting unnecessary? We introduce the risks of neglecting it!
・How much does exterior wall painting cost? Are there tips to reduce costs?
・When is the best time for exterior wall painting? How to determine the optimal timing!
・What are the market prices for rain gutter repair and cleaning? Tips on timing, fire insurance, and choosing contractors!!
・About joint and sealing work | We will introduce the cost range and construction methods!
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AAA is a young company with an average age in the early 20s, but our technology is second to none.
One of our greatest strengths is that we can do all of our own scaffolding, roofing, and painting work. In this industry, where work is generally divided, we are able to provide a complete set of services, which saves time and effort in management and reduces costs. Above all, if there is any trouble, we will come to you right away!
We can confidently declare this. We are the youngest and most friendly renovator in Kanagawa!
