
Hello!
I am Yamanaka from Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior wall painting, and exterior renovations!
Here, I would like to introduce our achievements in ‘Exterior Wall Painting and Joint Sealing Work’ carried out in Machida City, Tokyo. In this article, you can find details and processes of the exterior renovations provided by Kakeru Koumuten.
For this project, we used Daiya Super Ceranflex paint along with SR Seal H100, enhancing both aesthetics and durability. We also provide detailed explanations of the price range and construction period. Please use this as reference information for your home’s exterior renovation.
Thank you very much for choosing Kakeru Koumuten!
Construction Data
| Construction Location |
| Machida City, Tokyo |
| Construction Details |
| Temporary Scaffolding Installation Exterior Wall Painting Work Joint Sealing Work Balcony Top Coat |
| Background to the Construction |
|
・Inquiry Details ・Proposal Details |
| Paints and Sealing Materials Used |
| 〇Exterior Wall Existing substrate: Fiber cement siding Primer: Daiya Wide Sealer Intermediate and top coat: Daiya Super Selan Flex 〇Accessory Paints |
| Price Range |
| 1,200,000 to 1,300,000 yen |
| Construction Period |
| Approximately 3 weeks |
| Completion Month |
| December 2024 |
Joint Replacement Construction Procedure
First, we will replace the joint sealing!
Depending on the paint, the work process may vary.
The sealing material used this time is Sunrise Co., Ltd./SR Seal H100.
Its features include ultra-high durability, ultra-low pollution, flexibility, and resistance to dirt.
1. Removal of Existing Sealing Material

It is referred to as sealing, caulking, or joints. It is an important area that can easily cause leaks and lead to cracks or lifting in the siding (exterior wall). Symptoms such as cracks or peeling are signs of deterioration!
2. Applying Masking Tape
This is also an important task to ensure a clean finish.
3. Applying Primer
4. Filling with Sealing Material
Apply the caulking gun nozzle to the joint base and fill it adequately. The caulking material used in this construction is Sunrise Co., Ltd./SR Seal H100.
SR Seal H100 has a durability of about 3 times that of regular caulking materials (urethane, modified silicone, etc.). The expected durability is about 30 years.
The cost is approximately 50,000 to 100,000 yen higher compared to regular modified silicone for a building with a total floor area of 30 tsubo.[/chat]
5. Finishing with a spatula
6. Removal of masking tape
Exterior Wall Painting Construction Procedure
1. High-pressure washing
2. Protection of various areas
3. Primer Coat

4. Middle Coat

5. Top Coat

The paint used this time is Seika Japan Co., Ltd. / Dia Super Ceranflex!
Dia Super Ceranflex is an ultra-durable inorganic paint that offers excellent cost performance in relation to its durability and benefits.
6. Accessory Painting
The auxiliary parts refer to areas other than the exterior walls and roof!
The painting methods and materials used vary by location, so caution is necessary!
For more details, please see here!
Rain Gutter
Fascia and Soffit Metal
Soffit

Ventilation Opening
Drip Edge

Shutter Box

Please check out other painting work achievements here!
Balcony Top Coat Construction Procedure
1. High Pressure Washing
2. Scraping and Surface Roughening
By doing this, we increase the area where the paint adheres, improving its adhesion.
We will move or elevate any obstacles that may hinder waterproofing work for outdoor units.
3. Top Coat Application (Two Coats)
After finishing the application, we will check for any missed spots.
This time, we introduced the highly popular Daiya Super Selanflex from our company!
The process for balcony top coats varies depending on the materials used, so knowledge is essential!
Benefits of Simultaneously Performing Exterior Painting and Sealing
As in this case, there are several benefits to performing exterior painting and sealing at the same time.
It is important for the protection and maintenance of your home, as well as cost performance, so please keep this in mind!
Improved Waterproofing
Sealing prevents water intrusion by sealing gaps and cracks in the exterior walls. By performing sealing simultaneously with painting, we enhance the waterproofing of the entire painted surface, preventing damage from rainwater and other sources.
Long-term Durability
The new layer of paint and sealing increases the weather resistance of the exterior walls, protecting them from UV rays and climate changes. This helps delay paint peeling, fading, and the deterioration of the sealing.
Maintenance of Aesthetics
Sealing fills small cracks and holes in the exterior walls, smoothing the surface before painting and providing a beautiful finish. By performing painting and sealing simultaneously, we achieve a consistent appearance and texture.
Improved Cost Efficiency
By performing exterior painting and sealing at the same time, you can save on labor and time, as well as costs for setting up scaffolding, compared to doing them separately.
This leads to a reduction in the overall cost of the project.
Structural Protection
Sealing also plays an important role in protecting the structural parts of the building. By thoroughly filling gaps in the exterior walls, it prevents moisture and pest intrusion, extending the lifespan of the building.
Improved Energy Efficiency
By sealing gaps, air leakage during heating and cooling is reduced, improving energy efficiency.
This also leads to savings on heating and cooling costs, making it an environmentally friendly choice.
Simultaneously performing exterior painting and sealing offers many functional benefits as well as aesthetic ones, making it one of the best methods for protecting and maintaining your building.
The Necessity of Exterior Painting and Maintenance Schedule
The Necessity and Purpose of Exterior Painting
The role of exterior painting is primarily to protect the exterior walls. Like the roof, the exterior walls are directly affected by rain, wind, and UV rays. Regular exterior painting helps prevent these damages and plays a role in extending the lifespan of the house.
Additionally, making the house look beautiful is also a role of exterior painting. The exterior walls determine the first impression of the house, so maintaining their beauty enhances the comfort of the residents and the evaluation from the surroundings.
If you want to extend the lifespan of your house and maintain its aesthetics, we recommend performing exterior painting!
Maintenance Schedule for Exterior Painting
Generally, the lifespan of exterior wall painting is said to be about 7 to 10 years. However, like roofs, this can vary depending on the type of paint used, the painting method, and climate conditions. Inspections are necessary to check for signs of deterioration such as fading, peeling, and cracking about 3 to 5 years after the initial painting.
By regularly checking the condition of the exterior walls and performing maintenance as needed, you can maintain the aesthetic appeal while protecting your valuable home.
Description of the Paint Used【Sika Japan Co., Ltd./Super Ceranflex】
Super Weather Resistance
Super Ceranflex has weather resistance that surpasses fluororesin paints. This allows for the long-term maintenance and protection of the building’s aesthetic appeal.
Ultra Low Pollution
This paint has ultra low pollution properties, making it difficult for contaminants to adhere, and dirt can be easily washed away with rainwater. This helps to maintain the beauty of the painted surface for a longer time.
Flexibility
Due to the high flexibility of the paint film, the risk of cracking is significantly reduced even when applied over sealing. This is because it easily follows the movement of the substrate.
Moisture Permeability
Moisture permeability refers to the property of allowing moisture in vapor form to escape before it condenses into droplets.
Super Ceranflex has high moisture permeability, allowing water vapor to pass through while preventing water droplets from doing so. This efficiently releases moisture from within the walls, preventing issues such as thermal swelling.
Environmental Consideration
By combining inorganic paint with organic components, it achieves both environmental consideration and high performance. In particular, water-based and low-solvent types are offered as environmentally friendly options.
Improved Workability
To accommodate various substrates, it is possible to add new functions through combinations with adjusting materials. This expands the flexibility and applicability of the construction.
These features make Super Ceranflex highly suitable for exterior wall painting, enabling long-term protection and maintenance of aesthetic appeal.
| Exterior Wall Paint | ![]() |
|---|---|
| Exterior Color | No.28【White】 |
Learn more about Dia Super Ceranflex here!!
| Sealing Material |
SR Seal H100 Expected Lifespan: 30 years |
|---|
Click here for more about sealing!
Leave your exterior wall painting in Machida, Tokyo to Kakeru Koumuten!
Our company specializes in exterior wall painting and roof renovation work primarily in Kanagawa Prefecture and Tokyo.
We are happy to assist with exterior wall painting, waterproofing work, or even partial painting.
If you have any questions or concerns, such as “I just want to know the estimate for exterior wall painting” or “I want to know about the paint suitable for my home”, please feel free to contact us!
We also have pricing plans for exterior wall painting and other services, so please take a look if you are interested!
・Exterior Wall Painting and Sealing Work Price List
・For those who want to try DIY roof and exterior wall painting! Scaffolding setup is also possible!
・Latest! Subsidies and Grants in Yokohama, Kanagawa Prefecture | Reduction System
Conclusion
We offer free estimates and inspections!
If you have any issues with your roof, rain gutters, exterior walls, or exterior structures, please consult with us!
Kakeru Koumuten Co., Ltd. is a remodeling company strong in exterior renovations, and we carry out everything from temporary scaffolding work to roof work and exterior painting work completely in-house.
When it comes to exterior renovation work, we are confident that we do not fall short compared to other companies in terms of “cost, quality, and smooth processes”!
We are confident in our exterior renovations, so we welcome competitive estimates!
We also offer robust construction guarantees and aftercare maintenance, and we have received positive feedback for our appropriate proposals that match our customers’ future life plans and cost performance!
We want you to think, “I’m glad I asked them!” Therefore, we take every request seriously and work diligently on it.
We look forward to your inquiries!
Helpful information about exterior renovations can be found here!
・Fujisawa City, Kanagawa Prefecture | I’s Residence | We performed a roof overlay using Ridgeway!
・Zushi City, Kanagawa Prefecture | We carried out a roof painting renovation with Fine Perfect Best!
・Konan-ku, Yokohama City | We performed a roof overlay and rain gutter replacement using Ridgeway!
・Painting DIY Plan! A must-see for those who want to try DIY roof and exterior wall painting! We will only set up the scaffolding!
・What is the market price for roof renovations? Detailed explanations on types of construction and how to choose contractors!
・Latest | Grants and subsidies available for renovations, and reduction systems!
・How much does it cost for roof work? We will introduce the cost range!
・Exterior wall cleaning construction plan without scaffolding installation!
・Renovation store in Yokohama City, Kanagawa Prefecture | What is roof layering (roof overlay method)?
We welcome consultations via LINE as well◎
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!





