
Hello!
We are Kakeru Koumuten Co., Ltd., a specialist in exterior renovations located in Kanagawa Prefecture!
This is a case study of an exterior renovation project in Yamato City.
This time, we carried out roof painting, exterior wall painting, and sealing work!
On this page, we will explain the actual results of the work done by Kakeru Koumuten!
Thank you very much for choosing Kakeru Koumuten!
目次
Yamato City Construction Data
| Construction Location |
| Atsugi City, Kanagawa Prefecture |
| Construction Details |
| Installation of Temporary Scaffolding Roof Painting Work Exterior Wall Painting Work Sealing Work |
| Background to the Construction |
| We received an inquiry from a customer living in Atsugi City, stating, “Since the house is older, I would like to request an inspection of the roof and exterior walls.”
This time, the customer expressed a desire to proceed with painting the roof and exterior walls, so we prepared several estimates for them. For the sealing material, they entrusted us with the high-durability sealing material, Auton Exceed! |
| Materials Used |
| 〇Roof Painting Nippon Paint / Fine Perfect Best 〇Exterior Wall Painting 〇Sealing Work |
| Price Range |
| 900,000 yen to 1,000,000 yen |
| Construction Period |
| Approximately 4 weeks |
| Completion Month |
| September 2024 |
Roof Painting Construction Procedure
1. Cleaning and Surface Preparation
2. Protection of Various Parts
This is an important task.
3. Primer Application
4. Spacer Installation
5. Intermediate Coating
The durability is said to be about 10 to 12 years. The durability may vary depending on environmental factors.
6. Top Coating

7. Completion
Please check out other painting project results from here!
Exterior Wall Painting Construction Procedure
1. High-Pressure Washing
2. Protection of Areas
3. First Coat Application
4. Second Coat Application
Royal Seraclear is a clear paint compatible with photocatalytic siding (difficult-to-attach siding).
![]()

5. Painting of Additional Parts (Rain Gutter, Eaves, Soffit, Vertical Gutter, Foundation Water Cut)
Soffit
Shutter Box
Rain Gutter
We will thoroughly paint every detail that can be painted! [/chat]
Joint Replacement Work Procedure
1. Removal of Existing Sealing Material
This is referred to as sealing, caulking, or joints. It is a critical area that can easily lead to leaks and cause cracking or lifting of the siding. Cracks and peeling are signs of deterioration!
2. Preparation (Masking Tape Application)
3. Application of Primer
4. Filling with Sealant
Auton Exceed 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 will be approximately 50,000 to 100,000 yen higher for a building with a total floor area of 30 tsubo.
5. Finishing with a Trowel

6. Removal of Masking Tape
This concludes our discussion.
Normally, we would perform the joint replacement after the exterior wall painting, but in the case of Kikusui Chemical/SP Power Fluor Clear, it is not allowed to apply it to the joints after replacement, so we replaced the joints after painting. The process varies depending on the materials used, and knowledge is required!
If the exterior wall is siding, it is common to carry out joint replacement and exterior wall painting together, so caution is necessary!
This time, we were able to finish beautifully without any issues!
Summary
Materials Used
Nippon Paint/Fine Perfect Best![]() |
|
| Expected Durability | About 10-12 years |
| Exterior Wall Paint |
Kikusui Chemical Industry/Royal Sera Clear
|
|---|---|
| Exterior Wall Color | Clear![]() |
| Accessory Paint |
|
| Accessory Color |
N90
|
| Sealing Material |
Auto Chemical / Auton Exceed Expected Lifespan 30 Years
|
|---|
Leave Your Roof and Exterior Painting in Yamato City to Kakeru Koumuten!
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exteriors, or exterior structures, please consult Kakeru Koumuten Co., Ltd.!
We carry out everything from temporary scaffolding work to roof construction and exterior painting completely in-house. We are confident that our costs, quality, and organization for exterior work are unmatched compared to other companies!
We welcome competitive estimates with confidence!
You’ll be glad you asked us! We take every request seriously to ensure you feel that way.
Our company is based in Kanagawa Prefecture, so we have extensive experience in roof and exterior painting projects in Yamato City.
Additionally, we are happy to assist with partial roof repairs, including roof overlay work, roof replacement work, and leak repairs.
“I’m worried about cracks in my carport..” “I’m concerned about the aesthetics of my roof” “I want to know about roofing materials” If you have any questions or concerns, please feel free to contact us!
Community-Focused Service
As an exterior renovation company in Kanagawa Prefecture, we have handled many roof renovations in Yamato City and deeply understand the needs of local customers.
“I want it to last long with just one renovation”
“I want to keep costs as low as possible”
“I want to improve insulation because my room is hot”
We provide optimal solutions for specific requests like these.
Being nearby, we can respond quickly to urgent roof and exterior repairs due to natural disasters like sudden leaks or strong winds in Yamato City!
List of Areas in Yamato City, Kanagawa Prefecture
Kamikusayanagi, Yamato City / Kamiwada, Yamato City / Sakuramori, Yamato City / Shibuya, Yamato City / Shimokusayanagi, Yamato City / Shimotsuruma, Yamato City / Shimowada, Yamato City / Kusayanagi, Yamato City / Daikan, Yamato City / Chuo, Yamato City / Chuo Rinkan, Yamato City / Chuo Rinkan Nishi, Yamato City / Tsukiminoko, Yamato City / Tsuruma, Yamato City / Nishitsuruma, Yamato City / Fukami, Yamato City / Fukami Dai, Yamato City / Fukami Higashi, Yamato City / Fukami Nishi, Yamato City / Fukuda, Yamato City / Minami Rinkan, Yamato City / Yanagihashi, Yamato City / Yamato Higashi, Yamato City / Yamato Minami, Yamato City / Rinkan, Yamato City
Helpful Information About Exterior Renovations Here!
・[Yamato City, Kanagawa] We performed partial rain gutter repair using Esuron/Y60!
・[Yamato City, Kanagawa] We performed a roof overlay method on the lower roof using Ridgeway!
・[Yamato City, Kanagawa] We conducted roof overlay with slate to Alma!
・[Yamato City, Kanagawa] We completed exterior painting and joint replacement work!
・About the cost of roof overlay|Kakeru Koumuten’s roofing plans!
・About the cost of exterior painting|Kakeru Koumuten’s exterior painting plans!
・About the cost of leak repairs|Kakeru Koumuten’s leak repair plans!
・About the cost of ridge cap replacement and surface plaster|Kakeru Koumuten’s construction plans!
・Latest information on subsidies and grants available for renovations!
・Exterior cleaning construction plan without scaffolding!
・Renovation store in Yokohama City, Kanagawa | What is roof overlay (roof cover 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!







