Hello! We are Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior wall painting, and exterior renovations located in Aoba-ku, Yokohama, Kanagawa Prefecture!
This time, we will introduce the house manufacturer Sekisui House, detailing its features and renovation methods.
Of course, we can also handle exterior renovations for homes built by house manufacturers, so if you have any concerns regarding your home, whether it’s repairs or renovations, please feel free to contact us!
目次
- 1 What is Sekisui House?
- 2 Main Features of Sekisui House Exteriors
- 3 Points to Consider When Painting the Exterior of Sekisui House
- 3.1 Check if the Paint is Suitable for Sekisui House’s Exterior
- 3.2 Check if the Contractor has Experience with Sekisui House Exterior Painting
- 3.3 Don’t decide with just one company; always obtain estimates from at least three companies
- 3.4 Check if there is a solid warranty and aftercare support after construction
- 4 For renovations of Sekisui House, choose Kakeru Koumuten Co., Ltd.!
- 5 Service Areas
What is Sekisui House?
Sekisui House Co., Ltd. is one of the largest detached house manufacturers in Japan, primarily focusing on custom-built steel and wooden houses, as well as rental housing, condominiums, urban development, and renovations.
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Established: 1960
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Headquarters: Osaka Prefecture
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Total number of houses built: Over 2.5 million (top class in Japan)
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Brand series: Izu Series (steel), Sherwood (wood)
They are a top-class house manufacturer in the industry in terms of “structural framework,” “earthquake resistance and insulation performance,” “design,” and “high durability of exterior materials.”
Main Features of Sekisui House Exteriors
The main feature of buildings constructed by Sekisui House is the adoption of exterior wall materials that balance durability and design as standard specifications.
Due to their excellent durability, caution is necessary when repainting, so we recommend entrusting the work to contractors experienced with Sekisui House!
Main Exterior Wall Materials of Sekisui House
We will introduce the main exterior wall materials used by Sekisui House.
[Wooden Exterior Wall] Bellburn
The exterior wall material “Bellburn” is an inorganic exterior panel baked at high temperatures, providing exceptional weather resistance and durability. Unlike typical exterior materials, it is fundamentally not intended for painting.
This exterior material has a special coating treatment, making it difficult for paint to adhere. Therefore, when painting, it is necessary to use a specialized primer with excellent adhesion.
[Lightweight Steel Frame Exterior] Dain Concrete
The exterior wall material “Dain Concrete” for lightweight steel frame houses combines beautiful texture with the robustness of a shelter. The secret to its strength lies in the “autoclave curing” process, which is conducted under high temperature and pressure. It is a highly durable and strong exterior wall material that features a warm appearance and intricate texture, excelling in design.
In the first place, Dain Concrete is designed to maintain its aesthetics and performance for a long period without maintenance. The surface of Dain Concrete is hard, making it difficult for regular paint to adhere, so it is necessary to use an appropriate primer. We recommend choosing a contractor with experience in working with Dain Concrete for installation.
Since it is a highly durable exterior wall material, if you are concerned about dirt, maintenance involving only cleaning the exterior wall without painting is also recommended!
[Heavyweight Steel Frame Exterior] Sheltech Concrete
The exterior wall material “Sheltech Concrete” for heavyweight steel frame houses is a strong exterior wall material that achieves approximately twice the strength of regular concrete while being lightweight.
However, in many cases, painting work is often carried out between 15 to 20 years.
As with other exterior wall materials, there is a possibility of poor adhesion between the paint film and the existing exterior wall, so a specialized primer for adhesion is required.
Roof and Rooftop of Sekisui House
Here, we will introduce the main roofing materials used in Sekisui House.
Slate Roof
The slate roof is a roofing material that is widely used in Sekisui House.
The characteristics of slate roofs include being lightweight, easy to install, and excellent in cost performance. Compared to other roofing materials, it can be installed relatively cheaply, making it a popular choice. However, it has a shorter lifespan and lower waterproofing compared to other roofing materials, so regular maintenance is necessary.
Tiled Roof
The tiled roof is a roofing material used in the design houses of Sekisui House.
It features a heavy and luxurious finish, with high durability, waterproofing, and heat insulation properties. However, compared to other roofing materials, it is heavier and has challenges in seismic resistance.
Additionally, there are tiles that integrate solar panels.
Flat Roof (Rooftop Structure)
Most flat roofs of Sekisui House use sheet waterproofing with PVC sheets.
Balcony of Sekisui House
Most balcony waterproofing in buildings constructed by Sekisui House employs PVC Sheet Waterproofing with Mechanical Fixing Method.
The PVC sheet waterproofing mechanical fixing method involves mechanically fixing PVC waterproof sheets to the substrate using anchors, forming the waterproof layer.
The main renovation methods for PVC sheet waterproofing are “replacing the PVC sheet waterproofing,” “applying a top coat to the PVC sheet waterproofing,” and “removing the PVC sheet waterproofing and switching to another waterproofing method.” The construction method will vary depending on the degree of deterioration and the points of emphasis, so be sure to check with your contractor.
Joint (Sealing) of Sekisui House
The joint refers to the gap (joint part) between building materials.
Water and moisture can infiltrate through the joints more than through the exterior walls, which can negatively impact the entire home.
At Sekisui House, it is common to use a special joint material called gasket joint (dry joint).
A gasket is a molded rubber component that is pre-inserted into the joints between exterior walls to ensure waterproofing and airtightness.
While gasket joints typically have a durability of nearly 30 years, there is a possibility of lifting or peeling occurring in areas exposed to direct sunlight before the 30 years are up!
If lifting or peeling is observed, maintenance will be necessary!
When performing exterior wall painting on buildings with gasket joints, it is essential to use a dedicated primer (such as bleed-off primer) for the gasket joints!
If you paint without using the dedicated primer, it can lead to issues such as paint film peeling, so it is recommended to hire a contractor who has experience working on buildings constructed by Sekisui House.
Points to Consider When Painting the Exterior of Sekisui House
When painting the exterior of a Sekisui House building, there are four main points to consider.
1. Confirm that the paint used is suitable for Sekisui House’s exterior walls.
2. Check if the contractor has experience with Sekisui House exterior painting.
3. Obtain estimates from at least three companies instead of relying on just one.
4. Ensure that there is a solid warranty and aftercare following the construction.
Let’s explain each point in detail!
Check if the Paint is Suitable for Sekisui House’s Exterior
When considering exterior painting for Sekisui House, the most important thing is to confirm whether the paint used is suitable for the exterior materials. Sekisui House homes use different exterior materials such as Belburn (ceramic exterior), Dain Concrete, and ceramic siding, depending on the series.Each exterior material has its own characteristics, and some may not be suitable for painting or may require a dedicated primer.
First, you need to check what type of exterior material your home has.
In some cases, Sekisui House may have special processing applied to the exterior walls. Materials that are less prone to dirt due to such special processing are called difficult-to-attach siding. Since the suitable paint can vary depending on the substrate, it is essential to understand what type of existing exterior wall you have.
Check if the Contractor has Experience with Sekisui House Exterior Painting
Confirm whether the contractor has experience with Sekisui House exterior painting.
This is similar for other house manufacturers, but since Sekisui House uses unique exterior materials and sealing materials, it is necessary to know what they are using.
Therefore, it is important to verify whether they have actually worked on Sekisui House buildings.
Don’t decide with just one company; always obtain estimates from at least three companies
When renovating the exterior of a Sekisui House building, don’t settle for just one company; obtain estimates from several companies and compare them!
When getting estimates, it’s important to not only consider the lowest price but also to carefully check the details of the estimate process and materials used. Make sure to confirm, “Is this renovation method suitable for the building? Are appropriate materials being used?”
Check if there is a solid warranty and aftercare support after construction
For painting houses built by house manufacturers, how they respond to troubles or defects after construction is also crucial. What is the warranty period? Will they handle repairs if issues arise? These need to be confirmed in advance.
Additionally, check whether a warranty certificate is issued and if regular inspections are available.
For renovations of Sekisui House, choose Kakeru Koumuten Co., Ltd.!
When you want to renovate a house built by Sekisui House, many people might think that only that house manufacturer can perform the work.
In reality, this is not the case, and there are many experienced contractors available.
However, because Sekisui House buildings often use special exterior materials due to their high durability and quality, caution is necessary during renovations!
Kakeru Koumuten Co., Ltd. has extensive experience in exterior renovations of various house manufacturers’ buildings.
From temporary scaffolding work to roof work and exterior painting, we carry out all work with complete in-house construction, and we are confident that our “cost, quality, and efficiency” are unmatched by others!
We are confident, so we welcome estimates, and of course, they are free!
We also offer comprehensive construction warranties and aftercare maintenance, so you can feel secure in your request.
“I’m glad I asked them!” is what we strive for, and we take every request seriously. Whether it’s a small concern about your roof, rain gutters, exterior walls, or landscaping, or if you’re facing an urgent problem, please feel free to consult with us!
We look forward to your inquiries.
Service Areas
Kakeru Koumuten Co., Ltd. is based in Aoba-ku, Yokohama, and can serve not only within Yokohama and Kawasaki but also almost all of Kanagawa Prefecture and Tokyo. If you have concerns in Saitama, Chiba, or Yamanashi, please contact us!
Tokyo
Akishima City / Akiruno City / Adachi Ward / Arakawa Ward / Itabashi Ward / Inagi City / Edogawa Ward / Ome City / Edogawa Ward / Ome City / Ota Ward / Katsushika Ward / Kita Ward / Kiyose City / Kunitachi City / Koto Ward / Koganei City / Kokubunji City / Kodaira City / Komae City / Shinagawa Ward / Shibuya Ward / Shinjuku Ward / Suginami Ward / Sumida Ward / Setagaya Ward / Taito Ward / Tachikawa City / Tama City / Chuo Ward / Chofu City / Chiyoda Ward / Toshima Ward / Nakano Ward / Okutama / Nishi-Tokyo City / Nerima Ward / Hachioji City / Hamura City / Higashi-Kurume City / Higashimurayama City / Higashiyamato City / Hino City / Fuchu City / Fussa City / Bunkyo Ward / Machida City / Mitaka City / Minato Ward / Musashimurayama City / Musashino City / Meguro Ward
Kanagawa Prefecture
Aikou-gun Aikawa Town / Ashigarakami-gun Oi Town / Ashigarakami-gun Kaisei Town / Ashigarakami-gun Nakai Town / Ashigarakami-gun Matsuda Town / Ashigarakami-gun Yamakita Town / Ashigarakamigun Hakone Town / Ashigarakanagun Manazuru Town / Ashigarakamigun Yugawara Town / Isehara City / Odawara City / Kamakura City / Kawasaki City / Asao Ward / Sai Ward / Takatsu Ward / Tama Ward / Nakahara Ward / Miyamae Ward / Kozu-gun Samukawa Town / Zushi City / Chigasaki City / Nakagun Oiso Town / Nakagun Ninomiya Town / Hadano City / Hiratsuka City / Fujisawa City / Miura-gun Hayama Town / Miura City / Minamiashigara City / Yokosuka City / Yokohama City / Aoba Ward / Asahi Ward / Izumi Ward / Isogo Ward / Kanagawa Ward / Kanagawa Ward / Kanazawa Ward / Konan Ward / Kohoku Ward / Sakae Ward / Seya Ward / Tsuzuki Ward / Tsurumi Ward / Totsuka Ward / Naka Ward / Nishi Ward / Hodogaya Ward / Yokohama City Midori Ward / Yokohama City Minami Ward / Sagamihara City / Sagamihara City Midori Ward / Sagamihara City Minami Ward / Sagamihara City Chuo Ward / Ebina City / Atsugi City
・Saitama Prefecture, Chiba Prefecture, and parts of Yamanashi Prefecture (please consult us)
・【Tachikawa City, Tokyo】｜Roof Renovation｜We performed a roof replacement from tile to Super Galtect!
・【Yokosuka City】｜Roof Work｜We conducted a cover method using highly wind-resistant roofing materials recommended in Yokosuka City!
・【Minami Ward, Yokohama】｜Rain Gutter Repair｜We repaired only the eaves gutter (horizontal gutter) that was damaged by wind disaster!
・【Higashiyamato City, Tokyo】｜Exterior Wall Painting｜We performed exterior wall painting and joint replacement work using Escape Premium Silicon!
・【Asahi Ward, Yokohama】｜Exterior Renovation｜We conducted roof painting, wood deck painting, and wave board replacement!!
・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!
・About the cost of exterior wall painting｜Kakeru Koumuten’s exterior wall painting plan!
・What is the necessity and timing of exterior wall painting…? Kakeru Koumuten Co., Ltd. will explain!
・【Yokohama】｜Exterior Wall Painting｜We will explain the importance of comparative estimates and points to compare!
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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!
