Hello!
We are Kakeru Koumuten Co., Ltd., specialists in roof repair, exterior painting, and exterior renovations located in Aoba-ku, Yokohama, Kanagawa Prefecture!
This time, we would like to introduce a case study of exterior renovations in Nishitokyo City, Tokyo. The construction method used is the roof overlay (cover method)!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Nishitokyo City, Tokyo | Construction Data
| Construction Location |
| Nishi-Tokyo City, Tokyo |
| Construction Details |
| Roof Overlay (Cover Method) Temporary Scaffolding Installation |
| Inquiry Details and Background to the Construction |
|
We received an inquiry from a resident in Nishi-Tokyo City, Tokyo, stating, “During an inspection by the house manufacturer, I was pointed out that there are numerous cracks and breaks in the roofing materials. I requested a quote for the roof overlay method, but the cost was high. I would like to request estimates from about three companies.” 〇Roof Overlay (Cover Method) We received great feedback saying, “The prices were lower than other companies, and the explanations and proposals for details like auxiliary materials were also good!” |
| Existing Base / Materials Used |
|
〇Roof Overlay (Cover Method) ・Balcony Top Coat: Kanae Chemical Industry / Kanae Water-Based FRP Top |
| Price Range |
| 1,000,000 – 2,000,000 |
| Construction Period |
| About 1 month |
| Completion Month |
| June 2024 |
Roof Overlay (Cover Method) | Construction Steps
1. Demolition of Existing Ridge and Snow Stops
Once the durability period is exceeded, corrosion and discoloration can occur, leading to the detachment and scattering of the ridge flashing.
2. Installing Roofing (Waterproof Sheet)
Tadi Self Cover is a roofing sheet specifically designed for the cover method, as the name suggests. When covering fragile slates like Resas or Colonial NEO, we recommend using the dedicated roofing Tadi Self Cover! It is said to have three times the durability compared to regular asphalt roofing, with a durability of about 30 years. It is a self-adhesive roofing with high waterproofing, providing durability close to Super Galtect, so you can feel secure!
If the roofing is solid as a primary waterproofing measure, there will be no leaks!
3. Fabricating Accessories (Kera, Karakusa, Valley)
4. Main Construction (Aiji Industry / Super Galtect)
Once the installation reaches the ridge, we will set up the necessary materials to secure the ridge board called “kanban.” The kanban we handle includes three types: cedar, resin, and galvalume steel, and this time we used galvalume steel!
Galvalume steel is expected to have three times the durability of cedar and is reassuring because it does not crack like resin or cedar! We also recommend choosing materials for the ridge base that have a durability similar to the new roofing materials, just like the roofing sheet.
5. Processing of Ridge Flashing and Sealing at Various Locations
The screws used for fixing are rust-resistant stainless steel screws with washers!
Unlike nails, screws with washers are less likely to come loose and securely fix the ridge flashing to the kanban!
Although it is not visible after construction, installing a face plate on the inside of the ridge flashing enhances waterproofing! It firmly protects the ridge, which is a critical point of the roof.
5. Cleaning
About Roofing Materials
The roofing material used is the Super Galtect from Aijii Industry. The Super Galtect comes with a 15-year paint warranty and a 25-year hole warranty, and we also provide a 10-year construction warranty!
Made from SGL steel, it is resistant to rust. The insulation material is tightly applied from edge to edge of the roofing material, creating a metal sheet that integrates both the steel plate and insulation.
When installed, insulation is applied even to the areas where the roofing materials overlap, and the surface is coated with a high heat-insulating paint, allowing for a cool summer and warm winter experience. Additionally, it has soundproofing properties, which help reduce the sound of rain.
Moreover, it is lighter compared to other roofing materials, which reduces the sway during earthquakes, making it a good earthquake-resistant option. It excels in finish, durability, insulation, soundproofing, and wind resistance, and our company has the most installations of Aijii Industry’s Super Galtect, making it highly regarded!
Colors
■Shade Black
■Shade Brown
■Shade Blue
■Shade Moss Green
■Shade Charcoal
■New Color Shade Wine Red
You can choose from the 6 colors above!
This time, we completed a roof overlay project in Shade Moss Green, and it turned out exceptionally well! The customer was very satisfied, and I was also very happy. Thank you!
Please check out other roof overlay project results from here!
| Roof Material |
|
|---|---|
| Roof Color |
Shade Moss Green
|
Balcony Top Coat | Construction Procedure
1. Cleaning, Scraping, and Roughening
2. Acetone Wiping
3. Primer Application (First Coat)
4. Top Coat Application (Two Coats)
5. Balcony Waterproofing Completion
6. Cleaning
For Roof Renovations in Nishitokyo City, Tokyo,
Trust Kakeru Koumuten!
Our company is based in Aoba-ku, Yokohama, but we also have numerous construction achievements in Nishitokyo City, Tokyo. We are happy to assist with roof overlay work, roof replacement, leak repairs, and partial roof repairs.
If you have any questions or concerns, such as “I just want to know the estimate for roof renovation” or “I want to know about roofing materials”, please feel free to contact us!
List of Areas in Nishitokyo City, Tokyo
Aoba-ku, Nishitokyo City / Kitahara-cho, Nishitokyo City / Kitamachi, Nishitokyo City / Sakae-cho, Nishitokyo City / Shibakubo-cho, Nishitokyo City / Shimohoya, Nishitokyo City / Shinmachi, Nishitokyo City / Sumiyoshi-cho, Nishitokyo City / Tanashi-cho, Nishitokyo City / Nakamachi, Nishitokyo City / Nishihara-cho, Nishitokyo City / Higashimachi, Nishitokyo City / Higashifushimi, Nishitokyo City / Hibari-ga-oka, Nishitokyo City / Hibari-ga-oka Kita, Nishitokyo City / Fujimachi, Nishitokyo City / Hoyamachi, Nishitokyo City / Midorimachi, Nishitokyo City / Minamimachi, Nishitokyo City / Mukodai-cho, Nishitokyo City / Yanagisawa, Nishitokyo City / Yato-cho, Nishitokyo City
Long-Term Reliability
All roofing materials we use are reliable products that come with long-term warranties. For example, the Super Galtect we used this time comes with a 15-year paint film warranty and a 25-year hole warranty. Additionally, we provide a 10-year construction warranty! This means you can use it with peace of mind for a long time after just one renovation.
While Super Galtect is an excellent roofing material known for its durability, we also offer roofing materials with even higher durability and better insulation properties.
Summary
Above are our achievements in exterior renovations, including the roof overlay method and balcony top coat, in Nishitokyo City, Tokyo.
The roof overlay method is currently the mainstream roofing renovation.
If you are considering the roof overlay method, be sure to check not only the roofing materials but also what auxiliary materials like roofing sheets and purlins (ridge base) are being used, and ensure that materials with low durability are not being used! Even if you use high-durability roofing materials, if the auxiliary materials are of low quality, you may incur costs for partial replacements or repairs.
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exteriors, please feel free to consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten Co., Ltd. is a renovation company strong in exterior renovations. From temporary scaffolding work to roofing and exterior wall painting, we handle everything in-house! We are confident that in terms of cost, quality, and planning efficiency, we won’t be outdone by other companies!
We are confident, so we welcome competitive estimates! Our construction warranties and aftercare services are comprehensive, and we have received positive feedback for our appropriate proposals that align with our customers’ future life plans and cost performance.
“I’m glad I asked them!” We take every request seriously to ensure you feel this way.
We look forward to your inquiries. Thank you very much.
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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!
