Hello!
We are Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior painting, and exterior renovations located in Aoba-ku, Yokohama, Kanagawa Prefecture!
This is a case study of an exterior renovation project in Musashino City, Tokyo.
For this roof renovation, we performed a roof overlay (cover method) using Super Galtect! Along with the roof overlay, we also carried out the processing of the eaves metal and the painting of the fascia!
A roof overlay (cover method) refers to the process of dismantling and removing existing roofing materials and replacing them with new roofing as a measure against leaks.
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
目次
- 1 Construction Data for T Residence, Musashino City, Tokyo
- 2 Roof Replacement Construction Procedure
- 2.1 1. Demolition of Existing Roofing Material
- 2.2 2. Installation of New Sheathing
- 2.3 3. Installing the Roofing (Waterproof Sheet)
- 2.4 4. Fabricating Accessories (Karakusa and Keraba)
- 2.5 5. Main Construction (Aiji Industrial/Super Galtect)
- 2.6 6. Processing of Ridge Cap and Sealing at Various Locations
- 2.7 7. Cleaning
- 2.8 Eaves Painting and Fascia Metal Installation
- 2.9 About Roofing Materials
- 3 Leave Your Painting Work in Tokyo to Kakeru Koumuten!
Construction Data for T Residence, Musashino City, Tokyo
| Construction Location |
| Musashino City, Tokyo |
| Construction Details |
|
Temporary scaffolding installation |
| Inquiry Details |
| I would like to replace the roof before installing solar panels. |
| Existing Substrate / Materials Used |
|
Existing roofing material: Tile Materials used for roof overlay (cover method): Super Galtect |
| Price Range |
| 1,800,000 to 1,900,000 yen |
| Construction Period |
| Approximately 3 weeks |
| Completion Month |
| December 2023 |
Roof Replacement Construction Procedure
1. Demolition of Existing Roofing Material

2. Installation of New Sheathing

3. Installing the Roofing (Waterproof Sheet)
This underlayment boasts the highest quality, unmatched in both waterproofing and durability. By sandwiching a modified asphalt layer between non-woven fabric and base paper, it fully demonstrates the inherent performance of modified asphalt.
The expected durability is about 30 years!
4. Fabricating Accessories (Karakusa and Keraba)

The materials used for the accessories are SGL steel plates.
5. Main Construction (Aiji Industrial/Super Galtect)
Once we have installed the roofing up to the ridge, we will set up the necessary materials to secure the ridge cap, known as the “kanban.” The kanban we handle comes in various types, including cedar, resin, and Galvalume steel, and this time we used the Galvalume steel version!
The Galvalume steel version is expected to have a durability of 3 times longer than the cedar version! Unlike cedar and resin, it does not crack, providing high wind resistance!
6. Processing of Ridge Cap and Sealing at Various Locations

For the wall edges, we will process and install a component called the rain guard metal.
The nails and screws used for fixing are made of stainless steel, which is resistant to rust!
7. Cleaning


Eaves Painting and Fascia Metal Installation

About Roofing Materials
The roofing material used is the Super Galtect from Aijii Industrial.
The Super Galtect comes with a manufacturer warranty of 15 years for the coating and 25 years against perforation.
We also provide a 10-year construction warranty!
Made of SGL steel plate, it is resistant to rust.
Insulation material is thoroughly applied from edge to edge of the roofing material, creating a metal plate that integrates steel and insulation.
During installation, insulation is applied even to the parts where the roofing materials overlap, and the surface is coated with a high heat-reflective paint, allowing for a cool summer and a warm winter.
Additionally, it has soundproofing properties, reducing the sound of rain.
Moreover, it is lighter compared to other roofing materials, which reduces the sway during earthquakes, making it a good earthquake countermeasure.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and the Super Galtect from Aijii Industrial is the most frequently used in our construction achievements, gaining significant attention!
Color
■Shade Black

■Shade Brown

■Shade Blue

■Shade Moss Green

■Shade Charcoal

■New Color Shade Wine Red

You can choose from these 6 colors!
This time, the cover work was completed very well in Shade Brown!
The customer was extremely satisfied, and I was very happy as well!
Thank you very much!
Please check out other roofing work achievements from here!
| Roof Material |
|
|---|---|
| Manufacturer Warranty | Coating 15 years, Red rust 20 years, Puncture 25 years |
| Expected Durability | About 40 years |
| Color Used This Time |
Shade Brown
|
Leave Your Painting Work in Tokyo to Kakeru Koumuten!
Our company has extensive experience in painting renovations in Tokyo.
We are happy to assist with partial painting, including exterior wall painting, waterproofing work, and other painting projects.
“I just want to know the estimate for exterior wall painting” or “I want to know about the paint suitable for my home” If you have any questions or concerns, please feel free to contact us!
We also have pricing plans for painting work available, so please take a look if you’re interested!
・Exterior Painting and Sealing Work Price List
・DIY Painting Plan | For those who want to try painting the roof and exterior walls themselves! We will only set up the scaffolding!
・Latest! Subsidies and Grants in Yokohama, Kanagawa Prefecture | About the Reduction System
Summary
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. in Aoba-ku, Yokohama!
Kakeru Koumuten is a remodeling company strong in exterior renovations, and we carry out complete in-house construction from temporary scaffolding to roof work and exterior painting.
We are confident that our “cost, quality, and efficiency” are unmatched compared to other companies in exterior renovation work!
We are confident in our exterior renovations, so we welcome competitive estimates!
We offer comprehensive construction guarantees and aftercare maintenance, and we have received positive feedback for our appropriate proposals that align with cost performance and our customers’ future life plans!
“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.
Helpful information about exterior renovations can be found here!
・Ota Ward, Tokyo | Exterior Painting | Eaves Exchange | We completed exterior renovation!
・Ota Ward, Tokyo | Roof Repair | We performed a roof overlay using Ridgeway!
・Itabashi Ward, Tokyo | Exterior Painting | We performed exterior renovation with Premium Silicon!
・Popular Colors for Exterior Painting! We introduce recommended color combinations!
・For those who want to try DIY exterior wall and roof painting! Scaffolding only! DIY plan for roof and wall painting!
・Latest! Subsidies in Kanagawa Prefecture! We will introduce subsidy and reduction systems!
・Is exterior painting unnecessary? We will introduce the risks of neglecting it!
・How much does exterior painting cost? Are there tips to reduce costs?
・When is the best time for exterior wall painting? How to determine the best timing!
LINE consultations are also very welcome◎
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!



