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 Tsurumi-ku, Yokohama.
There are several types of exterior renovations, and this time we performed a roof overlay (cover method) using Super Galtect!
We implemented measures against leaks through the roofing work!
This time, we carried out the overlay work from “Urbanie” to “Super Galtect”!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
目次
- 1 Construction Data for Tsurumi-ku, Yokohama
- 2 Roof Overlay Construction Procedure
- 2.1 1. Dismantling Existing Roof Ridge Flashing and Snow Stops
- 2.2 2. Installing Roofing (Waterproof Sheet)
- 2.3 3.Accessory Processing (Karakusa & Keraba)
- 2.4 4. Main Construction (Aiji Industry/Super Galtect)
- 2.5 5. Ridge Cap Processing & Sealing at Various Locations
- 2.6 6. Cleaning
- 2.7 About Roofing Materials
- 3 Leave your roof renovation in Tsurumi-ku, Yokohama to Kakeru Koumuten!
- 4 Summary
Construction Data for Tsurumi-ku, Yokohama
| Construction Location |
| Tsurumi-ku, Yokohama |
| Construction Details |
|
Temporary scaffolding |
| Existing Base / Materials Used |
| Existing Roofing Material: Urbanie Materials Used for Roof Overlay: Super Galtect |
| Construction Period |
| Approximately 1 week |
| Completion Month |
| February 2023 |
Roof Overlay Construction Procedure
1. Dismantling Existing Roof Ridge Flashing and Snow Stops
2. Installing Roofing (Waterproof Sheet)
It is made of modified asphalt roofing, which is said to have double the durability of regular asphalt roofing.
With a solid roofing acting as the primary waterproofing, there will be no leaks!
We will ensure it is securely attached so it won’t blow away.
3.Accessory Processing (Karakusa & Keraba)

The accessories used are genuine Galtect accessories made of SGL copper plate!
4. Main Construction (Aiji Industry/Super Galtect)

Once laid up to the ridge, we will install necessary materials called “kanban” to secure the ridge cap. There are two types of kanban: cedar and resin, and this time we used resin!
Resin is expected to have twice the durability compared to cedar!
5. Ridge Cap Processing & Sealing at Various Locations

We use stainless steel nails and screws that are resistant to rust!
6. Cleaning

About Roofing Materials
The roofing material used is Aijii Industrial’s Super Galtect.
Super Galtect comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation.
Our company also provides a 10-year construction warranty!
Made of SGL steel plate, it is resistant to rust.
Insulation material is tightly applied from edge to edge of the roofing material, creating a metal plate that integrates steel and insulation.
When installed, insulation is applied even to the parts where the roofing materials overlap, and the surface is coated with a highly heat-reflective paint, allowing for a cool summer and a warm winter.
It also has soundproofing properties, reducing the sound of rain.
Moreover, it is lighter compared to other roofing materials, which reduces the sway during earthquakes, providing earthquake resistance.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and Super Galtect from Aijii Industrial is the most frequently used material in our construction achievements and is receiving 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 Black!
The customer was very satisfied, and I was also very happy!
Thank you very much!
Please check out other roofing work examples 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 Black
|
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd.!
We carry out everything from temporary scaffolding work to roof construction and exterior painting entirely in-house. We are confident that we won’t be outdone by other companies in terms of cost, quality, or efficiency in exterior work!
We welcome competitive estimates with confidence!
You will be glad you chose us! We take every request seriously to ensure you feel that way.
We also have information on roof construction costs and pricing plans for roof overlay methods, so please take a look if you’re interested!
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
Leave your roof renovation in Tsurumi-ku, Yokohama to Kakeru Koumuten!
Our company is based in Yokohama, so we have extensive experience in roof renovations in Tsurumi-ku, Yokohama.
We are happy to assist with roof overlay work, roof replacement, and partial roof repairs such as leak repairs.
If you want to know just the estimate for roof renovations or have questions about roofing materials, please feel free to contact us!
Community-Focused Service
We are an exterior renovation company located in Aoba-ku, Yokohama, and we have handled many roof renovations in Yokohama, deeply understanding the needs of our local customers.
“I want it to last a long time with just one renovation”
“I want to keep costs as low as possible”
“I want to improve insulation because the indoors are hot”
We provide optimal solutions to specific requests like these.
Long-term Reliability
All the roofing materials we use are highly reliable products that come with long-term warranties. For example, the Super Galtect we used this time comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation. We also provide a 10-year construction warranty, so you can use it with peace of mind for a long time after just one renovation.
Galtect is a lightweight roofing material that excels in durability and cost performance, but we also offer roofing materials with even higher durability and better insulation properties.
Summary
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten is a renovation company strong in exterior renovations, and we carry out complete in-house construction from temporary scaffolding to roofing and exterior wall painting.
We are confident that in terms of “cost, quality, and efficiency”, we do not fall behind compared to other companies!
We are confident in our exterior renovations, so we welcome competitive estimates!
We also have robust construction warranties and aftercare maintenance, and we have received positive feedback for our appropriate proposals that match 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 also have information on roofing costs and pricing plans for the roof overlay (cover method), so please take a look if you’re interested!
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・Tsurumi-ku, Yokohama | We performed roof renovation and leak prevention using Super Galtect!
・Tsurumi-ku, Yokohama | Roof Cover | We performed roof overlay (cover method) using Super Galtect!
・Tsurumi-ku, Yokohama | Roof Cover | We performed roof overlay (cover method) with Diplomat Star!
・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 are the cost averages for roof renovations? Types of construction and how to choose a contractor.
・Latest! Grants and subsidies available for renovations, and reduction systems!
・How much does it cost for roof work? We will introduce the cost averages!
・Exterior wall cleaning construction plan that does not require temporary scaffolding!
・Renovation Store in Kanagawa Prefecture, Yokohama | What is Roof Overlay (Roof Cover Method)?
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!



