Kohoku-ku, I’s Residence – Roof Overlay Work (Super Galtect)
Thank you very much for choosing Kakeru Koumuten Co., Ltd. for your project.
This is a roof overlay project utilizing fire insurance in Kohoku-ku, Yokohama.
Thanks to the fire insurance, we were able to significantly reduce the customer’s burden.
Kakeru Koumuten has extensive knowledge and experience necessary for fire insurance applications.
Please feel free to reach out with any questions, as we provide comprehensive support!
We have received great feedback from apartment owners as well.
Don’t hesitate to consult us!
目次
Kohoku-ku, I’s Residence – Overlay Work Construction Photos
1. Demolition of existing roof ridge
2. Installation of roofing (waterproof sheet)
3. Fabrication of accessories (decorative elements, eaves, valleys)
4. Fabrication of skylight metalwork
5. Main construction

6. Ridge Cap and Wall Rain Stop Processing

About the Roofing Material Used
The roofing material used is the Super Galtect from Aijii Industrial.
The Super Galtect comes with a 15-year coating warranty and a 25-year hole warranty from the manufacturer.
We also provide a 10-year construction warranty!
Additionally, it is made of SGL steel plate, which is resistant to rust.
Insulation material is tightly applied from edge to edge of the roofing material, creating a metal plate that integrates the steel plate and insulation.
When installed, insulation is applied even to the parts where the roofing materials interlock, and the surface is coated with a highly heat-reflective paint, allowing for a cool summer and warm winter experience.
Moreover, it has soundproofing properties, reducing the sound of rain.
Being lighter than other roofing materials, it also reduces the sway during earthquakes, contributing to earthquake resistance.
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 and is gaining significant attention!
Color
■Shade Black

■Shade Brown

■Shade Blue

■Shade Moss Green

■Shade Charcoal

You can choose from these 5 colors!
This time, the cover work with Shade Black turned out exceptionally well!
The customer was very satisfied, and I was also very happy!
Thank you very much!
Please check out other roofing work examples from here!
What is the Roof Overlay (Cover Method)?
The roof overlay method involves leaving the current roof almost intact and placing a new roof on top of it, effectively covering it.
Literally, it is a method of covering a roof with another roof. Therefore, the roof becomes double-layered. Since the roof is laid over the existing one, it is also referred to as “overlapping roofing.”
Advantages of the Overlay Method
Since you are placing a “new roof” over the “current roof,” demolition work is almost unnecessary, meaning very little waste is generated.
This is the biggest feature and leads to various advantages.
The only part that requires dismantling and waste disposal is the ridge cap, making it more affordable compared to a complete roof replacement.
In 2004, regulations regarding the concentration of asbestos in raw materials were changed (for more details, please see the Ministry of Health, Labour and Welfare website linked below).
Some building materials used in constructions completed before 2004 contain asbestos. Because materials containing asbestos have a high environmental impact, dismantling them is also difficult, leading to high costs for both dismantling and waste disposal. The roof overlay method, which generates almost no waste, is ideal for such roofs.
You may be wondering, “Is it safe to live in a building that uses materials containing asbestos?” Rest assured, as long as there is no destruction or crushing, it will not disperse into the air.
If you are unsure about the type of roof on your home, please feel free to consult us.
Additionally, the construction can be completed in a shorter time frame compared to painting or a full roof replacement. A shorter construction period means lower labor costs, which in turn makes the overall cost more affordable.
This also reduces the psychological anxiety of having to live in an unusual environment.
When scaffolding is set up, there may be inconveniences such as difficulty entering and exiting or opening windows. Being able to return to normal life in a short period is a significant advantage.
Our company specializes in roofing work, and the roof overlay method is the most frequently performed type of work we undertake. We are very grateful that we have been continuously engaged in roof overlay projects without interruption.
| Roof Material |
|
|---|---|
| Manufacturer Warranty | Coating 15 years, Red rust 20 years, Holes 25 years |
| Expected Durability | About 40 years |
| Color Used This Time |
Shade Black
|
Leave Your Roof Renovation in Kohoku Ward, Yokohama to Kakeru Koumuten!
Our company has extensive experience in roof renovations in Kohoku Ward.
We are happy to assist with partial roof repairs, including roof overlay work, roof replacement, and leak repairs.
If you have any questions or concerns, such as “I just want to know the estimate for the roof renovation” or “I want to know about roofing materials,” please feel free to contact us!
Community-Focused Service
As an exterior renovation company based in Aoba-ku, Yokohama, we have handled many roof renovations in nearby Kohoku Ward and have a deep understanding of the needs of local customers. Whether you want to “make it last long with one renovation,” “keep costs down,” or “improve insulation because the indoors are hot,” we provide optimal solutions to specific requests.
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 roof work and exterior wall painting.
We are confident that in terms of “cost, quality, and good planning,” we do not fall behind compared to other companies!
We are confident in our exterior renovations, so we welcome competitive estimates!
We also offer comprehensive construction guarantees and aftercare, and we have received positive feedback for our appropriate proposals that match 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 also have information on roof construction costs and pricing plans for the roof overlay 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!
・Kohoku-ku, Yokohama | Roofing | We performed roof replacement and cap metal replacement work!
・Aoba-ku, Yokohama | Roofing | We conducted a roof replacement using Super Galtect!
・Kohoku-ku, Yokohama | Roof Overlay Method | We performed a roof overlay using Super Galtect!
・Painting DIY Plan! A must-see for those who want to try DIY roof and exterior wall painting! We will only set up scaffolding!
・What is the cost range for roof remodeling? Types of work and how to choose a contractor!
・Latest | Grants and subsidies available for remodeling, as well as reduction systems!
・How much does roofing work cost? We will introduce the cost range!
・What is the cost range for rain gutter repair and cleaning? Tips on timing, fire insurance, and choosing a contractor!
・Renovation Store in Kanagawa Prefecture, Yokohama | What is Roof Overlay (Roof Cover Method)?
LINEConsultations via LINE 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!


