Construction example

Kanagawa Prefecture | Kohoku-ku, Yokohama | We have completed a roof overlay renovation using Super Galtect!

神奈川県|横浜市港北区:屋根カバー工事のリフォーム!!

BEFORE
Kanagawa Prefecture | Kohoku-ku, Yokohama: Roof overlay renovation!! Kanagawa Prefecture | Kohoku-ku, Yokohama: Roof overlay renovation!!

AFTER
Kanagawa Prefecture | Kohoku-ku, Yokohama: Roof overlay renovation!!

Kanagawa Prefecture | Kohoku-ku, Yokohama: Roof overlay renovation!!

Roof Overlay Work at Mr. O’s Residence in Kohoku-ku, Yokohama

Hello!
I am Yamanaka from 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 exterior renovations in Kohoku-ku, Yokohama.
There are several types of exterior renovations, and the work we are discussing this time is the roof overlay (Super Galtect) work!

On this page, I will explain the actual results of the work done by Kakeru Koumuten!

For Mr. O’s residence, since the underlying structure was still solid, we proceeded with the overlay work.

What is the Roof Overlay Method?

The roof overlay method involves leaving the current roof almost intact and placing a new roof on top of it, effectively covering it.
As the name suggests, it is a method of covering a roof with another roof. Therefore, the roof becomes double-layered. Since we are overlaying the roof, it is also referred to as “roof overlaying.”

Benefits of the Overlay Method

Since we are placing a “new roof” over the “existing roof,” there is almost no need for demolition work, meaning very little waste is generated.
This is the main feature and leads to various benefits.

The only parts that require demolition and waste disposal are the ridge cap, so compared to complete roof replacement, it ismore cost-effective.
In 2004, regulations regarding the concentration of asbestos in raw materials were changed (for details, please refer to the Ministry of Health, Labour and Welfare website).
Some building materials used in constructions completed before 2004 containasbestos. Asbestos-containing materials are difficult to demolish due to their high environmental impact, and the costs for demolition and waste disposal are also high. The overlay method, which generates almost no waste, is ideal for such roofs.

Some of you may be wondering, “Is it safe to live in a building that uses materials containing asbestos?” Rest assured. As long as it is not destroyed or crushed, 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, we can complete the work in a shorter time frame than painting or re-roofing. A shorter construction period means lower labor costs, which in turn makes the costs cheaper as well.
This also reduces the psychological anxiety of having to live in an unusual environment.
When scaffolding is set up, you may experience inconveniences such as difficulty entering and exiting or being unable to open windows. Being able to return to your normal life in a short period is a significant advantage.

Our company specializes in roofing work, but roof overlay (cover method) projects are the most frequently executed projects we handle. We are very grateful that we have been continuously able to carry out roof overlay (cover method) projects without interruption.

About the Roofing Materials Used

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 for perforation.
We also provide a 10-year construction warranty!

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.
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, which 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 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 and has garnered significant attention!

Color

■Shade Black
Shade Black
■Shade Brown
Shade Brown
■Shade Blue
Shade Blue
■Shade Moss Green
Shade Moss Green
■Shade Charcoal
Shade Charcoal

■Shade Wine Red

You can choose from these 6 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 achievements from here!

What is the Roof Overlay (Cover Method)?

The roof overlay method involves leaving the current roof almost as it is 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 on top of another, it is also referred to as “overlapping roofing.”

Advantages of the Overlay Method

Since we overlay “new roofs” on the “current roof,” demolition work is almost unnecessary, meaning that very little waste is generated.
This is the biggest feature and leads to various benefits.

The only part that requires demolition and waste disposal is the ridge cap, so compared to complete roof replacement, the cost is lower.
In 2004, regulations regarding the concentration of asbestos in raw materials were changed (for details, please see the Ministry of Health, Labour and Welfare website below).

Building materials used in structures constructed before 2004 may contain asbestos. Asbestos-containing materials are difficult to demolish due to their high environmental impact, and both demolition and waste disposal costs are high. The roof overlay method, which generates almost no waste, is ideal for such roofs.

Some may wonder, “Is it safe to live in a building that uses asbestos-containing materials?” but 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 consult us.

Additionally, we can complete the work in a shorter period than painting or complete roof replacement. A shorter construction period means lower labor costs, which in turn makes the cost lower.
The psychological anxiety of having to live in an unusual environment is also reduced.
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, but the roof overlay method is the most frequently performed type of work we do. We are very grateful that we are continuously able to carry out roof overlay projects without interruption.

Roof Material

AIGI Kogyo/Super Galtect

Awarded by the Minister of Education, Culture, Sports, Science and Technology and the National Invention Award for Super Galtect
Manufacturer Warranty Coating 15 years, Red rust 20 years, Puncture 25 years
Expected Durability About 40 years
Color Used This Time

Shade Black

Shade Black

Trust Kakeru Koumuten for Your Roof Renovation in Kohoku-ku, Yokohama!

Our company has extensive experience in roof renovations in Kohoku-ku.
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 a 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-ku and have a deep understanding of the needs of local customers. Whether you want to “make it last with one renovation,” “keep costs down,” or “improve insulation because the indoors are hot,” we provide optimal solutions for your specific requests.

Conclusion

Estimates and inspections are, of course, free! If you have any issues with your roof, rain gutters, exterior walls, or exterior structures, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!

Kakeru Koumuten is a renovation company strong in exterior renovations, and we perform everything from temporary scaffolding work to roof work and exterior wall painting completely in-house.
We are confident that our “cost, quality, and efficiency” in exterior renovation work are unmatched compared to other companies!

We are confident in our exterior renovations, so we welcome competitive estimates!
We offer comprehensive construction guarantees and aftercare, 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 also have information on roofing 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 remodeling can be found here!

LINE consultations are also very welcome◎

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For roofing, guttering, and exterior work and repairs in Kanagawa, contact Kakerukoumuten Co., Ltd..

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!