Construction example

Kohoku-ku, Yokohama | Roof Repair | Performed Exterior Renovation with Roof Overlay (Hiranbi)!

神奈川県|横浜市港北区:屋根カバー(ヒランビー)のリフォームを行いました!

BEFORE

Kanagawa Prefecture | Kohoku Ward, Yokohama: We performed a roof overlay (Hiranbi) renovation!

AFTER

Kanagawa Prefecture | Kohoku Ward, Yokohama: We performed a roof overlay (Hiranbi) renovation!

O-san’s residence in Kohoku Ward, Yokohama: Roof overlay work (cover method) with Hiranbi 220, before and after.
Thank you very much for choosing Kakeru Koumuten Co., Ltd. for this project.
This roof overlay work in Kohoku Ward, Yokohama, utilized fire insurance.
Thanks to the fire insurance, we were able to significantly reduce the customer’s burden.

O-san’s residence in Kohoku Ward, Yokohama: Cover work construction photos

1. Demolition of existing roof ridge
1. Demolition of existing roof ridge

2. Installation of roofing (waterproof sheet)

3. Fabrication of accessories (decorative patterns, eaves, valleys)

4. Main construction

5. Fabrication of ridge cap
5. Fabrication of ridge cap

About the roofing material

The roofing material used is Hiranbi 220 from Inagaki Shouji.
Hiranbi 220 comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation.
For re-roofing and overlay work, we also provide a 10-year construction warranty!
If there are any leaks within 10 years, we will make repairs free of charge.
Made of Galvalume steel, it is resistant to rust.
The formed panels feature decorative folds and wave patterns to prevent distortion and enhance strength, as well as improve water drainage and aesthetic effects.

Additionally, it excels in finish, durability, sound insulation, and wind resistance, and is lightweight compared to other roofing materials, which reduces the sway during earthquakes, making it a good choice for earthquake resistance.
In this overlay (cover) work, the roof becomes double-layered, which increases the weight, but Hiranbi is a lightweight roofing material, making it suitable for overlay (cover) work.

Color

Extreme – MAX Type
■ Gray Silver
Gray Silver
■ Silver Black
Silver Black
■ Sepia
Sepia
■ Moss Green
Moss Green
■ Bamboo Green
Bamboo Green
■ Midnight Blue
Midnight Blue
■ Jet Black
Jet Black
■ Dark Brown
Dark Brown
■ Bright Red
Bright Red
Standard Type
■ Steel Black
Steel Black
■Marron Brown
Marron Brown
■J Silver
J Silver
You can choose from these options!

This time, the roof overlay work was completed very well in Moss Green!
Thank you for your request!!

Please check out our other roofing work achievements here!

What is the Roof Overlay Method?

The roof overlay method involves leaving the current roof almost as it is and placing a new roof on top of 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 a “new roof” is placed over the “existing roof,” there is almost no need for demolition work, meaning very little waste is generated.
This is the biggest feature and leads to various advantages.

The only parts that require demolition and waste disposal are the ridge cap, making it more cost-effective compared to complete roof replacement.
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’s website).
Some building materials used in structures built before 2004 contain asbestos. 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 may wonder if it is safe to live in buildings that use 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, the construction can be completed in a shorter time frame compared to painting or complete replacement. A shorter construction period means lower labor costs, which in turn makes the overall cost more affordable.
The psychological anxiety of having to live in an unusual environment is also reduced.
When scaffolding is set up, you may experience inconveniences such as difficulty entering and exiting or not being able 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, and the roof overlay method is the most frequently performed type of work we undertake. We are very grateful that we continuously receive requests for roof overlay work without interruption.

Roof Material

Inagaki Shoji / Hiranbi 220

Inagaki Shoji / Hiranbi 220

Manufacturer Warranty Coating 15 years; Puncture 25 years
Expected Durability About 35 years
Color Used This Time

Moss Green

Moss Green

   

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 a renovation that lasts a long time with a single project, want to keep costs down, or want to improve insulation because your indoor space is hot, we provide optimal solutions for your specific requests.

Conclusion

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 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 in terms of “cost, quality, and efficiency”, we do not fall behind other companies!

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 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 roof construction 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!

 

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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!