Kanagawa Prefecture | Aoba-ku, Yokohama | U’s Residence: We performed a roof renovation and leak prevention using Nichiha Yokodori Roof!

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 roof renovation work in Tsuzuki-ku, Yokohama.
There are several types of roof renovation work, and this time, the work involves the roof overlay (cover method) (Yokodana Roof)!
We implemented measures against leaks through the roof work!

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

Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.

1. Removal of Existing Ridge Flashing and Snow Guards

We will dismantle only the ridge flashing and snow guards that obstruct the overlay work! The wood battens were partially rotted!

2. Laying of Roofing (Waterproof Sheet)

The roofing used is Nisshin Kogyo/Kappa 23!
It is made of modified asphalt roofing material, which is said to have double the durability of regular asphalt roofing.
As a primary waterproofing measure, if the roofing is properly installed, there will be no leaks!
We will securely attach it to prevent it from blowing away. [/chat]

3. Component Processing (Curly Patterns, Eaves, Valleys)

Before the main roofing installation, we will process components such as eaves, curly patterns, and valley metal!
The components used will be the same SGL steel plate as the horizontal panel roofing. [/chat]

4. Main Construction (Nichiha/Horizontal Panel Roof S)

After processing the components, we will install the horizontal panel roofing up to the ridge!
Once the roofing is completed up to the ridge, we will install a necessary material called a “nail board” to secure the ridge cap. There are types of nail boards made of cedar and resin, and this time we used a resin type!
The resin type is expected to have three times the durability of the cedar type! [/chat]

5. Ridge Cap Processing and Sealing at Various Locations

6. Cleaning

We will clean up any debris that has fallen onto the balcony and rain gutters. We will thoroughly remove items like nails and metal scraps that could cause injuries. [/chat]

The roofing material used this time is Nichiha Corporation’s Yokodan Roof S.
The Yokodan Roof S comes with a 15-year paint film warranty, 20-year rust warranty, and 25-year hole warranty.
It is a high-performance insulated metal roof made from a combination of metal steel plates (high-durability painted Galvalume steel) and insulation materials (rigid polyurethane foam), along with aluminum laminated backing.
It is lightweight, earthquake-resistant, and provides excellent insulation performance throughout the year, achieving long maintenance due to its high durability.

Color

This time, the cover work was done in Black S, and it turned out very well!
The customer was very satisfied, and I was also very happy!
Thank you very much!

Please check out other roofing work results 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.
Literally, it is a method of covering a roof with another roof. Therefore, the roof becomes double-layered. It is also referred to as “overlapping roofing” since the roof is laid over another.

Advantages of the overlay method

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

The only parts that require demolition and waste disposal are 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 more details, please visit the Ministry of Health, Labour and Welfare’s website).
Some building materials used in structures built before 2004 contain asbestos. Because materials containing asbestos have a high environmental impact, demolition is also difficult, and the costs for both demolition and waste disposal are high. The roof overlay method, which generates almost no waste, is ideal for such roofs.

Some of you 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 time frame compared to painting or complete roof replacement. A shorter construction period means lower labor costs, which in turn makes the overall 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 undertake. We are very grateful that we are continuously able to carry out roof overlay projects without interruption.

Roof Material	Nichiha/Yokodana Roof αs
Manufacturer Warranty	Coating 15 years, Rust 20 years, Puncture 25 years
Color Used This Time	Black S

Trust Kakeru Koumuten Co., Ltd. for Roof Renovations in Tsuzuki-ku, Yokohama!

Our company has extensive experience in roof renovations in Tsuzuki-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 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 Tsuzuki-ku 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 for your specific requests.

Conclusion

Estimates and inspections are, of course, free! If you have any issues with roofs, 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 maintenance, 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.

Here for helpful information about exterior renovations!

LINE consultations are also very welcome◎

 

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!