Roof overlay (cover method) construction achievements
Hello!
This is 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 renovation in Kawasaki City, Kawasaki Ward, Kanagawa Prefecture.
There are several types of exterior renovations, and this time, the work involved is roof overlay construction (Ridgeway)!
We implemented leak prevention measures through roofing work!
On this page, I will explain the actual achievements carried out by Kakeru Koumuten!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Roof overlay construction procedure
1. Removal of existing ridge cap and snow guards

When performing
2. Roofing installation (waterproof sheet)

The roofing used is Tajima Roofing/Tadis Self!
It is a delayed adhesive modified asphalt roofing material, said to have double the durability of regular asphalt roofing.
As a primary waterproofing measure, if the roofing is solid, there will be no leaks!
We will securely adhere it to prevent it from blowing away. [/chat]
3. Custom fabrication (decorative elements and eaves)

Before the main roof construction, we will fabricate and install decorative elements such as eaves and decorative scrolls!
The materials used for the decorative elements are galvalume steel sheets.
4. Main construction (Asahi Fiberglass/Ridgeway)


After processing the
Once we have installed it up to the ridge, we will set up the necessary materials to secure the ridge cap, called a kanban. There are types of kanban made from cedar and resin, and this time we used a resin type!
The resin type is expected to have three times the durability compared to the cedar type!
5. Processing of Ridge Cap and Sealing at Various Locations


We will process and install the
The nails and screws used for fixing are made of stainless steel, which is resistant to rust!
6. Cleaning

We will clean up the debris that has fallen onto the balcony and rain gutters. We will thoroughly remove items like nails and metal scraps that could lead to injuries. [/chat]
The roofing material used is Ridgeway from Asahi Fiberglass.
Ridgeway comes with a 10-year manufacturer warranty.
Since it uses natural stone with baked-on paint on the surface, it is a roofing material that does not require painting, which helps reduce maintenance costs!
Additionally, because it uses fine natural stones on the surface, you won’t be troubled by rain noise.
Moreover, it is a lightweight roofing material, making it strong against earthquakes and providing seismic resistance.
Colors
■ Dual Black

■ Harvard Slate

■ Vintage Green

■ Dual Brown

This time, the roofing work with Dual Brown 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 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, it is also referred to as “overlapping roofing.”
Advantages of the Overlay Method
Since a “new roof” is placed over the “current roof,” demolition work is almost unnecessary, meaning that very little waste is generated.
This is the main feature and leads to various advantages.
The only part that requires dismantling and waste disposal is the ridge cap, so compared to a full 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 constructed before 2004 contain asbestos. Asbestos-containing materials are difficult to dismantle due to their high environmental impact, resulting in 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 asbestos-containing materials?” 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 with us.
Additionally, the construction can be completed in a shorter period compared to painting or full roof replacement. A shorter construction period means lower labor costs, which in turn makes the overall cost lower.
This also reduces the psychological anxiety of having to live in an unusual environment.
If 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 time is certainly a significant advantage.
Our company specializes in roofing work, and the roof overlay method is the most frequently performed service we offer. We are very grateful that we have been continuously carrying out roof overlay projects without interruption.
| Roof Material | Asahi Fiberglass/Ridgeway |
|---|---|
| Manufacturer Warranty | 10 years |
| Expected Durability | 25 to 30 years |
| Color Used This Time |
Dual Brown
|
For roof renovations in Kawasaki-ku, Kawasaki, trust Kakeru Koumuten Co., Ltd.!
Our company has extensive experience in roof renovations in Kawasaki City, Kawasaki Ward.
We are happy to assist with everything from roof overlay work, roof replacement, to partial roof repairs such as 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!
List of Areas in Kawasaki City, Kawasaki Ward
Ashida 1-4 Chome, Kawasaki Ward / Asanocho, Kawasaki Ward / Asahi 1-2 Chome, Kawasaki Ward / Ikegami Shinmachi 1-3 Chome, Kawasaki Ward / Ikegamicho, Kawasaki Ward / Ikeda 1-2 Chome, Kawasaki Ward / Sunako 1-2 Chome, Kawasaki Ward / Isecho, Kawasaki Ward / Ukishimacho, Kawasaki Ward / Egawa 1-2 Chome, Kawasaki Ward / Ekimae Honcho, Kawasaki Ward / Enokicho, Kawasaki Ward / Oiwakecho, Kawasaki Ward / Ougimachi, Kawasaki Ward / Okawacho, Kawasaki Ward / Ougishima, Kawasaki Ward / Oshima 1-5 Chome, Kawasaki Ward / Oshima Kamimachi, Kawasaki Ward / Ogawacho, Kawasaki Ward / Oda 1-7 Chome, Kawasaki Ward / Oda Sakae 1-2 Chome, Kawasaki Ward / Kaizuka 1-2 Chome, Kawasaki Ward / Kawanakajima 1-2 Chome, Kawasaki Ward / Kannon 1-2 Chome, Kawasaki Ward / Kyomachi 1-3 Chome, Kawasaki Ward / Kokan Dori 1-5 Chome, Kawasaki Ward / Kojimacho, Kawasaki Ward / Sakaimachi, Kawasaki Ward / Sakuramoto 1-2 Chome, Kawasaki Ward / Shiohama 1-4 Chome, Kawasaki Ward / Shimonamiki, Kawasaki Ward / Showa 1-2 Chome, Kawasaki Ward / Shiraishicho, Kawasaki Ward / Shinkawa Dori, Kawasaki Ward / Suzuki Cho, Kawasaki Ward / Daishi Ekimae 1-2 Chome, Kawasaki Ward / Daishi Kawahara, Kawasaki Ward / Daishi Kawahara 1-2 Chome, Kawasaki Ward / Daishi Koen, Kawasaki Ward / Daishi Honcho, Kawasaki Ward / Daishi Cho, Kawasaki Ward / Daimachi, Kawasaki Ward / Tajima Cho, Kawasaki Ward / Tanabe Shinden, Kawasaki Ward / Tamachi 1-3 Chome, Kawasaki Ward / Chidoricho, Kawasaki Ward / Tsutsumine, Kawasaki Ward / Dekino, Kawasaki Ward / Tonomachi 1-3 Chome, Kawasaki Ward / Nakajima 1-3 Chome, Kawasaki Ward / Nakase 1-3 Chome, Kawasaki Ward / Nisshincho, Kawasaki Ward / Hamacho 1-4 Chome, Kawasaki Ward / Higashi Ougishima, Kawasaki Ward / Higashida Cho, Kawasaki Ward / Higashi Monzen 1-3 Chome, Kawasaki Ward / Hinode 1-2 Chome, Kawasaki Ward / Fujisaki 1-4 Chome, Kawasaki Ward / Fujimi 1-2 Chome, Kawasaki Ward / Horinouchi Cho, Kawasaki Ward / Honmachi 1-2 Chome, Kawasaki Ward / Mizuemachi, Kawasaki Ward / Minatocho, Kawasaki Ward / Minamimachi, Kawasaki Ward / Minami Watarida Cho, Kawasaki Ward / Miyamae Cho, Kawasaki Ward / Miyamoto Cho, Kawasaki Ward / Motoki 1-2 Chome, Kawasaki Ward / Yakou 1-3 Chome, Kawasaki Ward / Yotsuya Kamimachi, Kawasaki Ward / Yotsuya Shimomachi, Kawasaki Ward / Watarida 1-4 Chome, Kawasaki Ward / Watarida Sannocho, Kawasaki Ward / Watarida Shinmachi 1-3 Chome, Kawasaki Ward / Watarida Higashimachi, Kawasaki Ward / Watarida Mukaimachi
Community-Focused Services
As an exterior renovation company based in Aoba-ku, Yokohama, we have undertaken many roof renovations in neighboring Kawasaki City, Kawasaki 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 as much as possible,” or “increase insulation performance because the indoors are hot,” we provide optimal solutions for your specific requests.
Long-Term Reliability
All roofing materials we use come from reliable products that offer long-term warranties. For example, the material we used this time, Ridgeway, comes with a 10-year manufacturer warranty, allowing you to use it with peace of mind for a long time after one renovation.
Ridgeway is a lightweight roofing material with excellent seismic resistance, but we also handle roofing materials with even higher durability and better insulation properties.
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 Co., Ltd. is a remodeling company strong in exterior renovations, and we carry out everything from temporary scaffolding work to roof work and exterior painting completely in-house.
We are confident that in terms of “cost, quality, and organization”, we do not fall behind 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 cost performance and appropriate proposals that align with our customers’ future life plans!
We want you to feel, “I’m glad I asked them!” Therefore, we take every request we receive seriously.
We also have information on roof construction costs and pricing plans for the roof overlay (cover method), so please take a look if you are interested!
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・Kawasaki City, Kawasaki Ward | We performed a roof overlay (cover method) using Yokodana Roof from existing colonial roofing materials!
・Kawasaki City, Kawasaki Ward | K’s residence: We carried out roof remodeling and leak prevention measures!
・Kawasaki City, Miyamae Ward | We performed a roof overlay (cover method) using Hiranbee 220!
・DIY Painting Plan! A must-see for those who want to paint their roof and exterior walls themselves! We only provide scaffolding!
・What is the cost range for roof remodeling? Types of work and how to choose a contractor.
・Latest information on subsidies, grants, and reduction systems available for remodeling!
・How much does it cost for roof work? We introduce the cost range!
・Remodeling store in Yokohama, Kanagawa Prefecture | What is roof overlay (roof cover method)?
・About the cost of roof covering | Kakeru Koumuten’s roof work plan!
・About the cost of exterior painting | Kakeru Koumuten’s exterior painting plan!
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!




