Hello!
We are 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 an exterior renovation project in Yokosuka City, Kanagawa Prefecture.
The work this time includes the roof overlay (cover method) by Ridgeway and solar panel removal and reinstallation!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
目次
- 1 Yokosuka City, Mr. S’s Residence – Construction Data
- 2 Roof Overlay Construction Procedure
- 2.1 1. Temporary Removal of Solar Panels
- 2.2 2. Installing Roofing (Waterproof Sheet)
- 2.3 3. Fabrication of Accessories (Kera and Karakusa)
- 2.4 4. Main Construction (Asahi Fiberglass/Ridgeway)
- 2.5 5. Ridge Flashing and Sealing at Various Locations
- 2.6 6. Installation of Reused Solar Panel Brackets
- 2.7 7. Installation of Solar Panels
- 2.8 8. Cleaning
- 2.9 About the Roofing Material (Ridgeway)
- 2.10 Colors
- 3 What is the Roof Overlay (Cover Method)?
- 4 Leave Your Roof Renovation in Yokosuka City to Kakeru Koumuten Co., Ltd.!
Yokosuka City, Mr. S’s Residence – Construction Data
Roof Overlay Construction Procedure
1. Temporary Removal of Solar Panels
We will seal the holes left by the mounting brackets!
2. Installing Roofing (Waterproof Sheet)
This material is modified asphalt roofing, which is said to have double the durability compared to regular asphalt roofing.
As a primary waterproofing measure, if the roofing is properly installed, there will be no leaks! We will ensure it is securely applied to prevent it from blowing away.
3. Fabrication of Accessories (Kera and Karakusa)
The materials used for the accessories will be galvalume steel sheets.
4. Main Construction (Asahi Fiberglass/Ridgeway)
5. Ridge Flashing and Sealing at Various Locations
The resin type is expected to have twice the durability compared to the cedar type!
After installing the kanbari, we will process and attach the ridge flashing. We will firmly apply sealing on the inside of the joints.
The nails and screws used for fixing will be made of stainless steel, which is resistant to rust!
6. Installation of Reused Solar Panel Brackets
7. Installation of Solar Panels
8. Cleaning
About the Roofing Material (Ridgeway)
The roofing material used is Ridgeway from Asahi Fiberglass.
Ridgeway comes with a 10-year manufacturer warranty.
Since it uses natural stone that is baked onto the surface, it is a roofing material that does not require painting, thus reducing maintenance costs!
The use of fine natural stones on the surface means you won’t be troubled by rain noise.
Additionally, it is a lightweight roofing material, making it strong against earthquakes and providing seismic resistance.
*After installation, the surface decorative stones may fall off for about a week, but there is no issue with quality.
Colors
■Dual Black
■Harvard Slate
■Vintage Green
■Dual Brown
■Earthtone Cedar
This time, we completed a roofing project using Harvard Slate, and it turned out exceptionally well!
Our customer was very satisfied, and I was also very happy!
Thank you very much!
Please take a look at our other roofing project achievements 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 installed in layers, it is also referred to as “layered 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 its most significant feature, leading to various advantages.
The only parts that require demolition and waste disposal are the ridge caps, making it more cost-effective compared to complete roof replacement.
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 constructions completed 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, “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 feel free to consult with us.
Additionally, the construction can be completed 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 more affordable.
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 shorter 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 are continuously able to carry out roof overlay projects without interruption.
| Roof Material |
|
|---|---|
| Manufacturer Warranty | 10 years |
| Expected Durability | 25 to 30 years |
| Color Used This Time |
Harvard Slate
|
Leave Your Roof Renovation in Yokosuka City to Kakeru Koumuten Co., Ltd.!
Our company is based in Aoba-ku, Yokohama, but we also have extensive experience in roof renovations in Yokosuka City.
We are happy to assist with roof overlay work, roof replacement, and even partial roof repairs such as leak fixes.
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!
Long-Term Reliability
All roofing materials we use are highly reliable products that offer long-term warranties. For example, the Ridgeway from Asahi Fiberglass, which we used this time, comes with a 10-year manufacturer warranty, allowing you to use it with peace of mind for a long time after just one renovation.
Ridgeway is a lightweight roofing material that excels in durability and cost performance, but we also offer roofing materials with even higher durability and better insulation properties.
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 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.
When it comes to exterior renovation work, we are confident that we do not fall short compared to other companies in terms of “cost, quality, and efficiency”!
We are confident in our exterior renovations, so we welcome competitive estimates!
We also 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 think, “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 feel free to take a look!
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・Yokosuka City, Kanagawa Prefecture | We performed solar panel removal, roof renovation, and rain leakage countermeasures!
・Zushi City, Kanagawa Prefecture | We carried out exterior wall painting (clear coating) and joint sealing work!
・Yokosuka City, Kanagawa Prefecture | We performed roof overlay (cover method) using Super Galtect and Kiriyoke metal work!
・Painting DIY Plan! A must-see for those who want to try DIY roof and exterior wall painting! We will only set up the scaffolding!
・What is the cost range for roof renovation? Types of work and how to choose a contractor.
・Latest | Grants and subsidies available for renovations, and reduction systems!
・How much does it cost for roof work? We will introduce the cost range!
・Renovation store in Yokohama City, Kanagawa Prefecture | What is roof layering (roof overlay method)?
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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!
