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 an exterior renovation in Aoba-ku, Yokohama.
There are several types of exterior renovations, and the work we did this time is the roof overlay (cover method) (Ridgeway)!
We implemented measures against leaks through the roofing work!
On this page, I will explain the actual results of the work done by Kakeru Koumuten!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Roof Overlay Construction Procedure
1. Dismantling Existing Ridge Metal and Snow Guards
2. Roofing Installation (Waterproof Sheet)
It is made of a material called modified asphalt with adhesive properties, which is said to have twice the durability of regular asphalt roofing. Because it adheres to the existing roofing materials, it has high waterproofing properties!
As a primary waterproofing measure, if the roofing is solid, there will be no leaks!
We will ensure it is firmly adhered to prevent it from blowing away.
3. Component Processing (Curlicue, Eaves, Valley, Waste Board)
The components used are made of galvalume steel.
4. Main Body Construction (Asahi Fiberglass/Ridgeway)
Once we have finished installing up to the ridge, we will set up the necessary materials to secure the ridge board called “kanban.” There are types of kanban made of cedar and resin, and this time we used a resin type! (Toughmock, Eco Lumber, etc.) We used Toughmock this time!
The resin type is expected to have 3 times the durability of cedar!
We also have an article that explains roofing in an easy-to-understand manner! Please take a look if you’re interested!
5. Processing of Ridge Metal and Sealing at Various Locations
At the wall edge, we will process and install a component called rain stop metal.
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 on the balcony and rain gutters. We will thoroughly carry out this task as nails and metal scraps can lead to injuries.[/chat]
About Roofing Material (Ridgeway)
The roofing material used this time is Ridgeway from Asahi Fiberglass.
Ridgeway comes with a 10-year manufacturer warranty.
Since it uses natural stone that is baked on 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 the sound of rain.
Additionally, it is a lightweight roofing material, making it strong against earthquakes and providing seismic resistance.
Colors
■Dual Black
■Harvard Slate
■Vintage Green
This time, the cover work with Harvard Slate 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 examples 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 over another, it is also referred to as “overlapping roofing.”
Benefits of the Overlay Method
Since we overlay a “new roof” on the “existing roof,” almost no demolition work is required, meaning that very little waste is generated.
This is the biggest feature, leading 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 more details, please visit the Ministry of Health, Labour and Welfare 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 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 feel free to 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 overall cost lower.
This also reduces the psychological anxiety of having to live in an unusual environment.
If 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 the roof overlay method is the most frequently performed service we offer. We are very grateful that we have been continuously engaged in roof overlay projects without interruption.
| Roof Material |
Asahi Fiberglass/Ridgeway 
|
|---|---|
| Manufacturer Warranty | 10 years |
| Expected Durability | 25 to 30 years |
| Color Used This Time |
Harvard Slate
|
Leave Your Roof Renovation in Aoba-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
Our company has extensive experience in roof renovations in Aoba-ku.
We are happy to assist with everything from roof overlay work, roof replacement, to partial roof repairs such as leak fixes.
If you have any questions or concerns like “I just want to know the estimate for the roof renovation” or “I want to know more about roofing materials,” please feel free to contact us!
Community-Focused Service
As a home renovation company in Aoba-ku, Yokohama, we handle many roof renovations and have a deep understanding of the needs of local customers. Whether you want “to make it last long with one renovation,” “to keep costs down,” or “to improve insulation 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 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 earthquake resistance, 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 is a renovation company strong in exterior renovations, and we conduct everything from temporary scaffolding to roofing and exterior painting completely in-house.
We are confident that in terms of “cost, quality, and efficiency,” we do not fall behind compared to other companies!
We are confident in our exterior renovations, so we welcome competitive estimates!
We also provide robust construction warranties and aftercare maintenance, receiving high praise for our cost performance and appropriate proposals that align with 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 renovations can be found here!
・Miyamae-ku, Kawasaki City | Roof Overlay (Cover Method) | We performed the cover method with Super Galtect!
・Miyamae-ku, Kawasaki City | We performed a roof replacement using tiles to Super Galtect!
・Miyamae-ku, Kawasaki City | We performed a roof cover method using Hilanbee 220!
・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 market price for roof remodeling? Types of construction and how to choose a contractor, etc.
・Latest | About subsidies and grants available for remodeling, and reduction systems!
・How much does it cost for roof work? We will introduce the cost market!
・What is the market price for rain gutter repair and cleaning? Tips on timing, fire insurance, and choosing a contractor!
・Remodeling 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!
