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 project requested by Company S in Tsurumi-ku, Yokohama.
There are several types of exterior renovations, and this project involves the roof overlay (cover method) work!
We implemented leak prevention measures through the roofing 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.
目次
Roof Overlay (Cover Method) Construction Procedure
1. Dismantling of Existing Roof Ridge Flashing
We will dismantle the existing roofing materials (ridge metal, snow guards) that are unnecessary for the
2. Roofing Installation (Waterproof Sheet)
The roofing used is
It is made of modified asphalt roofing, which is said to have double the lifespan of regular asphalt roofing.
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. Main Body Construction (Aijii Kogyo/Super Galtect)
We will install the Galtect main body up to the ridge! We will apply single cement at the overlapping areas during the construction.[/chat]
4. Ridge Metal Processing & Sealing at Various Locations
5. Cleaning
The roofing material used is the Super Galtect from Aijii Industrial.
The Super Galtect comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation.
We also provide a 10-year construction warranty!
Made of SGL steel plate, it is resistant to rust.
Insulation material is tightly applied from edge to edge of the roofing material, creating a metal plate that integrates the steel plate and insulation.
When installed, insulation is applied even to the parts where the roofing materials overlap, and the surface is coated with a highly heat-reflective paint, allowing for a cool summer and a warm winter.
Additionally, it has soundproofing properties, reducing the sound of rain.
Moreover, it is lightweight compared to other roofing materials, which reduces the sway during earthquakes, making it a good earthquake countermeasure.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and our construction records show that the Super Galtect from Aijii Industrial is the most popular and highly regarded!
Color
Color
■Shade Black
■Shade Brown
■Shade Blue
■Shade Moss Green
■Shade Charcoal
You can choose from these 5 colors!
This time, we completed the cover work with Shade Blue, and it 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, 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 very little waste is generated.
This is the biggest feature and leads to various advantages.
The only part that requires dismantling and waste disposal is the ridge cap, so compared to a complete roof replacement, the cost is lower.
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 website).
Some building materials used in structures built before 2004 contain asbestos. Because materials containing asbestos have a high environmental impact, dismantling them is also difficult, resulting in high costs for both demolition and waste disposal. The roof 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 materials containing asbestos?” 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 period than painting or 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.
When scaffolding is set up, you may experience 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 have been continuously engaged in roof overlay projects without interruption.
| Roof Material |
|
|---|---|
| Manufacturer Warranty | Coating 15 years, Red rust 20 years, Puncture 25 years |
| Expected Durability | About 40 years |
| Color Used This Time |
Shade Blue
|
Trust Kakeru Koumuten for Roof Renovations in Tsurumi-ku, Yokohama!
Our company is based in Yokohama, and we have extensive experience in roof renovations in Tsurumi-ku, Yokohama.
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 a 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 and deeply understand the needs of local customers.
“I want it to last a long time with just one renovation”
“I want to keep costs as low as possible”
“I want to improve insulation because the indoors are hot”
We provide optimal solutions for specific requests like these.
Long-Term Reliability
All roofing materials we use come with long-term warranties and are highly reliable products. For example, the Super Galtect we used this time comes with a 15-year coating warranty and a 25-year hole warranty from the manufacturer. We also provide a 10-year construction warranty, so you can use it with peace of mind for a long time after just one renovation.
Galtect 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 concerns regarding 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 roofing and exterior painting completely in-house.
We are confident that our “cost, quality, and efficiency” in exterior renovation work surpasses that of other companies!
We are confident in our exterior renovations, so we welcome competitive estimates!
We also offer comprehensive construction warranties and aftercare services, receiving high praise for our 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 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!
・Tsurumi-ku, Yokohama | We performed roof renovations and leak prevention using Super Galtect!
・Tsurumi-ku, Yokohama | Roof Cover | We performed roof overlay (cover method) using Super Galtect!
・Tsurumi-ku, Yokohama | Roof Cover | We performed roof overlay (cover method) with Diplomat Star!
・DIY Painting 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 renovations? Types of construction and how to choose a contractor, etc.
・Latest! Grants and subsidies available for renovations, and reduction systems!
・How much does it cost for roof work? We will introduce the cost range!
・What is the cost range for rain gutter repairs and cleaning? Tips on timing, fire insurance, and choosing a contractor!
・Renovation Shop in Yokohama, Kanagawa Prefecture | What is Roof Overlay (Roof Cover 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!
