Hello!
This is Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior wall painting, and exterior renovations located in Aoba-ku, Yokohama, Kanagawa Prefecture!
This is a case study of an exterior renovation project in Tsurumi-ku, Yokohama.
There are several types of exterior renovations, and this project involves a roof overlay (Diplomat Star) work!
We implemented measures against leaks due to the roofing work!
On this page, we 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 Steps
1. Dismantling Existing Roof Ridge Flashing and Snow Guards
To perform the overlay method, we will dismantle unnecessary existing roofing materials (ridge flashing and snow guards)!The durability of wooden purlins is about 10 to 15 years. Exceeding the durability period can lead to corrosion and discoloration, resulting in the detachment and scattering of the ridge flashing.[/chat]
2. Laying Roofing (Waterproof Sheet)
The roofing used for
is Jouyu Pulp Industry/Sunlight G!
It is made of modified asphalt roofing material, which is said to have double the durability of regular asphalt roofing.
With a solid roofing layer serving as the first line of defense against water, there will be no leaks!
We will ensure it is securely attached to prevent it from blowing away.
3. Fabrication of Components (Karakusa, Keraba, Valley)
Before the main roofing work of
The components used will be made of galvalume steel.
4. Main Construction (Deez Roofing/Diplomat Star)
After the component fabrication of
5. Ridge Cap Fabrication and Sealing
Next, we will fabricate and install the ridge cap. We will apply sealing firmly inside the joints. For the wall edge, we will fabricate and install a component called a rain guard sheet metal.
We will use stainless steel nails and screws that are resistant to rust![/chat]
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 fragments can lead to injuries.[/chat]
About Roofing Materials
The roofing material used is Deez Roofing’s Diplomat Star.
Deez Roofing comes with a 30-year warranty on the base material.
Our company also provides a 10-year construction warranty!
It uses zinc-aluminum steel, which has the same composition as galvanized steel, known for its rust resistance.
Due to the effect of the surface stone granules, the thermal conductivity to the steel plate layer is reduced. This structure makes it harder for heat to transfer to the attic compared to other roofing materials, as it secures a sufficient air layer between the roofing material and the roof substrate.
Additionally, the unevenness of the surface stone granules diffuses raindrops, causing them to hit the surface smaller than on a normal smooth surface. As a result, the high-frequency noise caused by the micro-vibrations of the steel plate when raindrops hit, which is the source of the “noisy sound” of steel roofs, can also be suppressed by the natural stone granule layer on the surface.
By adopting the “interlocking method” that integrates the roofing materials, it not only has the performance to withstand winds of 60m/s but also excels in fire resistance and waterproofing.
Colors
■ Onyx
■ Cafe
■ Terracotta
■ Evergreen
You can choose from these 4 colors!
This time, the cover work at the café was finished very well!
The customer was extremely satisfied, and I was very happy as well!
Thank you very much!
Please take a look at 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 that very little waste is generated.
This is the biggest feature and leads to various advantages.
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 details, please refer to the Ministry of Health, Labour and Welfare website).
Building materials used in constructions completed before 2004 may 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 us.
Additionally, it can be completed in a shorter time frame compared to painting or complete 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 being unable to open windows. Being able to return to normal life in a short 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 do. We are very grateful that we are continuously able to carry out roof overlay projects without interruption.
| Roof Material |
|
|---|---|
| Manufacturer Warranty | 30-Year Warranty |
| Expected Durability | Approximately 45 Years |
| Color Used This Time |
Café
|
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exterior work, please consult Kakeru Koumuten Co., Ltd.!
We carry out everything from temporary scaffolding work to roofing and exterior painting completely in-house. We are confident that we won’t be outdone by other companies in terms of cost, quality, and efficiency in exterior work!
We welcome competitive estimates with confidence!
You’ll be glad you chose us! We take every request seriously to ensure your satisfaction.
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.
Leave Your Roof Renovation in Tsurumi-ku, Yokohama to Kakeru Koumuten!
Our company is based in Yokohama, and we have extensive experience in roof renovations in Tsurumi-ku, Yokohama.
We are happy to assist with everything from roof overlay work, roof replacement, to partial roof repairs such as leak fixes.
“I just want to know the estimate for a roof renovation” or “I want to know about roofing materials” If you have any questions or concerns, please feel free to contact us!
Community-Focused Service
As an exterior renovation company in Aoba-ku, Yokohama, we have handled many roof renovations and have a deep understanding of the needs of local customers.
“I want it to last long with one renovation”
“I want to keep costs down as much 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 the roofing materials we use are reliable products that come with long-term warranties. For example, the Diplomat Star used this time comes with a 30-year manufacturer warranty. 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.
Summary
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 is a remodeling company strong in exterior renovations, and we carry out complete in-house construction from temporary scaffolding to roofing and exterior painting.
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!
Our construction warranties and aftercare services are robust, and we have received positive feedback for our appropriate proposals that match the 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 (cover 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 renovation and leak prevention using Super Galtect!
・Tsurumi-ku, Yokohama | Residence of Mr. F | We performed roof overlay using Super Galtect!
・Tsurumi-ku, Yokohama | Roof Cover | We performed roof overlay using Super Galtect!
・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 construction 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 introduce the cost range!
・What is the cost range for rain gutter repair and cleaning? Tips on timing, fire insurance, and choosing a contractor!
・Kanagawa Prefecture, Yokohama City Renovation Store | 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!
