Hello!
I am Yamanaka from Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior painting, and exterior renovation located in Aoba-ku, Yokohama, Kanagawa Prefecture!
This is a case study of exterior renovation in Midori-ku, Yokohama City, Kanagawa Prefecture.
There are several types of exterior renovations, and the work we performed this time is a roof overlay (cover method) construction (Ridgeway)!
We implemented measures against leaks due to the roofing work!
On this page, I will explain the actual achievements we have accomplished at Kakeru Koumuten!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
目次
Roof Overlay Construction Procedure
1. Dismantling Existing Roof Ridge Flashing
We will dismantle the existing roofing materials (ridge flashing, snow guards) that are unnecessary for the
2. Installing Roofing (Waterproof Sheet)
The roofing used is Nisshin Kogyo / Kappa 23!
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 properly installed, there will be no leaks!
We will ensure it is firmly adhered to prevent it from blowing away.[/chat]
3. Fabrication of Accessories (Karakusa, Keraba, Valley)
Before the main roofing work, we will fabricate and install accessories such as keraba and karakusa flashing!
The materials used for the accessories are galvalume steel. [/chat]
4. Main Construction (Asahi Fiberglass / Ridgeway)
After processing the
Once we have installed up to the ridge, we will set up the necessary materials to fix the ridge board 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 Metal and Sealing at Various Locations
We will process and install the ridge metal
For the wall edge, we will process and install a component called a rain guard metal.
We will use stainless steel nails and screws that are resistant to rust!
6. Cleaning
We will clean up the debris that has fallen onto the balcony and rain gutters. We will thoroughly carry this out as nails and metal fragments can 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 that is baked 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 the sound of rain.
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
■Auston Cedar
This time, the roof construction with Dual Black turned out exceptionally well!
The customer was very satisfied, and I was also very happy!
Thank you very much!
Please check out other roofing construction achievements 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 its most significant feature, leading to various advantages.
The only parts that require demolition and waste disposal are the ridge cap, making it more cost-effective compared to complete roof replacement.
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 structures constructed before 2004 may contain asbestos. Asbestos-containing materials are challenging to dismantle 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 if it is safe to live in buildings that use 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 time frame compared to painting or re-roofing. A shorter construction period means lower labor costs, which in turn makes the expenses more affordable.
The psychological anxiety of having to live in an unusual environment is also reduced.
When 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 certainly a significant advantage.
Our company specializes in roofing work, and the roof overlay (cover method) is the most frequently performed service we provide. We are very grateful that we have been able to continuously carry out roof overlay (cover method) projects without interruption.
| Roof Material |
|
|---|---|
| Manufacturer Warranty | 10 years |
| Expected Durability | 25 to 30 years |
| Color Used This Time |
Dual Black
|
For Roof Renovations in Midori-ku, Yokohama, Trust Kakeru Koumuten!
Our company has extensive experience in roof renovations in Midori-ku.
We are happy to assist with roof overlay work, roof re-roofing, and partial roof repairs such as 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 a home exterior renovation company in Aoba-ku, Yokohama, we have handled many roof renovations in nearby Midori-ku and have a deep understanding of 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 performance because the indoors are hot”
We provide optimal solutions for 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 many years after a single renovation.
Ridgeway is a lightweight roofing material with excellent seismic resistance, but we also offer roofing materials with even higher durability and better insulation properties.
Summary
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 remodeling company strong in exterior renovations, and we perform all work from temporary scaffolding to roofing and exterior painting completely in-house.
We are confident that our “cost, quality, and efficiency” in exterior renovation work are unmatched 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 appropriate proposals that align with cost performance and our customers’ future life plans!
We want you to think, “I’m glad I chose you!” Therefore, we take every request seriously.
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!
・Midori-ku, Yokohama | Roof Replacement | We performed roofing work/roof renovation with Hiranbi!
・Midori-ku, Yokohama | We performed roof overlay (cover method) before installing solar panels!
・Midori-ku, Yokohama | Roof Overlay | We performed panel removal and roofing 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, etc.
・We will introduce construction methods according to the type of roof construction and the degradation situation!
・Latest! About subsidies and reduction systems that can be used for renovations!
・What is the cost range for rain gutter repair and cleaning? Tips on timing and choosing contractors for fire insurance too!!
・Renovation Store in Kanagawa Prefecture, Yokohama | 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!
