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 exterior renovations in Miyamae-ku, Kawasaki.
The work this time involves the roof overlay (cover method) construction using Hiranbi 220!
This page will explain the actual achievements carried out by Kakeru Koumuten!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Roof Replacement Construction Photos
1. Removal of Ridge and Snow Stops
2. Installing Roofing (Waterproof Sheet)
It is made of a delayed adhesion modified asphalt roofing material, which is said to have double the durability 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 attached so it won’t blow away.
3. Fabrication of Accessories (Curlicue and Eaves)
The materials used for the accessories are made of galvalume steel.
4. Main Construction (Inagaki Shouji / Hiranbee)
Once we have laid the roofing up to the ridge, we will install a nailing board, which is necessary for fixing the ridge metalwork. There are two types of nailing boards: cedar and resin, and this time we used a resin type!
The resin type is expected to have twice the durability compared to the cedar type!
5. Ridge Metalwork Processing & Sealing
The nails and screws used for fixing are made of stainless steel, which is resistant to rust!
6. Cleaning
About Roofing Materials
The roofing material used is Hiranbi 220 from Inagaki Shouji.
Hiranbi 220 comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation.
For re-roofing and roof overlay, we also provide a 10-year construction warranty!
If there are any leaks within 10 years, we will make repairs free of charge.
Made of Galvalume steel, it is resistant to rust.
The molded panels feature iris folds and wave processing to prevent distortion and enhance strength, as well as improve rainwater drainage and aesthetic effects.
Additionally, it excels in finish, durability, sound insulation, and wind resistance, and is lighter compared to other roofing materials, which reduces the sway during an earthquake, making it a good earthquake countermeasure.
In the recent roof overlay (cover) work, the roof becomes double-layered, which increases the weight, but Hiranbi is a lightweight roofing material, making it suitable for roof overlay (cover) work.
Color
Extreme – MAX Type
■ Gray Silver
■ Silver Black
■ Sepia
■ Moss Green
■ Bamboo Green
■ Midnight Blue
■ Jet Black
■ Dark Brown
■ Bright Red
Standard Type
■ Steel Black
■Marron Brown
■J Silver
You can choose from these options!
This time, the cover work with Silver Black turned out exceptionally well!
Thank you for your request!!
Please check out our other roofing project results from 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 laid over the existing one, it is also referred to as “overlapping roofing.”
Benefits of the Overlay Method
Since a “new roof” is placed over the “existing 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 part that requires demolition and waste disposal is 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 more details, please refer to 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?” 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 work 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 leads to lower expenses.
The psychological anxiety of having to live in an unusual environment is also reduced.
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 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 carry out. We are very grateful that we have been continuously engaged in roof overlay projects without interruption.
| Roof Material |
|
|---|---|
| Manufacturer Warranty | 15 years for coating, 25 years for perforation |
| Expected Durability | About 35 years |
| Color Used This Time |
Silver Black
|
Leave Your Roof Renovation in Miyamae-ku, Kawasaki to Kakeru Koumuten!
Our company has extensive experience in roof renovations in Miyamae-ku.
We are happy to assist with partial roof repairs, including roof overlay work, roof replacement work, and leak repairs.
If you have any questions or concerns, such as “I just want to know the estimate for the roof renovation” or “I want to know about roofing materials,” please feel free to contact us!
Community-Based Service
As an exterior renovation company in Aoba-ku, Yokohama, we have handled many roof renovations in the neighboring Miyamae-ku and have a deep understanding of the needs of local customers. Whether you want to “make it last long with a single renovation,” “keep costs down as much as possible,” or “improve insulation performance because the indoors are hot,” we provide optimal solutions to your specific requests.
Conclusion
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exterior structures, please consult with Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten is a remodeling company strong in exterior renovations, and we carry out everything from temporary scaffolding to roof work and exterior painting completely in-house.
We are confident that our “cost, quality, and efficiency” are unmatched compared to other companies when it comes to exterior renovation work!
We are confident in our exterior renovations, so we welcome competitive estimates!
We offer robust 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!
“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!
・Miyamae Ward, Kawasaki City | Roof Overlay (Cover Method) | We performed the cover method with Super Galtect!
・Miyamae Ward, Kawasaki City | We performed a roof replacement with tiles to Super Galtect!
・Miyamae Ward, Kawasaki City | We performed a roof overlay 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 are the average costs for roof remodeling? Types of construction and how to choose a contractor.
・Latest | Grants and subsidies available for remodeling, and reduction systems!
・How much does it cost to repair the roof? We introduce the average costs!
・What are the average costs for rain gutter repair and cleaning? Tips on timing, fire insurance, and choosing a contractor!
・Remodeling store in Yokohama, Kanagawa Prefecture | What is roof layering (roof overlay method)?
LINE consultations are also very welcome◎
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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!
