Hello!
We are 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 a roof renovation in Ota-ku, Tokyo.
The current roof renovation involves the removal of a skylight and the replacement of the existing mortar tiles with Super Galtect roofing!
Roof replacement work means dismantling and removing the existing roof and re-covering it with a new roof,
which is a roofing project.
Additionally, switching from tiles to a metal roof significantly reduces the weight of the roof, enhancing seismic resistance.
The weight of the Super Galtect used this time is one-tenth that of the tiles!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Construction Data for Ota-ku, Tokyo
| Construction Location |
| Ota-ku, Tokyo |
| Work Details |
| Installation of Temporary Scaffolding Roof Replacement Work Removal of Skylight |
| Background to the Work |
|
●Inquiry Details ●Proposal Details |
| Building Information and New Materials Used |
|
●Building Information ●New Materials Used |
| Price Range |
| 900,000 to 1,000,000 |
| Construction Period |
| About 1 week |
| Completion Month |
| February 2025 |
Roof Replacement Construction Procedure
1. Demolition of Existing Roofing Material
2. Removal of Skylights
3. New Sheathing Installation
4. Roofing Installation (Waterproof Sheet)
This underlayment boasts the highest quality, unmatched in waterproofing and durability. By sandwiching the modified asphalt layer between non-woven fabric and base paper, it fully exhibits the inherent performance of modified asphalt.
The expected durability is about 30 years!
5. Custom Fabrication (Curlicue & Eaves)
The components used are made of SGL steel plate.
6. Main Construction (Aiji Industry / Super Galtect)
The fasteners used for the Galtect main roof are genuine stainless steel renovation screws from Aiji Industry!
Once the roof is completed up to the ridge, we will install the necessary materials to secure the ridge cap, known as the “kanban.” We offer three types of kanban: cedar, resin, and galvalume steel, and this time we used galvalume steel!
Galvalume steel is expected to have three times the durability compared to cedar! Unlike resin or cedar, it does not crack, providing peace of mind!
Our original integrated waste board made of galvalume steel for the ridge base is highly durable, offers strong fastening, and has excellent wind resistance! Even if rainwater enters from the ridge, it has a mechanism to discharge rainwater to the outside, ensuring high waterproofing performance! It is perfect for the ridge base of Super Galtect!
7. Ridge Cap Processing and Sealing at Various Locations
We will process and install the
The screws used for fixing are made of rust-resistant stainless steel with waterproof packing!
Unlike nails, screws with packing are less likely to come loose and securely fix the ridge cap to the purlin!
Although it is not visible after construction,
installing a face plate on the inside of the ridge cap enhances waterproofing!
It firmly protects the ridge, which is a critical part of the roof.
8. Cleaning
About Roofing Materials
The roofing material used is the Super Galtect from Aijii Industry.
The Super Galtect comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation.
Our company also provides 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 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 warm winter experience.
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 the Super Galtect from Aijii Industry is the most frequently used in our construction achievements, gaining significant attention!
Colors
■ Shade Black
■ Shade Brown
■ Shade Blue
■ Shade Moss Green
■ Shade Charcoal
■New Color Shade Wine Red
You can choose from 6 colors!
This time, the cover work was completed very well in Charcoal!
The customer was extremely satisfied!
Thank you very much!
Please check out other roofing work results from here!
| Roof Material |
|
|---|---|
| Manufacturer Warranty | Coating 15 years, Red Rust 20 years, Hole 25 years |
| Expected Durability | About 40 years |
| Color Used This Time |
Shade Charcoal
|
For Roof Renovation in Ota-ku, Tokyo, Trust Kakeru Koumuten!
We have a wealth of experience in roof renovations in Tokyo.
We are happy to assist with roof overlay work, roof replacement, 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 roof renovation” or “I want to know about roofing materials,” please feel free to contact us!
Long-term Reliability
All the roofing materials we use come from reliable products that offer long-term warranties. For example, the Super Galtect we used this time comes with a 15-year paint 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 handle roofing materials with even higher durability and better insulation properties.
Summary
This was our construction record for roof replacement work in Ota-ku, Tokyo!
We are happy to assist with partial roof repairs, including roof overlay work, roof replacement work, and leak repairs.
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 work to roofing and exterior painting work.
We are confident that our “cost, quality, and planning efficiency” in exterior renovation work will not be outdone by other companies!
We are confident in our exterior renovations, so we welcome competitive estimates!
We offer comprehensive construction warranties and aftercare maintenance, and we have received positive feedback for our appropriate 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 roof overlay methods, so please take a look if you are interested!
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・[Ota Ward, Tokyo] We performed roof overlay on a roof with skylights!
・[Ota Ward, Tokyo] We conducted exterior wall painting using heat-insulating paint!
・[Ota Ward, Tokyo] We performed exterior wall cleaning without the need for scaffolding at a senior facility!
・Aoba-ku, Yokohama | Kakeru Koumuten Co., Ltd. | Roof inspection using drones!
・Exterior wall cleaning without the need for temporary scaffolding!
・What is the cost range for roof remodeling? Types of construction and how to choose a contractor.
・Latest! Information on subsidies, grants, and reduction systems available for remodeling!
・How much does it cost for roof work? We introduce the cost range!
・About the Costs of Roof Overlay (Cover Method) | Roof Overlay (Layering) Construction Plans!
・Renovation Store in Kanagawa Prefecture, Yokohama | 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!
