[Aoba-ku, Yokohama] Roof repair through roof overlay (cover method) and removal of solar panels was completed!
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 time, we would like to introduce a case study of exterior renovations in Minami-ku, Yokohama, Kanagawa Prefecture. The work included roof overlay (cover method) for roof repair, solar panel removal and reinstallation, eaves and fascia metal processing, and rain gutter replacement!
The roofing material used for this roof repair, Super Galtect, is the most commonly handled roofing material by our company and has a wealth of proven results!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Construction Data for Minami-ku, Yokohama
| Construction Location |
| Minami-ku, Yokohama |
| Work Details |
|
Roof Overlay (Repair) |
| Inquiry Details |
|
We received an inquiry from a customer living in Minami-ku, Yokohama, stating, “I was proposed a roof overlay (repair) by the solar panel contractor for aftercare, but since the building is over 30 years old, I want to proceed with the work but it was expensive, so I would like to get comparative estimates.” The customer requested a roof overlay (repair) using highly durable and insulated roofing materials. Given the location on a high ground with strong winds, we proposed Super Galtect, which is highly durable, has excellent insulation, and is also wind-resistant. They decided to entrust the work to us, stating, “It’s nearly 1 million yen cheaper than other companies.” Since the installation cost of temporary scaffolding tends to be higher due to the transportation costs to the elevated site, the customer decided to also replace the damaged and leaking rain gutters, as well as the fascia and eave metals, while the scaffolding was already set up! |
| Materials Used / New Materials |
|
◯ Roof Overlay (Repair) ◯ Fascia and Soffit Metal ◯ Rain Gutter Replacement |
| Price |
| 2.5 million – 3 million |
| Construction Period |
| Approximately 4 weeks |
| Completion Month |
| April 2024 |
Roof Overlay (Roof Repair) Construction Procedure
1. Temporary Removal of Solar Panels
There were a total of 30 solar panels. The removed solar panels will be carefully stored in our warehouse.
2. Laying Roofing (Waterproof Sheet)
This underlayment boasts the highest quality, unmatched in both waterproofing and durability. By sandwiching a modified asphalt layer between non-woven fabric and base paper, it fully demonstrates the inherent performance of modified asphalt.
The expected durability is approximately 30 years!
As a primary waterproofing measure, if the roofing is properly installed, there will be no leaks! We will ensure it is securely adhered to prevent it from blowing away.
When selecting the durability of the roofing sheet, choose one that is as close as possible to the durability of the new roofing material! New Liner Roofing has a durability that is relatively close to Super Galtect, so we recommend using New Liner Roofing when performing roofing work with Super Galtect!
3．Accessory Processing (Karakusa and Keraba)
During the roof overlay (roof repair), the roof will be higher than the existing one, which can cause rainwater to overflow the rain gutter. When using the overlay method, it is necessary to either adjust the rain gutter or use a setback type of karakusa to prevent the rainwater from overflowing the rain gutter.
4．Main Construction (Aiji Industry / Super Galtect)
The renovation screws from Aijii Industry, the manufacturer of Super Galtect, are specially designed for the cover method, providing high fastening strength and enhanced wind resistance.
They are recommended for cover methods on buildings located in areas with strong winds or exposed to wind!
5. Installation of Ridge Base (Nail Board)
The Galvalume steel version is expected to have three times the durability compared to the cedar version! Unlike resin or cedar, it does not crack, providing peace of mind!
We recommend selecting a ridge base with a durability close to that of the new roofing material, just like the roofing sheet.
For the lower ridge (corner ridge), we use our original integrated waste board Galvalume steel ridge base. The integrated waste board ridge base is designed to drain rainwater to the outside even if rainwater enters from the ridge, providing high waterproofing performance! It is ideal for the Super Galtect ridge base!
6. Processing of Ridge Metal and Sealing at Various Locations
We install flat-type face plates on the inside of the ridge to prevent rainwater intrusion! For standing seam roofs like Super Galtect, we recommend installing face plates as the ridge is a critical point!
7. Installation of New Solar Panel Base Rack Hardware
There are applicable brackets for each manufacturer and model of solar panel. Older solar panels may not have compatible brackets available.
8. Installation of Solar Panels
9. Cleaning
Procedure for Processing Eaves and Fascia Metalwork & Rain Gutter Replacement
The eaves board and fascia (the eaves board on the side with the rain gutter) play a critical role in preventing wind from negatively affecting your home.
During strong winds, such as those from typhoons, rain can blow in horizontally, so the eaves board and fascia help to disperse the wind, making it harder for rain carried by the wind to reach the junction between the roof and exterior wall materials. This helps to prevent wind-driven rain from entering.
Generally, the fascia board and the eaves (the fascia board on the side with the rain gutter) are maintained with “painting,” but when there is overall damage that cannot be repaired by painting, metalwork is performed.
The metalwork for the fascia board involves a renovation project where Galvalume steel sheets are placed over the fascia board.
This is also referred to as metal wrapping or covering work.
1. Existing Rain Gutter Dismantling
Since we will also be replacing the rain gutter this time, we will proceed with the dismantling and removal!
2. Substrate Adjustment & Flat Sheet Metal Processing
3. Installation of Fascia & Eaves Metal
4. Installation of New Eave Support Brackets
Due to the fascia (where the eaves brackets were installed) and the building’s distortion, there may be backflow even if the slope is set with the brackets. It is important to check the slope with a level against the fascia before attaching the brackets!
5. Installation of Eaves Gutter
6. Connection to Downspout
7. Water Flow Test and Cleaning
Finally, we will conduct a water flow test and clean up to complete the job!
During the water flow test, we will actually run water through the rain gutter to check for any leaks and ensure that water flows properly.
For the rain gutter, we used Panasonic / PC50. It has strength because it contains a steel plate inside.
Color
■Milk White
■Pearl Gray
■Modern Beige
■Oak Brown
■Shincha
■Black
That concludes our selection!
This time, we completed the replacement work beautifully using Shincha.
Our customer was very satisfied!
Thank you very much!
About the Roofing Material
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 high heat-reflective paint, allowing for a cool summer and warm winter experience.
Additionally, it has soundproofing properties, reducing the sound of rain.
Being lighter than other roofing materials, it also minimizes shaking during earthquakes, providing earthquake resistance.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and the Super Galtect from Aijii Industrial is our most frequently used material, receiving significant attention!
Colors
■Shade Black
■Shade Brown
■Shade Blue
■Shade Moss Green
■Shade Charcoal
■New Color Shade Wine Red
You can choose from these 6 colors!
This time, the cover work was completed very well with Shade Brown!
The customer was very satisfied, and I was also very happy!
Thank you very much!
Please check out other roofing work examples from here!
| Roof Material |
|
|---|---|
| Manufacturer Warranty | Coating 15 years, Red rust 20 years, Puncture 25 years |
| Expected Durability | About 40 years |
| Color Used This Time |
Shade Brown
|
Leave Your Roof Repairs in Minami-ku, Yokohama to Kakeru Koumuten!
As we are based in Yokohama, we have extensive experience in roof renovations and repairs in Minami-ku, Yokohama.
We are happy to assist with partial roof repairs, including exterior painting, roof overlay (cover method), roof replacement, leak repairs, and rain gutter work.
If you have any questions or concerns such as “I just want to know the estimate for roof renovation,” “I want to know about roofing materials,” or “I want to ask about rain gutter work,” please feel free to contact us!
As an exterior renovation company in Aoba-ku, Yokohama, we have handled many roof renovations in Kanagawa Prefecture and have a deep understanding of the needs of local customers.
“I want it to last long with just 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.
Minami-ku, Yokohama has many narrow roads and roads with heavy traffic. Therefore, there may be cases where we cannot start construction immediately due to the need for road use permits or occupancy permits before beginning work.
In urgent cases like leak repairs, we may be able to provide emergency measures without scaffolding, so please consult with us!
List of Areas in Minami-ku, Yokohama
Iidagaya Kamimachi, Minami-ku / Iidagaya Shimomachi, Minami-ku / Iidagaya Nakamachi, Minami-ku / Urabunecho, Minami-ku / Eirakucho, Minami-ku / Enokucho, Minami-ku / Ooka 1-chome, Minami-ku / Ooka 2-chome, Minami-ku / Ooka 3-chome, Minami-ku / Ooka 4-chome, Minami-ku / Ooka 5-chome, Minami-ku / Ookacho, Minami-ku / Ohashicho, Minami-ku / Koudai, Minami-ku / Karasawa, Minami-ku / Kyoshincho, Minami-ku / Kommyoji, Minami-ku / Koganemachi, Minami-ku / Sakae no Tani, Minami-ku / Sannomachi, Minami-ku / Sanya, Minami-ku / Shimizu ga Oka, Minami-ku / Yadocho, Minami-ku / Shirokanemachi, Minami-ku / Shiramizumachi, Minami-ku / Shinkawacho, Minami-ku / Takasagomachi, Minami-ku / Takanemachi, Minami-ku / Chitosecho, Minami-ku / Torimachi, Minami-ku / Nakazato 1-chome, Minami-ku / Nakazato 2-chome, Minami-ku / Nakazato 3-chome, Minami-ku / Nakazato 4-chome, Minami-ku / Nakazatocho, Minami-ku / Nakajimacho, Minami-ku / Nagata Kita 1-chome, Minami-ku / Nagata Kita 2-chome, Minami-ku / Nagata Kita 3-chome, Minami-ku / Nagata Sannoudai, Minami-ku / Nagatadai, Minami-ku / Nagatacho, Minami-ku / Nagata Higashi 1-chome, Minami-ku / Nagata Higashi 2-chome, Minami-ku / Nagata Higashi 3-chome, Minami-ku / Nagata Minami 1-chome, Minami-ku / Nagata Minami 2-chome, Minami-ku / Nagata Minami-dai, Minami-ku / Nakamuracho, Minami-ku / Nishinakacho, Minami-ku / Yahatacho, Minami-ku / Hananokimachi, Minami-ku / Hieicho, Minami-ku / Higashimakidacho, Minami-ku / Fushimicho, Minami-ku / Futabacho, Minami-ku / Heiraku, Minami-ku / Bessho 1-chome, Minami-ku / Bessho 2-chome, Minami-ku / Bessho 3-chome, Minami-ku / Bessho 4-chome, Minami-ku / Bessho 5-chome, Minami-ku / Bessho 6-chome, Minami-ku / Bessho 7-chome, Minami-ku / Besshocho, Minami-ku / Bessho Nakazato-dai, Minami-ku / Horinouchicho, Minami-ku / Makidacho, Minami-ku / Maesatocho, Minami-ku / Maganecho, Minami-ku / Manseicho, Minami-ku / Minami Ota 1-chome, Minami-ku / Minami Ota 2-chome, Minami-ku / Minami Ota 3-chome, Minami-ku / Minami Ota 4-chome, Minami-ku / Minami Otacho, Minami-ku / Minami Yoshidacho, Minami-ku / Miharudai, Minami-ku / Miyamotocho, Minami-ku / Mikishicho, Minami-ku / Mutsukawa 1-chome, Minami-ku / Mutsukawa 2-chome, Minami-ku / Mutsukawa 3-chome, Minami-ku / Mutsukawa 4-chome, Minami-ku / Mutsukawacho, Minami-ku / Mutsumicho, Minami-ku / Motokubochō, Minami-ku / Yoshinocho, Minami-ku / Wakamiya-cho, Minami-ku
Summary
This concludes the construction achievements for the roof overlay (roof repair) and solar panel installation work in Minami-ku, Yokohama.
When performing a roof overlay from slate to Super Galtect, the type of brackets changes, which may cause a slight misalignment in the placement of the solar panels. Since changes in placement can affect power generation, it is advisable to confirm this during the estimation phase to prevent any issues.
Additionally, the cost of removing and reinstalling solar panels tends to be high when replacing the base rack, so it is recommended to use durable roofing materials like Super Galtect that require minimal maintenance for roof 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!
We are also happy to handle solar panel installation and removal work!
Kakeru Koumuten is a remodeling company strong in exterior renovations, and we conduct complete in-house construction from temporary scaffolding to roofing and exterior painting work.
Regarding exterior renovation work, we are confident that we will not be outdone by other companies in terms of “cost, quality, and efficiency”!
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!
“I’m glad I asked them!” We take every request seriously to ensure you feel this way.
We also have information on roof construction costs and pricing plans for roof overlay (roof repair), so please feel free to take a look!
We look forward to your inquiries. Thank you very much.
Helpful information about exterior renovations can be found here!
・【Minami Ward, Yokohama】We removed the skylight and performed a roof renovation using the roof overlay method!
・【Minami Ward, Yokohama】Roof work｜We performed a roof overlay using Super GaluTect!
・【Minami Ward, Yokohama】Interior renovation｜We replaced the flooring and floor tiles!
・Exterior wall cleaning plan that does not require temporary scaffolding!
・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 market price for roof renovations? Types of work and how to choose a contractor!
・Latest｜About subsidies and reduction systems available for renovations!
・How much does it cost for roof work? We introduce the cost range!
・About the costs of the roof overlay method｜Construction plan for the roof overlay method (overlaying)!
・Renovation Store in Kanagawa Prefecture, Yokohama | What is Roof Overlay (Roof Cover Method)?
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