Hello!
I am Yamanaka from 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 Asahi-ku, Yokohama.
The work this time involves a roof overlay (cover method) on a slate roof to Ridgeway!
On this page, I 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.
Construction Data for Asahi-ku, Yokohama
Roof Overlay (Cover Method) Construction Steps
1. Dismantling Existing Roof Ridge Flashing
2. Installing Roofing (Waterproof Sheet)
It is made of modified asphalt roofing, which is said to have double the durability 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 securely attached to prevent it from blowing away.
3. Fabricating Accessories (Curly Patterns and Eaves)
The materials used for the accessories are made of galvalume steel.
4. Main Construction (Asahi Fiberglass/Ridgeway)
Once the roofing is completed up to the ridge, we will install a material called a “kanban” which is necessary for securing the ridge cap. There are two types of kanban: cedar and resin, and this time we used a resin type!
The resin type is expected to have three times the durability compared to cedar!
5. Ridge Cap and Sealing
The nails and screws used for securing are made of stainless steel, which is resistant to rust!
6. Cleaning
About Roofing Material (Ridgeway)
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 onto the surface, it is a roofing material that does not require painting, thus reducing maintenance costs!
Additionally, because it uses fine natural stones on the surface, you won’t be troubled by rain noise.
Moreover, it is a lightweight roofing material, making it strong against earthquakes and providing seismic resistance.
*After installation, some of the surface decorative stones may fall off for about a week, but there is no issue with quality.
Colors
■Dual Black
■Harvard Slate
■Vintage Green
■Dual Brown
■Earthtone Cedar
This time, we completed a roof construction with dual black that turned out exceptionally well!
The customer was very satisfied, and I was also very happy!
Thank you very much!
Please take a look at 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 another, it is also referred to as “overlapping roofing.”
Benefits of the overlay method
Since a “new roof” is placed over the “current roof,” demolition work is almost unnecessary, meaning that very little waste material is generated.
This is its most significant feature, leading to various benefits.
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 website).
Some building materials used in structures constructed before 2004 contain asbestos. Asbestos-containing materials are challenging to demolish due to their high environmental impact, resulting in high costs for both demolition and waste disposal. 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 they are not destroyed or crushed, they 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, the construction can be completed in a shorter time frame compared to painting or complete roof replacement. A shorter construction period means lower labor costs, which in turn makes the overall cost more affordable.
This also reduces psychological anxiety about having to live in an unusual environment.
When scaffolding is set up, there may be inconveniences such as difficulty entering and exiting or opening 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 undertake. We are very grateful that we have been continuously engaged in roof overlay method projects without interruption.
| Roof Material |
|
|---|---|
| Manufacturer Warranty | 10 years |
| Expected Durability | 25 to 30 years |
| Color Used This Time |
Dual Black
|
Kakeru Koumuten’s Roof Renovation and Leak Repair Process
1. Inquiry and Consultation
First, please let us know the condition of your roof by phone or email!
2. On-Site Investigation and Estimate
We will arrange a date and time for the on-site investigation based on your preferences and visit your home.
We will check the shape of the roof and building, the material and installation status of the rain gutters, and more.
After that, we will create and provide an estimate that includes the necessary leak repair work and costs!
3. Decision on Roof Renovation and Leak Repair
Based on the inspection results and the leak repair estimate, we will ask for your decision.
Rest assured, we will not pressure you into proceeding with the work.
You are welcome to compare our estimate with others before making your decision!
4. Contract and Schedule Construction
Once you have thoroughly reviewed the estimate and decided to proceed with Kakeru Koumuten, we will have you fill out the contract (by mail or in person) and discuss your availability to schedule the construction dates.
5. Start of Construction
Experienced workers will carry out the construction responsibly! Depending on the nature of the work and weather conditions, the scheduled construction period may shift or extend.
In such cases, we strive to conduct the work in a manner that minimizes inconvenience to you and your neighbors.
6. Completion of Construction (Inspection and Confirmation with Photos Before Handover)
We will explain the repair items and confirm with photos before handing over the completed work.
If you have any concerns at that time, please feel free to let us know!
7. Payment
・Bank transfer
・Cash
・Renovation loan
You can choose your payment method from the above three options.
Voices of Customers Who Have Actually Had Work Done
Tips for Estimating Exterior Painting and Roof Repairs
If you are considering exterior painting or roof repairs around Asahi-ku, it is important to have knowledge about budget and estimates!
◇Basic Knowledge to Know Before Requesting an Estimate
Before requesting an estimate, it is important to understand the processes and roles involved in exterior painting and roof repairs. Each process directly affects the quality and durability of the paint, which is also reflected in the cost. Additionally, the type of paint used and the area to be painted also impact the cost, so be sure to gather this information as well. Furthermore, it is essential to check the reliability, track record, and quality of after-sales service of the contractor to ensure you can trust them with your project.
◇Reasons to Obtain Estimates from Multiple Contractors
Exterior painting and roof repairs are large-scale projects, and costs can often be high. Therefore, it is recommended to obtain estimates from multiple contractors.
Services and prices vary by contractor, and comparing estimates makes it easier to select a contractor that fits your budget. It also serves the purpose of identifying inappropriate estimates or unclear items. This not only helps in understanding unnecessary costs but also prevents troubles after the contract is signed.
You can request estimates by applying through the contractor’s website or contacting them directly.
Kakeru Koumuten Co., Ltd. offers free inspections and estimates, so feel free to consult us for comparative estimates as well!
◇How to Read an Estimate and Points for Comparison
When comparing estimates, key points include each item, total amount, materials used, construction methods, and after-sales service. For example, if only one part is inexpensive, it is necessary to determine whether it is truly reasonable. Comparing each estimate and considering the overall balance is advisable.
◇Checkpoints for Additional Costs
In exterior painting and roof repairs, additional costs may arise. By understanding the checkpoints in advance, you can prevent going over budget. Setting up scaffolding is necessary for the work. Be sure to confirm whether the cost of scaffolding setup is included in the estimate.
Moreover, in older buildings, deterioration may progress more than it appears, and if there are many areas to be worked on, additional costs may arise accordingly. Additionally, the cost can vary depending on the type of paint used. If durability and appearance are prioritized, more expensive paint options may be considered.
By checking the detailed breakdown when obtaining estimates, you can reduce the risk of incurring high additional costs.
Maintenance After Construction
◇Importance of Maintenance After Construction
Maintenance after exterior painting and roof repairs is a crucial factor in extending the lifespan of your home. Neglecting maintenance can lead to the newly painted exterior and repaired roof deteriorating quickly, resulting in the risk of incurring high costs. The exterior walls and roof of a building are constantly exposed to harsh natural environments such as rain, wind, UV rays, and temperature changes. Regular maintenance can minimize damage and maintain the beauty and comfort of your home. Additionally, it can help avoid large-scale repair work and the significant expenses that come with it.
◇ Maintenance Methods and Frequency
For post-construction maintenance, inspections by professionals are effective. Even minor damages can be detected and repaired early. The recommended frequency for maintenance is generally exterior painting every 5 years and roof repairs every 3 years. This is just a guideline and may vary depending on local climate conditions and the structure of the house.
By implementing regular maintenance, you can protect your valuable home. If you are considering exterior painting or roof repairs in the Aoba-ku area, please contact Kakeru Koumuten Co., Ltd. We handle repairs and renovations for roofs, rain gutters, and exteriors, and we are committed to meeting all your needs. Trust Kakeru Koumuten Co., Ltd. for prompt and careful work.
Leave Your Roof Renovation in Aoba-ku, Yokohama to Kakeru Koumuten Co., Ltd.!
Our company has extensive experience in roof renovations in Aoba-ku.
We are happy to assist with partial roof repairs such as roof overlay work, roof replacement, 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-Focused Service
As an exterior renovation company based in Aoba-ku, Yokohama, we have handled many roof renovations in nearby Aoba-ku and have a deep understanding of the needs of local customers. Whether you want to make your renovation last longer with a single project, to keep costs down, or to improve insulation because your indoors are hot, we provide the best solutions for your specific requests.
List of Areas in Aoba-ku, Yokohama
Ichizawa-cho, Aoba-ku / Imagawa-cho, Aoba-ku / Imajuku, Aoba-ku / Imajuku-cho, Aoba-ku / Imajuku Nishimachi, Aoba-ku / Imajuku Higashimachi, Aoba-ku / Imajuku Minamimachi, Aoba-ku / Oike-cho, Aoba-ku / Odaka-cho, Aoba-ku / Kashiwamachi, Aoba-ku / Kanagatani, Aoba-ku / Kamikawaicho, Aoba-ku / Kamishirane, Aoba-ku / Kamishirane-cho, Aoba-ku / Kawaijuku-cho, Aoba-ku / Kawai Honmachi, Aoba-ku / Kawashima-cho, Aoba-ku / Kirigasaku, Aoba-ku / Sakonyama, Aoba-ku / Sasanodai, Aoba-ku / Sachigaoka, Aoba-ku / Santanda-cho, Aoba-ku / Shikibidai, Aoba-ku / Shimokawaicho, Aoba-ku / Shirane, Aoba-ku / Shirane-cho, Aoba-ku / Zenbu-cho, Aoba-ku / Miyako-cho, Aoba-ku / Tsurugamine, Aoba-ku / Tsurugamine Honmachi, Aoba-ku / Nakao, Aoba-ku / Nakahopegaoka, Aoba-ku / Nakazawa, Aoba-ku / Nakashirane, Aoba-ku / Nishikawashima-cho, Aoba-ku / Higashihopegaoka, Aoba-ku / Futamatagawa, Aoba-ku / Honjuku-cho, Aoba-ku / Honmura-cho, Aoba-ku / Makigahara, Aoba-ku / Minamihopegaoka, Aoba-ku / Minamihonjuku-cho, Aoba-ku / Yasashicho, Aoba-ku / Wakabadai, Aoba-ku
Conclusion
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exteriors, or external structures, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten Co., Ltd. is a remodeling company strong in exterior renovations, and we carry out everything from temporary scaffolding work to roof work and exterior painting completely in-house.
When it comes to 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 cost performance and appropriate proposals that align with our customers’ future life plans!
We want you to think, “I’m glad I asked them!” Therefore, we take every request we receive seriously.
We also have information on roof construction costs and pricing plans for the roof overlay (cover method), so please take a look if you are interested!
We look forward to your inquiries. Thank you very much.
・Asahi-ku, Yokohama | Roof Overlay (Cover Method) | We performed a cover method using Ridgeway!
・Asahi-ku, Yokohama | We carried out a renovation through exterior wall painting!
・Midori-ku, Yokohama | Roof Overlay (Cover Method) | We performed panel removal and roof 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 remodeling? Types of work and how to choose a contractor, etc.
・We will introduce construction methods according to the type of roof work and the degradation situation!
・Latest! About subsidies and reduction systems available for renovations!
・About the costs of roof cover work | Kakeru Koumuten’s roof construction plan!
・Renovation store in Kanagawa Prefecture, Yokohama | What is roof layering (roof overlay 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!
