Construction example

Kanagawa Prefecture | Kawasaki City, Kawasaki Ward | K’s Residence: Roof Renovation and Leak Prevention Completed!

神奈川県|川崎市川崎区|K様邸:屋根リフォーム・雨漏り対策を行いました!

BEFORE
Kanagawa Prefecture | Kawasaki City, Kawasaki Ward | K's residence: Roof renovation and leak prevention completed!

AFTER
Kanagawa Prefecture | Kawasaki City, Kawasaki Ward | K's residence: Roof renovation and leak prevention completed!

Hello!
I am Yamanaka from Kakeru Koumuten Co., Ltd., a specialist in roofing, exterior painting, and exterior renovations located in Aoba-ku, Yokohama, Kanagawa Prefecture!
This is a case study of a roof renovation project in Kawasaki City, Kawasaki Ward, Kanagawa Prefecture.
The work involved a roof overlay (cover method) project (Ridgeway)!

This time, we implemented leak prevention measures through the roof overlay project!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.

We received a request for a roofing estimate through our website, and we were entrusted with the project!

Roof Overlay Project Construction Steps

1. Existing Roof Demolition

We will demolish the existing roof.
1. Existing Roof Demolition

2. New Sheathing Installation

After demolishing the roof, we will process and install new sheathing to fit the dimensions.
2. New Sheathing Installation

3. Roofing Installation (Waterproof Sheet)

The roofing used this time is modified asphalt. It is expected to have double the durability of asphalt roofing!
3. Roofing Installation (Waterproof Sheet)

3. Accessory Processing (Kera, Karakusa, Valley)

We will process and install the kera, karakusa, and valley metal work.

4. Main Construction

After installing the main body, we will place the purlin at the ridge and wall edges. This time, we used cedar purlins, but there are also purlins made of resin that are resistant to corrosion.
4. Main Body Construction

5. Purlin Processing

We will process and install the ridge metal. We will apply sealing firmly on the inside of the joints.
5. Purlin Processing
5. Purlin Processing

6. Cleaning

We will remove footprints and any debris that has fallen around the house and inside the rain gutters, and we will do a thorough cleaning.
We strive to leave the site cleaner after the work than it was before!

With that, the construction is complete!

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 stone 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
Dual Black

■ Harvard Slate
Harvard Slate

■ Vintage Green
Vintage Green

■ Dual Brown
Dual Brown

This time, we completed a roofing project using Harvard slate, and it turned out exceptionally well!
The customer was very satisfied, and I was also very happy!

Along with the roofing work, we were also entrusted with exterior painting, rain gutter replacement, and wave board replacement! Thank you very much!
During the construction period, we received a lot of snacks and treats. They were very delicious!
If you have any further needs, please feel free to leave it to Kakeru Koumuten!

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 layered, it is also referred to as “overlapping roofing.”
In the case of Mr. K’s residence, the existing roof was made of “tiles,” so it was replaced!

Advantages of the Overlay Method

Since a “new roof” is placed over the “current roof,” dismantling work is almost unnecessary, meaning that very little waste material is generated.
This is the biggest feature and leads to various advantages.

The only part that requires dismantling and waste disposal is the ridge cap, making it more cost-effective compared to full replacements.
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).
Building materials used in constructions before 2004 may contain asbestos. Asbestos-containing materials are difficult to dismantle due to their high environmental impact, and the costs for dismantling 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?” 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 consult us.

Additionally, the construction can be completed in a shorter period compared to painting or full replacement. A shorter construction period means lower labor costs, which in turn makes the costs 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 a significant advantage.

Our company specializes in roofing work, but the roof overlay method is the most frequently performed type of work we undertake. We are very grateful that we are continuously able to carry out roof overlay projects without interruption.

For Roof Renovations in Kawasaki City, Kawasaki Ward, Trust Kakeru Koumuten!

We have a wealth of experience in roof renovations in Kawasaki Ward.
We are happy to assist with roof overlay work, roof replacements, 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 an exterior renovation company based in Aoba-ku, Yokohama, we have handled many roof renovations in Kawasaki Ward and have a deep understanding of the needs of local customers. Whether you want to “make it last long with one renovation,” “keep costs down as much as possible,” or “improve insulation performance because the indoors are hot,” we provide optimal solutions for specific requests.

Long-Term Reliability

All the 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 handle 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 everything from temporary scaffolding to roofing and exterior painting completely in-house.
We are confident that in terms of “cost, quality, and efficiency”, we do not fall behind 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!

“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!

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For roofing, guttering, and exterior work and repairs in Kanagawa, contact Kakerukoumuten Co., Ltd..

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!