Fujisawa City | We Implemented Leak Prevention Measures Using the Roof Overlay Method!

BEFORE

AFTER

Hello!
We are 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 an exterior renovation project in Fujisawa City, Kanagawa Prefecture.
The work involved a roof overlay (cover method) using Super Galtect!
We implemented measures against leaks through the roofing work!

Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.

Roof Overlay Construction Procedure

1. Dismantling Existing Ridge and Snow Stops

We will dismantle unnecessary ridge flashing (red circle) and snow stops for the overlay method! The lifespan of wooden purlins is about 10 to 15 years. Exceeding the lifespan can lead to corrosion and discoloration, resulting in the ridge flashing coming loose or being blown away.

2. Installing Roofing (Waterproof Sheet)

The roofing used is Jouyu Pulp Industry/Sunlight G!
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 solid, there will be no leaks!

We will securely attach it to prevent it from blowing away!

3. Fabrication of Accessories (Karakusa, Keraba, Valley)

Before the main roof construction, we will process and install accessories such as keraba, karakusa, and valley metal!
The accessories used are genuine Galtect accessories made of SGL copper plate!

4. Main Construction (Aiji Industry/Super Galtect)

After processing the accessories, we will install the Galtect main body up to the ridge!
Once the installation reaches the ridge, we will set up necessary materials called “kanbari” to secure the ridge metal. There are two types of kanbari: cedar and resin, and this time we used resin!
The resin type is expected to have twice the durability of the cedar type!

5. Processing of Ridge Metal and Sealing at Various Locations

Next, we will process and install the ridge metal. We will firmly apply sealing on the inside of the joints. For the wall edges, we will process and install a component called rain stop metal.
The nails and screws used for fixing are made of stainless steel, which is resistant to rust!

6. Cleaning

We will clean up the debris that has fallen onto the balcony and rain gutters. We will thoroughly remove items like nails and metal scraps that could cause injuries. Additionally, we will wipe away any footprints left on the roof to keep it clean.

About Roofing Materials

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.
Our company also provides a 10-year construction warranty!
Made of SGL steel plate, it is resistant to rust.
Insulation material is tightly adhered from edge to edge of the roofing material, creating a metal plate that integrates steel and insulation.
During installation, 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 a warm winter.
Additionally, it has soundproofing properties, reducing the sound of rain.
Moreover, it is lightweight compared to other roofing materials, which minimizes the sway during earthquakes, making it a good earthquake countermeasure.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and our company’s construction results show that the Super Galtect from Aijii Industrial is the most popular and highly regarded!

Color

■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 results from here!

Summary

Roof Material	Aiji Giken/Super Galtect
Manufacturer Warranty	Coating 15 years, Red Rust 20 years, Puncture 25 years
Expected Durability	About 40 years
Color Used This Time	Shade Brown

For Exterior Renovations in Fujisawa City, Kanagawa Prefecture, Trust Kakeru Koumuten!

Our company has extensive experience in roof renovations in Fujisawa City.
We are happy to assist with exterior wall painting, roof overlay work, roof replacement, and even partial roof repairs such as leak fixes.
If you have any questions or concerns like “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!

As an exterior renovation company based in Aoba-ku, Yokohama, we have handled many roof renovations throughout Kanagawa Prefecture and have a deep understanding of the needs of our local customers.

“I want it to last long with just one renovation.”

“I want to keep costs as low as possible.”

“I want to improve insulation because the indoors are hot.”

We provide optimal solutions for specific requests like these.

Conclusion

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 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!” 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.

Helpful information about exterior renovations can be found here!

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