Construction example

Aoba-ku, Yokohama | We performed a roof overlay (cover method) from Colonial NEO to Super Galtect!

BEFORE

AFTER

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 an exterior renovation project in Aoba-ku, Yokohama.
The work this time involves a roof overlay (cover method) using Super Galtect!
We implemented measures against leaks through roofing work!

The existing roofing material is Colonial NEO, which is prone to cracking and is not suitable for painting, so we proposed a roof overlay project.

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

Roof Overlay Construction Procedure

1. Existing Ridge and Snow Stops Demolition

We will dismantle unnecessary parts (ridge flashing) for the overlay method! The lifespan of wooden purlins is about 10 to 15 years. Once the lifespan is exceeded, corrosion and discoloration can occur, leading to the detachment and scattering of the ridge flashing.

2. Roofing Installation (Waterproof Sheet)

The roofing used is Jouyu Pulp Industry/Sunlight G!
It is made of modified asphalt roofing, which is said to have twice the lifespan of regular asphalt roofing.
As a primary waterproofing measure, if the roofing is solid, there will be no leaks!

We will ensure it is firmly installed so it won’t blow away!

3. Component Processing (Curly, Eaves, Valley)


Before the main roofing work, we will process and install components such as eaves, arabesque, and valley flashing!
The components used are genuine Galtect components made of SGL copper plate!

4. Main Construction (Aiji Industry/Super Galtect)


After processing the components, we will install the Galtect roofing up to the ridge!
Once the roofing is completed up to the ridge, we will install necessary materials called “nuki” to secure the ridge flashing. There are types of nuki made from cedar and resin, and this time we used cedar!

5. Ridge Flashing Processing & Sealing


Next, we will process and install the ridge flashing. We will thoroughly apply sealing on the inside of the joints. At the wall edge, we will process and install a component called rain stop flashing.
The nails and screws used for securing are made of stainless steel, which is resistant to rust!

6. Cleaning


We will clean up the debris that has fallen on 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 ensure it looks 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 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 interlock, and the surface is coated with a highly heat-resistant paint, allowing for a cool summer and a warm winter.
It also has soundproofing properties, reducing the sound of rain.
Additionally, it is lightweight compared to other roofing materials, which minimizes the sway during earthquakes, providing earthquake resistance.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and the Super Galtect from Aijii Industrial is the most commonly used in our construction projects and is receiving significant attention!

Color

■Shade Black
Shade Black
■Shade Brown
Shade Brown
■Shade Blue
Shade Blue
■Shade Moss Green
Shade Moss Green
■Shade Charcoal
Shade Charcoal

New Color Shade Wine Red

You can choose from these 6 colors!

This time, the cover work with Shade Black turned out exceptionally well!
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

Aiji Giken/Super Galtect

Manufacturer Warranty Coating 15 years, Red rust 20 years, Perforation 25 years
Expected Durability About 40 years
Color Used This Time

Shade Black

Shade Black

Leave Your Roof Renovation in Aoba-ku, Yokohama to Kakeru Koumuten!

Our company is based in Aoba-ku, so we have extensive experience in roof renovations in the area.
We are happy to assist with roof overlay work, roof replacement, and even partial roof repairs like leak fixes.
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 a home renovation company in Aoba-ku, Yokohama, we have handled many roof renovations and deeply understand the needs of local customers. Whether you want to “make it last long with one renovation,” “keep costs down,” or “improve insulation because the indoors are hot,” we provide optimal solutions for your specific requests.

Long-Term Reliability

All roofing materials we use come from reliable products that offer long-term warranties. For example, the Super Galtect used this time comes with a 15-year coating warranty and a 25-year perforation warranty. We also provide a 10-year construction warranty! You can use it with peace of mind for a long time after just one renovation.
Galtect is an excellent roofing material in terms of durability, but we also offer roofing materials with even higher durability and better insulation properties.

Conclusion

Estimates and inspections are, of course, free! If you have any issues with roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!

Kakeru Koumuten Co., Ltd. has become a strong remodeling company specializing 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 appropriate proposals that align with cost performance and our customers’ future life plans!

We want you to think, “I’m glad I asked them!” Therefore, we take every request seriously and work diligently on it.

We also have information on roof construction 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.

 

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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!