Construction example

Sagamihara City | Midori Ward | Performed roof overlay (cover method) using Super Galtect!

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 Sagamihara City, Kanagawa Prefecture.
There are several types of exterior renovations, and this project involves the 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. Existing Roof Ridge Flashing

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. Installing Roofing (Waterproof Sheet)

The roofing used is Nissin Kogyo/Kappa 23!
It is made of modified asphalt roofing material, which is said to have double the durability of regular asphalt roofing.
With a role as the primary waterproofing, 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 and Keraba)


Before the main roof construction, we will fabricate and install accessories such as keraba and karakusa!

The accessories used are the genuine accessories of Galtect, made from SGL copper plate!

4. Main Construction (Aiji Kogyo/Super Galtect)


After the accessory fabrication, we will install the Galtect main body up to the ridge!
Once it is installed up to the ridge, we will place the necessary materials to secure the ridge cap, known as the kanban. There are types of kanban made from cedar and resin, and this time we used the resin type!
The resin type is expected to have twice the durability compared to the cedar type!

5. Ridge Cap Fabrication and Sealing

Next, we will fabricate and install the ridge cap. We will apply sealing thoroughly on the inside of the joints. At the wall edge, we will process and install a component called the 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 on the balcony and rain gutters. Since items like nails and metal scraps can cause injuries, we will conduct a thorough cleaning. Additionally, we will wipe away any footprints left on the roof to ensure it looks pristine.

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.
We also provide a 10-year construction warranty!

Made from SGL steel plates, 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.
During installation, insulation is applied even to the parts where the roofing materials overlap, 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.
Moreover, it is lighter compared to other roofing materials, which reduces the sway during earthquakes, making it a good earthquake countermeasure.
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, gaining 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 achievements from here!

 

Roof Material

Aiji Giken/Super Galtect

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 Black

Shade Black

 

Leave Your Roof Renovation in Sagamihara City, Kanagawa to Kakeru Koumuten!

Our company has extensive experience in roof renovations in Sagamihara City.
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 like “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!

As an exterior renovation company based in Aoba-ku, Yokohama, we handle many roof renovations within 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 performance 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 issues with 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 also 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 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.

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!