Construction example

Yokohama City | Tsurumi Ward | Mr. F’s Residence | 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 Tsurumi-ku, Yokohama.
There are several types of exterior renovations, and this time we performed a roof overlay (cover method) using Super Galtect!
We implemented measures against leaks through the roofing work!

This time, we carried out the overlay work from “Urbanie” to “Super Galtect”!

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

Construction Data for Tsurumi-ku, Yokohama

Construction Location
Tsurumi-ku, Yokohama
Construction Details

Temporary scaffolding

Roof Overlay (Cover Method)

Existing Base / Materials Used
Existing Roofing Material: Urbanie
Materials Used for Roof Overlay: Super Galtect
Construction Period
Approximately 1 week
Completion Month
February 2023

Roof Overlay Construction Procedure

1. Dismantling Existing Roof Ridge Flashing and Snow Stops

We will dismantle unnecessary parts for the overlay method (ridge flashing, snow stops)! The durability of wooden purlins is about 10 to 15 years. Exceeding the durability period can lead to corrosion and discoloration, resulting in the detachment and scattering of ridge flashing.

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.
With a solid roofing acting as the primary waterproofing, there will be no leaks!
We will ensure it is securely attached so it won’t blow away.

3.Accessory Processing (Karakusa & Keraba)


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

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 lay the Galtect roofing up to the ridge!
Once laid up to the ridge, we will install necessary materials called “kanban” to secure the ridge cap. There are two types of kanban: cedar and resin, and this time we used resin!
Resin is expected to have twice the durability compared to cedar!

5. Ridge Cap Processing & Sealing at Various Locations


Next, we will process 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 a rain guard metal. The photo shows the ventilation ridge, which allows heat and humidity from the attic to escape outside.
We use stainless steel nails and screws that are resistant to rust!

6. Cleaning


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

About Roofing Materials

The roofing material used is Aijii Industrial’s Super Galtect.
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 steel and insulation.
When installed, insulation is applied even to the parts where the roofing materials overlap, and the surface is coated with a highly heat-reflective 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, providing earthquake resistance.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and Super Galtect from Aijii Industrial is the most frequently used material in our construction achievements 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 was completed very well in Shade Black!
The customer was very satisfied, and I was also very happy!
Thank you very much!

Please check out other roofing work examples 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

 

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.!
We carry out everything from temporary scaffolding work to roof construction and exterior painting entirely in-house. We are confident that we won’t be outdone by other companies in terms of cost, quality, or efficiency in exterior work!
We welcome competitive estimates with confidence!
You will be glad you chose us! We take every request seriously to ensure you feel that way.

We also have information on roof construction costs and pricing plans for roof overlay methods, 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!

Leave your roof renovation in Tsurumi-ku, Yokohama to Kakeru Koumuten!

Our company is based in Yokohama, so we have extensive experience in roof renovations in Tsurumi-ku, Yokohama.
We are happy to assist with roof overlay work, roof replacement, and partial roof repairs such as leak repairs.
If you want to know just the estimate for roof renovations or have questions about roofing materials, please feel free to contact us!

Community-Focused Service

We are an exterior renovation company located in Aoba-ku, Yokohama, and we have handled many roof renovations in Yokohama, deeply understanding the needs of our local customers.

I want it to last a long time 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 to specific requests like these.

Long-term Reliability

All the roofing materials we use are highly reliable products that come with long-term warranties. For example, the Super Galtect we used this time comes with a manufacturer warranty of 15 years for the coating and 25 years for perforation. We also provide a 10-year construction warranty, so you can use it with peace of mind for a long time after just one renovation.
Galtect is a lightweight roofing material that excels in durability and cost performance, but we also offer 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 exteriors, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!

Kakeru Koumuten is a renovation company strong in exterior renovations, and we carry out complete in-house construction from temporary scaffolding to roofing and exterior wall painting.
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 also have robust construction warranties and aftercare maintenance, and we have received positive feedback for our appropriate proposals that match 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!

LINE consultations are also very welcome◎

We are also updating our Instagram regularly◎ Please follow us◎

 
 

 

 

 
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!