Construction example

Aoba-ku, Yokohama | Roof Renovation | We performed a roof overlay using 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 Asao-ku, Kawasaki.
There are several types of exterior renovations, and this time, we used the roof overlay (cover method) with Super Galtect!
We implemented measures against leaks through the roofing work!

The existing roofing material is Urban, which is prone to cracking and is not suitable for painting, so the effective renovations would be either a roof overlay or a complete roof replacement.

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

Roof Overlay Construction Procedure

1. Existing Roof Ridge Cap

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

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 double the durability of regular asphalt roofing.
As a primary waterproofing measure, if the roofing is solid, there will be no leaks!

3. Component Processing (Curved Patterns, Eaves, Valleys)


Before the main roofing work, we will process and install components such as eaves, decorative scrolls, and valley metal!

The components used are genuine parts from Galttect, made of SGL copper plate!

4. Main Construction (Aiji Industrial / Super Galttect)


After processing the components, we will install the Galttect main roofing up to the ridge!
Once it is installed up to the ridge, we will place the necessary materials to secure the ridge board, known as the “kanban.” There are types of kanban made from cedar and resin, and this time we used a resin type!
The resin type is expected to have twice the durability compared to the cedar type!

5. Ridge Cap Processing & Sealing at Various Locations


Next, we will process and install the ridge cap. We will thoroughly apply sealing on the inside of the joints. At the wall edges, we will process and install components called rain guard metal.
We will use stainless steel nails and screws that are resistant to rust for securing!

6. Cleaning


We will clean up any 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 Industry.
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 from SGL steel plates, it is resistant to rust.
Insulation material is thoroughly applied from edge to edge of the roofing material, creating a metal sheet that integrates steel plates and insulation.
When installed, 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 warm winter experience.
Additionally, it has soundproofing properties, reducing the sound of rain.
Being lighter than other roofing materials, it also minimizes shaking during earthquakes, serving as an earthquake countermeasure.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and the Super Galtect from Aijii Industry is the most frequently used in our construction achievements and is receiving considerable attention!

Colors

■ 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 6 colors!

This time, the cover work was completed very well in Shade Brown!
The customer was very satisfied, and I was also very happy!
Thank you very much!

Please check out other roofing work achievements from here!

7. Painting of Auxiliary Parts (Rain Gutter, Kiri-Yoke, Shutter Box)

Canopy Sheet Metal

Ventilator

Handrails

Roof Material

Aijii Kogyo/Super Galtect

Aijii Industry/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

Shade Brown

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 such as leak fixes.
If you have any questions 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!

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 as much as possible,” or “increase insulation performance 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 puncture 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 a roofing material with excellent durability, but we also offer roofing materials with even higher durability and better insulation performance.

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 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.
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 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 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’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!