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 in Aoba-ku, Yokohama.
There are several types of exterior renovations, and the work we are doing this time is a roof overlay (cover method) using Super Galtect!
We have implemented measures against leaks through the roofing work!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
目次
- 1 Roof Overlay Construction Procedure
- 1.1 1. Dismantling Existing Roof Ridge Flashing and Snow Guards
- 1.2 2. Installing Roofing (Waterproof Sheet)
- 1.3 3. Fabrication of Accessories (Karakusa, Keraba, Valley)
- 1.4 4. Main Construction (Aijii Industry/Super Galtect)
- 1.5 5. Processing of Ridge Cap and Sealing at Various Locations
- 1.6 6. Cleaning
- 1.7 About Roofing Materials
Roof Overlay Construction Procedure
1. Dismantling Existing Roof Ridge Flashing and Snow Guards
We will dismantle unnecessary parts (ridge flashing, snow guards) 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 detachment or scattering of the ridge flashing.[/chat]
2. Installing Roofing (Waterproof Sheet)

The roofing used in
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 properly installed, there will be no leaks!
We will ensure it is securely attached to prevent it from blowing away.
3. Fabrication of Accessories (Karakusa, Keraba, Valley)

Before the main roofing work, we will fabricate and install accessories such as keraba, karakusa, and valley metal!
The accessories used are genuine Galtect accessories made of SGL copper plate! [/chat]
4. Main Construction (Aijii Industry/Super Galtect)

After the fabrication of accessories, we will install the Galtect main roofing up to the ridge!
Once the roofing is completed up to the ridge, we will install the necessary materials for securing the ridge board, known as the kanban. There are types of kanban made of 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![/chat]
5. Processing of Ridge Cap and 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 edges, we will fabricate and install a component called a rain guard.
The nails and screws used for fixing are made of stainless steel, which is resistant to rust![/chat]
6. Cleaning

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 of SGL steel plate, it is resistant to rust.
The insulation material is tightly applied from edge to edge of the roofing material, creating a metal sheet that integrates the steel plate 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.
Additionally, it has soundproofing properties, which reduce the sound of rain.
Moreover, it is lightweight 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 our construction records show that the Super Galtect from Aijii Industrial is the most frequently used, gaining significant attention!
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 in Shade Brown 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 |
|
|---|---|
| Manufacturer Warranty | Coating 15 years, Red Rust 20 years, Puncture 25 years |
| Expected Durability | About 40 years |
| Color Used This Time |
Shade Brown
|
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exterior work, please consult Kakeru Koumuten Co., Ltd.!
We handle everything from temporary scaffolding to roofing and exterior painting completely in-house. We are confident that our costs, quality, and planning are unmatched compared to other companies!
We welcome competitive estimates with confidence!
You’ll be glad you asked! We are committed to the requests we receive with sincerity.
We also have information on roofing costs and pricing plans for the roof overlay 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!
・Aoba-ku, Yokohama | We performed roof overlay work using Super Galtuct!
・Aoba-ku, Yokohama | Roof Remodeling | We performed overlay work with Super Galtuct!
・Aoba-ku, Yokohama | We performed overlay work with Super Galtuct in Urbanie!
・DIY Painting Plan! For those who want to try DIY roof and exterior wall painting! We will only set up the scaffolding!
・Introducing roofing materials that cannot be painted or are not recommended! Roof painting is a no-go!
・What are the average costs for roof remodeling? Types of work and how to choose a contractor, etc.
・We will introduce construction methods according to the type of roof work and the degradation situation!
・Latest Version! About Grants, Subsidies, and Reduction Systems Available for Renovations!
・What are the market prices for rain gutter repairs and cleaning? Tips on timing, fire insurance, and choosing contractors!
・Renovation Store in Yokohama, Kanagawa Prefecture | What is Roof Overlay (Roof Cover Method)?
Consultations via LINE are also very welcome◎
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!



