Hello!
This is Yamanaka from 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 a roof renovation project in Tsurumi-ku, Yokohama, Kanagawa Prefecture.
The work involved a roof overlay (cover method) (Super Galtect) project!
We implemented leak prevention measures through the roof overlay work!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Roof Overlay Work Procedure
1. Dismantling Existing Ridge and Snow Stops
We will dismantle only the ridge flashing and snow stops that obstruct the overlay work.
2. Laying Roofing (Waterproof Sheet)
The roofing material used this time is modified asphalt. It is expected to have double the durability of asphalt roofing!
3. Component Processing (Curly Patterns and Eaves)
We will process and install the eaves and curly patterns.
4. Main Construction
Once the main body is installed, we will place a ridge board at the peak and along the walls. This time, we used a cedar ridge board, but there are also ridge boards made of corrosion-resistant resin.
5. Ridge Metal Processing
We will process and install the ridge metal. We will firmly apply sealing on the inside of the joints.
6. Cleaning
We will remove footprints and any debris that may have fallen around the house and in the rain gutters, followed by a thorough cleaning.
We strive to ensure that the area is cleaner after the work than it was before!
That concludes the construction!
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 galvalume steel, it is resistant to rust.
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 high heat-reflective paint, allowing for a cool summer and warm winter.
Additionally, it has soundproofing properties, reducing the sound of rain.
Being lighter than other roofing materials, it also minimizes the sway during earthquakes, providing earthquake resistance.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and among our construction achievements, Aijii Industrial’s Super Galtect is the most popular and highly regarded!
Colors
■Shade Black
■Shade Brown
■Shade Blue
■Shade Moss Green
■Shade Charcoal
You can choose from these 5 colors!
This time, the roof overlay work with Shade Moss Green turned out exceptionally well!
Thank you for your request!!
What is the Roof Overlay Method?
The roof overlay method involves leaving the current roof almost intact and placing a new roof on top of it, effectively covering it.
Literally, it is a method of covering a roof with another roof. Therefore, the roof becomes double-layered. Since the roof is laid over, it is also referred to as “overlapping roofing.”
Advantages of the Overlay Method
Since a “new roof” is placed over the “current roof,” demolition work is almost unnecessary, meaning that very little waste is generated.
This is its most significant feature, leading to various advantages.
The only part that requires demolition and waste disposal is the ridge cap, making it more cost-effective compared to complete roof replacement.
In 2004, regulations regarding the concentration of asbestos in raw materials were changed (for details, please refer to the Ministry of Health, Labour and Welfare’s website).
Building materials used in structures constructed before 2004 may contain asbestos. Asbestos-containing materials are difficult to demolish due to their high environmental impact, and the costs for demolition and waste disposal are also high. The overlay method, which generates almost no waste, is ideal for such roofs.
Some may wonder, “Is it safe to live in a building that uses asbestos-containing materials?” but rest assured. As long as there is no destruction or crushing, it will not disperse into the air.
If you are unsure about the type of roof on your home, please feel free to consult us.
Additionally, we can complete the work in a shorter time frame than painting or re-roofing. A shorter construction period means lower labor costs, which in turn makes the expenses more affordable.
This also reduces the psychological anxiety of having to live in an unusual environment.
When scaffolding is set up, there may be inconveniences such as difficulty entering and exiting or being unable to open windows. Being able to return to your normal life in a short period is a significant advantage.
Our company specializes in roofing work, and the roof overlay (cover method) is the most frequently performed service we offer. We are very grateful that we have been able to continuously carry out roof overlay (cover method) projects without interruption.
If you have any concerns regarding your roof, rain gutters, or exterior walls, please consult Kakeru Koumuten Co., Ltd.!
We handle everything from temporary scaffolding work to roofing and exterior painting entirely in-house. We are confident that we excel in terms of cost, quality, and efficiency compared to other companies in exterior work!
We welcome competitive estimates with confidence!
We are committed to taking your requests seriously so that you will think, “I’m glad I chose you!”
We look forward to your inquiries. Thank you very much.
・Tsurumi-ku, Yokohama | We performed roof renovations and leak prevention using Super Galtect!
・Tsurumi-ku, Yokohama | Roof Cover | We conducted a roof overlay (cover method) using Super Galtect!
・Tsurumi-ku, Yokohama | Roof Cover | We conducted a roof overlay (cover method) with Diplomat Star!
・DIY Painting Plan! A must-see for those who want to try painting their roof and exterior walls themselves! We will only set up the scaffolding!
・What is the cost range for roof renovations? Types of construction and how to choose a contractor, etc.
・Latest! Grants, subsidies, and reduction systems available for renovations!
・How much does it cost for roof work? We introduce the cost range!
・What is the cost range for rain gutter repairs and cleaning? Tips on timing, fire insurance, and choosing a contractor!
・Renovation Store in Kanagawa Prefecture, Yokohama | What is Roof Overlay (Roof Cover Method)?
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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!
