


Hello!
I am Yamanaka from 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 a roof renovation project in Kanagawa-ku, Yokohama.
The work involved a roof replacement (Super Galtect) project!
This time, we implemented leak prevention measures through the roof replacement work!
Thank you very much for choosing Kakeru Koumuten Co., Ltd. from among many contractors.
Roof Replacement Construction Procedure
1. Existing Roof Demolition
We will dismantle the existing roof.



2. Installing new sheathing
After dismantling the roof, we will process and install new sheathing to fit the dimensions.

3. Installing roofing (waterproof sheet)
The roofing used this time is modified asphalt. It is expected to have double the durability of standard asphalt roofing!


4. Fabricating flashings (decorative eaves, edge flashings, valley metal, waste boards)
We will fabricate and install decorative eaves, edge flashings, valley metal, and waste boards.
5. Main construction
After finishing the main roofing, we will install the ridge and wall plates. This time, we used cedar ridge boards, but there are also resin ridge boards that are resistant to corrosion.
6. Fabricating ridge flashings and wall rain diverter flashings
We will process and install the ridge cap and ventilation ridge. For the wall edge, we will process and install a component called rain gutter flashing. We will also ensure that the sealing is done properly.


7. Cleaning


We will remove footprints and any debris that may have fallen around the house or inside the rain gutters, and we will do a thorough cleaning.
We strive to leave the site cleaner than it was before the work began!
The construction is now complete!
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 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 experience.
Additionally, it has soundproofing properties, reducing the sound of rain.
Being lighter than other roofing materials, it also minimizes the sway during earthquakes, making it a good earthquake countermeasure.
You can choose from five colors: Shade Black, Shade Brown, Shade Blue, Shade Moss Green, and Shade Charcoal.
It excels in finish, durability, insulation, soundproofing, and wind resistance, and among our construction achievements, the Super Galtect from Aijii Industrial is the most popular and highly regarded!
This time, we completed a roof replacement project using Shade Black, and the result is excellent!
The colonial roofing we removed this time does not contain asbestos!
If asbestos is present, the disposal cost can be significantly higher.
Thank you very much for your request this time!!
For roof renovations in Kanagawa-ku, Yokohama, trust Kakeru Koumuten!
Our company is based in Yokohama, so we have extensive experience in roof renovations in Kanagawa-ku, Yokohama.
We are happy to handle everything from roof overlay work, roof replacement, to partial roof repairs such as leak repairs.
“I just want to know the estimate for a roof renovation” or “I want to know about roofing materials” If you have any questions or concerns, please feel free to contact us!
Community-Focused Services
We are an exterior remodeling company based 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 long 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 roofing materials we use come from reliable products that offer 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, allowing you to 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
We have a wealth of experience in roof renovations in Kanagawa-ku.
We are happy to assist with partial roof repairs, including roof overlay work, roof replacement work, and leak repairs.
Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exterior structures, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!
Kakeru Koumuten is a remodeling company strong in exterior renovations, and we carry out complete in-house construction from temporary scaffolding work to roofing and exterior wall painting.
We are confident that in terms of “cost, quality, and organization”, we do not fall behind compared to other companies!
We are confident in our exterior renovations, so we welcome competitive estimates!
With robust construction warranties and aftercare maintenance, we have received positive feedback for our appropriate proposals that align with 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 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 | Roof Overlay | We performed a roof overlay using Super Galtect!
・Aoba-ku, Yokohama | We conducted exterior wall painting using premium silicone!
・Aoba-ku, Yokohama | Kakeru Koumuten | Roof inspection using a drone!
・Painting DIY Plan! A must-see for those who want to try DIY roof and exterior wall painting! We will only set up the scaffolding!
・What is the cost range for roof remodeling? Types of construction and how to choose a contractor.
・Latest! Grants and subsidies available for renovations, and reduction systems!
・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 Yokohama, Kanagawa | What is roof layering (roof overlay method)?
LINE consultations 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!


