Construction example

Asao-ku, Kawasaki City | We performed solar panel removal and roof overlay work!

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 Asao-ku, Kawasaki City.
The work involved is the roof overlay (cover method) using Diplomat Star and solar panel removal and reinstallation!

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

Asao-ku, Kawasaki City – Construction Data

Construction Location  Aso-ku, Kawasaki Construction Details  Solar panel removal and reinstallation
 Roof overlay (cover method)
 Temporary scaffolding installation Inquiry Details The customer contacted us because they are concerned about the deterioration of their roof and want to use the cover method, but since there are solar panels installed, they are looking for a construction company that can also handle the removal and reinstallation of the solar panels! Existing Roofing Material/New Roofing Material  Existing roofing material: Slate
 New roofing material for roof overlay: Deez Roofing/Diplomat Star Price  1,000,000 – 1,500,000 Construction Period  Approximately 10 days Completion Month January 2024

Roof Overlay Construction Procedure

1. Temporary Removal of Solar Panels

We will temporarily dismantle the solar panels and their mounting brackets. The removed solar panels will be carefully stored in our warehouse for reuse. The existing mounting brackets are for slate and require direct holes to be made in the roof, so they will be disposed of. The holes left by the brackets will be sealed and repaired with caulking. We will also dismantle any unnecessary existing ridge flashing and snow guards!

2. Installing Roofing (Waterproof Sheet)

Next, we will apply the waterproof sheet! The roofing used is Jouyu Pulp Industry/Sunlight G!
This material is modified asphalt roofing, which is said to have double the durability of regular asphalt roofing.
If the roofing is properly installed as a primary waterproofing layer, there will be no leaks! We will secure it with steel plate chips to prevent it from blowing away.

3. Fabrication of Accessories (Kera and Karakusa)


Before the main roof construction, we will fabricate and install accessories such as kera and karakusa!
The materials used for these accessories are galvalume steel.

4. Main Construction (Deez Roofing/Diplomat Star)

After processing the fittings, we will install the Diplomat Star body up to the ridge!
Once we have installed it up to the ridge, we will place the necessary materials to secure the ridge board known as the kanban. There are various types of kanban including cedar, resin, and Galvalume copper plates, and this time we used a resin type!
The resin type is expected to have 2 to 3 times the durability compared to the cedar type!

5. Ridge Cap and Sealing at Various Locations

After installing the kanban, we will process and attach the ridge cap. We will firmly apply sealing on the inside of the joints.
We will process and install the rain guard metal at the wall edge! We will waterproof the gap between the rain guard metal and the exterior wall with sealing after applying primer!
We will use stainless steel nails and screws that are resistant to rust for fixing!

6. Installation of Solar Panel Mounting Brackets


We will install the mounting brackets for the solar panels that we have stored for reuse! The new brackets are made of aluminum from Niigata Seihan! Unlike the type that drills holes in slate roofs, these are catch-type brackets that grip and secure the Diplomat Star. Since the catch-type brackets do not require drilling, they offer high waterproofing!

7. Installation of Solar Panels

We will return the removed solar panels to their original position to complete the installation! Finally, we will also check to ensure they are generating power properly.

8. Cleaning


We will clean up the debris that has fallen on the balcony and rain gutters. We will thoroughly remove items like nails and metal scraps that could lead to injuries. The balcony will be restored to its original state upon completion of the work!

About Roofing Materials

The roofing material used is the Diplomat Star from Deez Roofing.
Deez Roofing comes with a 30-year warranty on the base material.
Our company also provides a 10-year construction warranty!

It uses zinc-aluminum steel, which has the same composition as galvanized steel, known for its rust resistance.

Deez Roofing reduces heat conduction to the steel layer due to the effect of the surface stone granules. This structure makes it more difficult for heat to transfer to the attic compared to other roofing materials, as it secures a sufficient air layer between the roofing material and the roof substrate.
Additionally, the unevenness of the surface stone granules helps to disperse raindrops, resulting in smaller impacts compared to a regular smooth surface. Consequently, the high-frequency noise caused by the micro-vibrations of the steel plate when raindrops hit, which is often referred to as the “loud noise” of steel roofs, can be suppressed by the natural stone granule layer on the surface.This is possible.

By adopting the “interlocking method” that integrates the roofing materials, it boasts performance that can withstand winds of up to 60m/s, as well as excellent fire resistance and waterproofing.

Colors

■ Onyx

■ Cafe

■ Terracotta

■ Evergreen

You can choose from these 4 colors!

This time, the roof overlay work with Evergreen 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 examples here!

Roof Material

Dee’s Roofing / Diplomat Star

Manufacturer Warranty 30-Year Warranty
Expected Durability About 45 Years
Color Used This Time

Evergreen

For Roof Renovations in Asao-ku, Kawasaki, Trust Kakeru Koumuten!

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

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 performance because the indoors are hot

We will provide the best solutions for your specific requests.

Conclusion

The above is our record of roof renovation (roof overlay) and solar panel installation and removal in Aso-ku, Kawasaki.
We handled everything from solar panel installation and removal to roof overlay work with our completely in-house construction!
Since our company can manage everything from scaffolding assembly to solar panel installation and roof work in-house, we can provide high-quality construction at a much lower cost than relying on separate specialized companies.

For roof renovations with solar panels installed, leave it to us!

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 conduct complete in-house construction from temporary scaffolding work to roof work and exterior wall painting.
Regarding exterior renovation work, we are confident that we will not be outdone by other companies in terms of “cost, quality, and efficiency”!

We are confident in our exterior renovations, so we welcome competitive estimates!
We also 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 feel, “I’m glad I asked!” Therefore, we take every request seriously.

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!

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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!