[Kawasaki City Saiwai Ward] | Roof Renovation | We Performed Roof Overlay (Cover Method) with Dan Netsu Top!

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 a roof renovation in Saiwai-ku, Kawasaki City.
The work this time involves the roof overlay (cover method) using Dan Netsu Top!

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

Roof Renovation in Saiwai-ku, Kawasaki City – Construction Data

Roof Overlay Construction Procedure

1. Demolition of Existing Ridge and Snow Stops

We will dismantle unnecessary parts (ridge cap) for the roof overlay (cover 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 and scattering of the ridge cap.

2. Roofing Installation (Waterproof Sheet)

The roofing used is Tajima Roofing/New Liner Roofing
!
It boasts the highest quality, unmatched in both waterproofing and durability. By sandwiching a modified asphalt layer between non-woven fabric and base paper, it fully demonstrates the inherent performance of modified asphalt.
The expected durability is about 30 years!
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.
When selecting roofing sheets, choose those with durability as close as possible to new roofing materials! New Liner Roofing has a durability that is relatively close to Danetsu Top, so we recommend using New Liner Roofing when performing roofing work with Danetsu Top!

We will securely attach it to prevent it from blowing away!

3. Custom Fabrication (Curlicue, Eaves, Rain Stopper)

Before the main roof construction, we will process and install custom parts such as eaves, curlicues, and valley metal!
The materials used for the custom parts are galvalume steel sheets!

4. Main Construction (Sekino Kousan/Danetsu Top)

After custom fabrication, we will install the Danetsu Top roofing all the way to the ridge!

Once the roof is completed up to the ridge, we will install the necessary materials to secure the ridge board known as “kanban.” We offer three types of kanban: cedar, resin, and Galvalume steel, and this time we used the Galvalume steel version!
The Galvalume steel version is expected to have three times the durability compared to cedar! Unlike resin and cedar, it does not crack, providing peace of mind!

Our original integrated waste board type Galvalume steel ridge base is,
highly durable, with strong fixation and excellent wind resistance!
Even if rainwater enters from the ridge, it has a mechanism to discharge rainwater to the outside, demonstrating
high waterproofing performance!

5. Processing of Ridge Metal and Sealing at Various Locations

Next, we will process and install the ridge metal. We will firmly apply sealing on the inside of the joints. At the wall edge, we will process and install a component called a rain guard metal.
The screws used for fixation are made of stainless steel, which is resistant to rust!

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 the Roofing Material

The roofing material used is Sekino Kousan’s Dan Netsu Top.

Since Dan Netsu Top is made of Galvalume steel, it has excellent durability, and it comes with a manufacturer’s coating warranty! 15 years for the coating and 25 years for perforation warranty!

While it looks very similar to Hirambi, Dan Netsu Top comes with polyethylene foam insulation as a standard feature, not as an option!
Additionally, we provide a 10-year construction warranty!

Features of Dan Netsu Top 8-1

Lightweight and earthquake-resistant, this roofing material boasts overwhelming lightness and sturdy fastening, making it strong against earthquakes. Additionally, it is easy to install, which improves work efficiency.

Moreover, it features heat-insulating GL steel plates with insulation effects. With high corrosion-resistant GL steel plates and insulation materials, it excels in thermal insulation, soundproofing, and strength.

Color

*Colors may vary depending on the type of product.

This time, the cover work was done in silver, and it 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!

Summary

Roofing Material	Sekino Kousan/Dannetsutop
Manufacturer Warranty	15 years for the coating; 25 years for perforation
Expected Durability	Approximately 15 to 25 years
Color Used This Time	Silver

Leave Your Roof Renovation in Kawasaki City, Saiwai Ward to Kakeru Koumuten!

Our company has extensive experience in roof renovations in Saiwai Ward, Kawasaki City.
We are happy to assist with everything from roof overlay work, roof replacement, to partial roof repairs such as leak fixes.
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!

Community-Focused Service

As an exterior renovation company based in Aoba-ku, Yokohama, we have handled many roof renovations in nearby Saiwai Ward, deeply understanding the needs of local customers. Whether you want to “make it last long with one renovation,” “keep costs down,” or “improve insulation 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 Danetsu Top we used this time comes with a 15-year coating warranty and a 25-year hole 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.

Additionally, we can visit for aftercare maintenance every year!
We send out aftercare maintenance DM every year!

Conclusion

Estimates and inspections are, of course, free! If you have any issues with your roof, rain gutters, exterior walls, or exterior structures, please consult Kakeru Koumuten Co., Ltd. in Aoba-ku, Yokohama!

Kakeru Koumuten is a renovation company strong in exterior renovations, and we carry out complete in-house construction from temporary scaffolding work to roofing and exterior painting.
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!
With comprehensive construction warranties and aftercare maintenance, we have received positive feedback for our appropriate proposals that match the 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 roof overlay methods, so please take a look if you are interested!

We look forward to your inquiries. Thank you very much.

Useful information about exterior renovations can be found here!

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