BEFORE


AFTER


Komae City, Tokyo | Construction Data

 Approximately 2 weeks  About 1 week Completion Month  April 2025

Roof Overlay Construction Procedure

1. Removal of Existing Ridge and Snow Stops

First, we will dismantle unnecessary parts (ridge cap, wood batten, snow stops) for the overlay method! 

The durability of wooden battens is about 10 to 15 years. Once the durability period is exceeded, corrosion and discoloration occur, leading to the detachment and scattering of the ridge cap.

2. Laying Roofing (Waterproof Sheet)

Next, we will lay the waterproof sheet! The roofing used is Tajima Roofing / Tadi Self Cover.

Tadi Self Cover is a roofing sheet ideal for the overlay method of fragile slate and non-asbestos roofing materials. It serves as a secondary waterproofing layer, and as long as the roofing is solid, it basically won’t leak! 

We will firmly attach this to prevent it from being blown away by the wind. Since there are various durability periods and characteristics for roofing sheets, it is important to choose a roofing sheet that matches the durability of the new roofing material and the roof slope!

3.Accessory Processing (Curly Patterns and Eaves)

Before the installation of the main roof, we will process and install accessories such as arabesque and keraba. We use SGL steel plate for the keraba and arabesque, which are genuine Galttect parts!

The metal fittings at the ridge will be our original integrated waste board ridge base. It has a durability of approximately 30 years and offers high wind resistance. [/chat]

4. Main Construction (Deetrading / Dees Roofing “Classic Tile”)

After processing the accessories, we will install the Deetrading / Dees Roofing “Classic Tile” main body up to the ridge. This time, since it will be a “same material accessory specification”, the ridge base will be made of galvalume steel plate!

The durability of the galvalume steel batten is approximately 30 to 35 years, making it highly durable. Unlike resin or cedar, it does not crack, so it is recommended!

Our original integrated waste board ridge base made of galvalume steel plate is highly durable, offers strong fixation, and has excellent wind resistance!

Even if rainwater enters from the ridge, it has a mechanism to discharge rainwater to the outside, providing high waterproofing performance!

It is perfect for the super Galttect ridge base!

5. Ridge Metal Processing & Sealing at Various Locations

Next, we will process and install the dedicated same-material ridge flashing and eaves from Deez Roofing. We will firmly apply sealing on the inside of the joints.

At the wall edge, we will process and install a component called rain gutter flashing.

We will use stainless steel screws with waterproof packing that are resistant to rust for fastening!

Unlike nails, screws with packing are less likely to pull out
and securely fasten the ridge flashing to the wood!

 

Although it is not visible after installation,
by attaching a face plate to the inside of the ridge flashing,
waterproofing is enhanced!
We will thoroughly protect the ridge, which is a critical point of the roof.

6. Cleaning

After the roofing work is completed, we will clean up any debris that has fallen onto the balcony or rain gutters. We will thoroughly remove nails and pieces of flashing, as they can lead to injuries.

Additionally, we will wipe off any footprints that may have appeared on the roof to keep it clean.

About Roofing Materials

The roofing material used is Dee Trading / Deez Roofing “Classic Tile.” Deez Roofing comes with a 30-year warranty on the base material, and we also provide a 10-year workmanship warranty!

It is made from zinc-aluminum steel, which has the same composition as rust-resistant galvalume steel.

Deez Roofing reduces the thermal conductivity to the steel plate layer due to the effect of the surface stone granules. It has a structure that makes it less likely to transfer heat to the attic compared to other roofing materials by ensuring a sufficient air layer between the roofing material and the roof substrate.

Additionally, the unevenness of the surface stone granules has the effect of dispersing raindrops, causing them to hit with a smaller size compared to a regular smooth surface. As a result, the high-frequency noise caused by the micro-vibrations of the steel plate when raindrops hit, which is the source of the “noisy sound” of steel roofs, can also be suppressed by the surface natural stone granule layer.

By adopting the “interlocking method” that integrates roofing materials, it not only has the performance to withstand winds of up to 60m/s but also excels in fire resistance and waterproofing.

Color Variations

■Charcoal

 

 

■Marrone

 

 

 

 

■Sherwood Green

 

 

 

 

You can choose from these 3 colors!
This time, we completed a cover project with Marrone, and it turned out very well!
The customer was very satisfied, and I was also very happy!
Thank you very much!

Roofing Material

Dee Trading
Deez Roofing “Classic Tile”

Manufacturer Warranty 30 years from the completion date (limited to natural stone grain finish steel plate materials)
Expected Durability Approximately 45 years
Color Used This Time


■Marrone

Please check out other roofing project results here!

If you are looking for exterior remodeling in Komae City, Tokyo, please contact Kakeru Koumuten Co., Ltd.

Our company handles many roofing and exterior painting projects in Komae City, Tokyo. We are happy to assist with partial roof repairs such as roof overlays, roof replacements, exterior painting, exterior cladding, and leak repairs, as well as other repairs!

In urgent cases such as leak repairs, we may also be able to provide emergency measures without scaffolding, so please consult with us!

I want it to last long with one renovation”, “I want to keep costs down as much as possible”, “I want to improve insulation because the indoors are hot, we will provide optimal solutions for your specific requests.

We carry out everything from temporary scaffolding construction to roofing and exterior painting completely in-house.
We are confident that our costs, quality, and organization for exterior work are unmatched compared to other companies!
We welcome competitive estimates as we are confident in our services!

List of Areas in Komae City, Tokyo

Izumi Honcho, Komae City / Inokata, Komae City / Iwato Minami, Komae City / Iwato Kita, Komae City / Komai Cho, Komae City / Naka Izumi, Komae City / Nishi Izumi, Komae City / Nishi Nogawa, Komae City / Higashi Izumi, Komae City / Higashi Nogawa, Komae City / Moto Izumi, Komae City

Long-Term Reliability

All the roofing materials we use come from reliable products that offer long-term warranties. For example, the Deez Roofing used this time comes with a manufacturer’s warranty of 30 years (limited to natural stone grain finish steel plate materials) from the completion date of the installation. We also provide a 10-year construction warranty, allowing you to use your renovation with peace of mind for a long time.

Deez Roofing is a lightweight roofing material that excels in durability and cost performance, but we also handle roofing materials with even higher durability and better insulation properties, so please feel free to consult us.

Summary

Estimates and inspections are, of course, free! If you have any concerns regarding roofs, rain gutters, exterior walls, or exteriors, please consult Kakeru Koumuten Co., Ltd.株式会社翔工務店 in Kanagawa Prefecture!

Kakeru Koumuten is a company strong in exterior renovations. From temporary scaffolding work to roofing and exterior wall painting workcompletely in-house construction! We are confident that in terms of “cost, quality, and good planning”, we do not fall behind compared to other companies!

We are confident in our exterior renovations, so we welcome competitive estimates! Our construction warranty and aftercare maintenance are also robust, and we have received praise for our appropriate proposals that match 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 look forward to your inquiries. Thank you very much.

Useful information about exterior renovations can be found here!

We welcome consultations via LINE as well◎

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神奈川で屋根・雨樋・外装の工事、修理なら
株式会社翔工務店へ

株式会社翔工務店は平均年齢20代後半の若い会社ですが、技術はどこにも負けていません。

いちばんの強みは、足場工事、屋根工事、塗装工事とすべて自社で行えること。一般には分業されるこの業界にあって、一式で頼めるので管理に手間がかからず、コストも抑えることが出来ます。何より、トラブルがあればすぐにかけつけます!

自信をもって、宣言できます。私たちは、神奈川で一番若くて親切なリフォーム屋です!