[Suginami-ku, Tokyo] | Large-scale Renovation | Performed exterior wall painting and rooftop waterproofing work for an office building!

 

Construction Data for Large-Scale Repairs in Suginami-ku, Tokyo

Construction Location

Aoba-ku, Tokyo

Construction Details

Temporary scaffolding installation　 Exterior painting work　Roof waterproofing work

Existing Substrate / Materials Used

Existing exterior wall material: Mortar 　Existing waterproofing: Urethane waterproofing [Exterior Wall Painting Work] Primer: SK Kaken / Premium Filler Intermediate and Top Coat: SK Kaken / Premium Silicon [Accessory Part Painting] Rock Paint / Yumelock [Roof Waterproofing Work] Waterproofing: AGC Polymer Building Materials / Saracene A (High Strength Urethane)

Process Leading to Construction

We received the following consultation from a customer in Suginami-ku, Tokyo. “I am concerned about the deterioration of the exterior wall and waterproofing of my building, so I would like to have it checked and get an estimate.”

Price Range

3.5 million to 4 million

Construction Period

About 1.5 months

Completion Month

February 2026

 

Exterior Wall Painting Work Procedure

1. High Pressure Washing

 

2. Substrate Adjustment

3. Protection of Areas

4. Primer Application

5. Middle Coat

6. Top Coat

7. Painting of Auxiliary Parts (Rain Gutter, Handrails)

Rain Gutter

 

Handrails

Roof Top Urethane Waterproofing Work (Ventilation Buffer Method) Construction Steps

1. Removal of Existing Waterproofing and Substrate Adjustment

After removing the existing waterproofing, we will perform substrate adjustment. [/chat]

2. Application of Primer

We will apply the primer! It acts as an adhesive that enhances the adhesion between the substrate and the waterproofing material. [/chat]

3. Installation of Ventilation Sheet and Joint Tape

After applying the primer, we will install the ventilation sheet across the entire flat area to prevent wrinkles and air pockets. Joint tape will be applied seamlessly at the joints. By installing the ventilation sheet, we allow air rising from the building to escape outside, preventing the most common waterproofing issue: blistering. [/chat]

4. Installation of Ventilation Pipe

This is a pipe for exhausting water vapor that occurs between the waterproof layer and the substrate on the roof.
The ventilation pipe will be securely fixed to prevent movement. The number of installations will vary depending on the size.[/chat]

5. Application of Urethane (First Layer)

6. Urethane Application (Second Layer)

7. Top Coat Application

What is the Ventilation Buffer Method?

The ventilation buffer method is the optimal technique for waterproofing on rooftops and balconies with existing concrete substrates, aimed at reducing the phenomenon of moisture forming and causing swelling inside the applied waterproof material.This method is also suitable for rooftops and balconies where leaks have already occurred!
When waterproofing is performed using the adhesion method instead of the ventilation buffer method on concrete substrates, the steam emitted from the concrete can cause swelling in the waterproof layer from the inside.

To prevent this swelling, the ventilation buffer method utilizes essential ventilation performance ventilation buffer sheets and decompression tubes, allowing water vapor to escape to the outside, enabling stable construction without swelling!

Please check out other painting project results here!

For exterior wall painting in Suginami-ku, Tokyo, trust Kakeru Koumuten!

Our company has extensive experience in exterior wall painting and roof overlay renovations in Suginami-ku, Tokyo.
We are happy to assist with partial repairs such as exterior wall painting, roofing work, waterproofing work, and other construction projects.
If you have any questions or concerns such as “I just want to know the estimate” or “I want to know about paints suitable for my home,” please feel free to contact us!

 

Summary

Above are the project results for exterior wall painting and rooftop waterproofing work in Suginami-ku, Tokyo!

Kakeru Koumuten is also happy to assist with emergency repairs and partial repairs.

Our customers were very satisfied after checking the completed work!
After construction, we provide construction photos and a warranty certificate, marking the completion of the project!

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

Kakeru Koumuten Co., Ltd. has become a strong remodeling company specializing in exterior renovations, and we carry out everything from temporary scaffolding work to roof work and exterior painting completely in-house.
When it comes to 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 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!

“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.

Helpful information about exterior renovations can be found here!

 

We welcome consultations via LINE as well◎

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！

 

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