トヨコー List of Products and Services

The "SOSEI Method" is a unique technique developed by Toyoko that allows for waterproofing, reinforcement, and insulation to be performed in a single application, making it suitable for the renovation of slate roofs. It involves spraying three layers of special resin to seamlessly integrate the surface. Additionally, we conduct a site survey when preparing estimates, and if requested, we can deploy a drone. 【Approved by the Aviation Bureau!】 Toyoko has received permission and approval from the Aviation Bureau, allowing flights across "all of Japan." 【Flight restriction areas due to population density】 Flights are possible by registering the flight plan with the "Drone Information Infrastructure System" each time. Toyoko registers and implements flight plans as needed, ensuring safe flights. <Advantages of using drones for roof inspections> ■ No worries about stepping on slate roofs, ensuring safety ■ No risk of high-altitude falls ■ Immediate confirmation of roof conditions ■ Roof inspections can be completed in a short time <Our company's drones> ■ Flight permission and approval from the Aviation Bureau ■ Manufactured by "DJI," the world's largest company with a 70% global market share ■ Capable of capturing high-quality images with 12 million pixels and 4K video ■ Equipped with omnidirectional obstacle detection sensors *You can view the materials from "PDF Download." Please feel free to contact us.

• Earthquake-resistant construction method
• Heat insulation and heat shielding methods

Toyoko Co., Ltd. will carry out total coordination construction of roofs and walls in collaboration with SOSEI and PbAt (Public Art). Since the roof and walls are constructed simultaneously, the work is done in one go, and scaffolding is set up only once. With a comprehensive contracting system, we ensure thorough support from design to aftercare. We enhance the functionality of the building and extend its lifespan while contributing to creating an environment that boosts employee motivation and beautifies the local landscape. 【Features】 ■ Construction is done in one go for both the roof and walls, with scaffolding set up only once. ■ A sophisticated exterior is achieved through color planning and design by a specialized design company. ■ We provide comprehensive support from design to aftercare. *From those who inquire and download the catalog, we will hold a lottery to give away original DEPTH DESIGN coasters! 【Gift Period】From March 29, 2021 (Monday) to April 25, 2021 (Sunday). *For more details, please refer to the PDF document or feel free to contact us.

• Roof and gutter construction
• Renovation Design

The "SOSEI Method" is a unique construction method by Toyoko that allows for waterproofing, reinforcement, and insulation to be performed in a single application, making it suitable for the renovation of slate roofs on factories and similar buildings. The application is performed from the roof, using a rapid-curing resin that ensures safety and enables large-scale work to be completed in a short period without halting operations. Additionally, the resin layer, which is 10mm thick, seamlessly integrates the surface. It can also seal joints (the overlaps of the slate) and hook bolts, preventing rain and wind from entering, thus helping to prevent leaks and detachment. With a roof load of 2.3 to 2.5 kg/m2, it is lighter compared to steel plate covering methods, which reduces the burden on the building structure and can lower reinforcement costs during seismic retrofitting. 【Features】 ■ Excellent insulation properties that suppress attic temperature rises even on extremely hot days (can reduce by over 10°C) ■ Proven track record of no roof damage during Typhoon No. 24 in 2018 and Typhoon No. 19 in 2019 ■ Contributes to reducing the risk of roof material detachment into the building ■ Reliable leak compensation for up to 10 years (for slate roofs) *You can view documents containing test data from the "PDF Download." Please feel free to contact us with any inquiries.

• Coating film waterproofing material/permeable waterproofing material
• Waterproofing work
• Roof and gutter construction

The "SOSEI Method" is a unique method developed by Toyoko that allows for waterproofing, reinforcement, and insulation to be performed in a single application, making it suitable for the renovation of slate roofs. By spraying three layers of special resin to seamlessly integrate the surface, it prevents gaps and cracks by blocking drafts from entering the slate joints and edges. Additionally, with a roof load of 2.3 to 2.5 kg/m2, it is lighter compared to steel plate covering methods, which reduces the burden on the building structure and lowers reinforcement costs during seismic work. 【Features】 ■ Integrates the overlaps of slate, hook bolts, and ventilation joints ■ Contributes to reducing the risk of roof and ceiling materials falling inside the building ■ Improves insulation, helping to suppress the rise in attic room temperature even on extremely hot days ■ Proven track record of 1 million m2 nationwide, including major manufacturers ■ Reliable leak compensation for up to 10 years (for slate roofs) *You can view documents that include test data by downloading the PDF. Please feel free to contact us with any inquiries.

• Earthquake-resistant construction method
• Heat insulation and heat shielding methods

【Overview of Renovation Case】 Project Name: Renovation of Slate Roof at Warehouse in Certain Location Location: Izumi-Otsu City, Osaka Prefecture Construction Period: April 2019 Area: Two Gable Roofs (Large Wave Slate) Construction Area: 1,856m2 【Background of Construction Method Adoption】 Due to the wind force of Typhoon No. 21 that struck in 2018, the large wave slate on the warehouse roof was cracked and scattered. The client, seeking early operation of the manufacturing line, considered repair technology options and concluded that: - Roof damage due to typhoons was occurring frequently in various locations, causing delays in responses from repair contractors. - Although the adoption of a steel plate cover method was considered, it would significantly increase the load burden on the structural framework, and there was a risk of the roof being lifted by strong winds if another typhoon struck. → *For further details, please download the PDF. Source: Shinkisha Co., Ltd. "Waterproofing Journal"

• Heat insulation and heat shielding methods
• Roof and gutter construction
• Renovation and repair methods

【Overview of Renovation Case】 Project Name: Renovation of Slate Roof at a Certain Factory Location: Kuki City, Saitama Prefecture Construction Period: September 2019 Area: Gable Roof (Large Wave Slate) Construction Area: 770m2 【Background of Construction Method Adoption】 This property had a damaged skylight area due to aging, which was causing water leaks. We considered repairs that would not interfere with the operation of the manufacturing line placed inside the factory; however, since repairs to the skylight area needed to be directly applied to the slate substrate, the construction company was concerned about the risk of puncture accidents, and the repairs did not progress smoothly. Therefore, we communicated to the client that there were numerous successful cases of similar construction methods and that we had established construction know-how... → *For further details, please download the PDF. Source: Shinjukusha Co., Ltd. "Waterproofing Journal"

• Heat insulation and heat shielding methods
• Roof and gutter construction
• Renovation and repair methods

The "SOSEI Method" is a spray cover technique that applies a three-layer special resin to aging slate and metal roofs, creating various effects such as waterproofing, insulation, and reinforcement. Here, we introduce the eight characteristics supported by verification tests! ■ Durability (Accelerated Weather Resistance Test) ■ Adhesion (Adhesion Confirmation Test) ■ Compressive Strength (Bending Strength Test) ■ Insulation (Slate Roof Insulation Measurement) ■ Safety (Punching Test) ■ Insulation (Roof Fire Resistance Test) ■ Impact Resistance (Ball Drop Test) ■ Waterproofing (Completely Seamless Waterproofing) *For more details, please download the PDF or feel free to contact us.

• Others/Roofing materials (shingles, cement, steel sheets, aluminum)
• Renovation and repair methods
• Roof and gutter construction

The "SOSEI Method" is a spray cover technique that applies a three-layer special resin to aging slate and metal roofs, creating various effects such as waterproofing, insulation, and reinforcement. <Space-saving integrated system> The SOSEI method loads the necessary equipment onto a system vehicle (two 2-ton trucks) and sets it up near the construction site, allowing it to accommodate large factory roofs with a maximum delivery hose length of 120 meters. <Three-layer spraying procedure> 1. SOSEI foam spray (adhesion and insulation layer) 2. SOSEI coat spray (reinforcement and waterproofing layer) 3. SOSEI top spray (protection layer) Steps 1 and 2 are instant curing types, allowing for immediate coating of the next process after spraying, enabling approximately 200 square meters of work per day! *For more details, please download the PDF or feel free to contact us.

• Renovation and repair methods
• Roof and gutter construction
• Heat insulation and heat shielding methods

The revival method is a spray cover technique that applies three layers of special resin to aging slate or metal roofs, creating various effects such as waterproofing, insulation, and reinforcement. 【Safety and Environmental Performance of the Revival Method】 ■ Waterproofing ■ Fire resistance (flame-resistant specifications) ■ Durability ■ Adhesion ■ Impact resistance ■ Insulation *For more details, please download the PDF or feel free to contact us.

• Renovation and repair methods
• Roof and gutter construction
• Heat insulation and heat shielding methods

Are you struggling with measures against roof deterioration? 〇 I want to extend the life of the facility without incurring large costs... 〇 I want to complete renovation work quickly without stopping factory operations... and more. The revival method is a spray cover technique that applies a three-layer special resin to aging slate or metal roofs, creating various effects such as waterproofing, insulation, and reinforcement. 【Benefits】 1. Short-term completion of work without stopping operations 2. Low roof load that does not compromise seismic resistance 3. Reduction in utility costs due to improved insulation 4. No concerns about asbestos dispersion 5. Peace of mind with leak compensation for up to 10 years *For more details, please download the PDF or feel free to contact us.

• Renovation and repair methods
• Roof and gutter construction
• Heat insulation and heat shielding methods

The SOSEI method allows for both insulation and waterproofing effects to be achieved in a single application by spraying polyurethane foam and waterproof polyurethane onto corrugated and slate roofs. ■□■Features■□■ ■The polyurethane foam layer adheres seamlessly to the roof, making it less likely to peel compared to other insulation materials and providing excellent insulation performance. ■Due to its superior compressive strength, it reinforces existing roofing materials. ■With minimal mist dispersion and a tack-free time of 3 to 10 seconds, it cures quickly, resulting in less mess and reduced temporary costs for splash prevention. ■It has a condensation prevention effect, allowing for flexible adjustment of the thickness of the polyurethane foam layer based on indoor temperature, indoor humidity, and outdoor temperature conditions. ■With an average productivity of 500/m2 per day, it excels in workability, significantly shortening construction time and achieving savings on labor and general management costs. ■It forms a robust coating, has excellent self-adhesiveness, and results in a seamless finish, thereby enhancing durability. ■For more functions and details, please download the catalog or contact us.

• Heat insulation and heat shielding methods
• Renovation and repair methods
• Coating film waterproofing material/permeable waterproofing material