トーコー List of Products and Services

This is the industry's first PV cable entry component. The "entry unit" allows cables to enter from the ridge into the attic, preventing cables from protruding on the wall side, thus maintaining aesthetic appeal while protecting the house from rainwater with technology developed over approximately 20 years of ridge ventilation creation. It can be used in houses with flat ridges, gable roofs, or hip roofs. It is compatible with slate roofing materials and accommodates a wide range of slopes (2.5 to 8 inches; single materials from 1.5 inches). With the addition of slate compatibility in this series, it is suitable for ridge ventilation compatible with various roof types, including mono-pitched, gable, and hip metal roofs, slate tiles, and single materials, making it versatile for a wide variety of roofs. Please use it together with ridge ventilation. 【Features of the Entry Unit】 1. Reduces construction management hassle! 2. An item that considers aesthetics! 3. Compatible with various roof materials and shapes! 4. Easy wiring design! 5. Eliminates concerns about leaks! *For more details, please check the product introduction page on our website.

• Ventilation openings

The "Katamunare i-ROOF2," which has been highly praised and loved for many years, was released on May 22 as a successor to the "Katamunare i-ROOF" (hereinafter referred to as the old product). This time, additional new specifications have been added to the "Katamunare i-ROOF2." After its release, we received numerous requests from customers to also include the wall-side droop width of 150 mm, which was familiar with the old product, in the "Katamunare i-ROOF2." As a result, we have decided to add the "Katamunare i-ROOF2 150" (Ichigou Maru), which has been redesigned with this specification. With the addition of this product, the applications for the sloped roof shape will further expand, enhancing customer convenience. We encourage you to make use of the newly added "Katamunare i-ROOF2 150" at various sites.

• Ventilation openings

Our company offers the 'i-ROOF2 Series,' which allows for ventilation of metal roofs. The "Side Wing Ventilation Structure" utilizes the power of the wind to create negative pressure with the side wings, similar to how an airplane wing generates negative pressure from airflow. This creates a flow that expels air from the attic to the outdoors, preventing rainwater intrusion. Additionally, the Side Wing Ventilation Structure not only provides waterproofing performance but also enhances attic ventilation performance through the wing effect that utilizes wind power. 【Features】 ■ Passage: Wind flows through the ridge ventilation ■ Generation: Negative pressure is generated in the groove due to the structure's effect ■ Promotion: Ventilation is promoted by the effect of negative pressure *For more details, please refer to the PDF materials or feel free to contact us.

• Metal roof

The "Rain Stop i-ROOF 2" is the industry's first dedicated rain stop ventilation for metal roofs, designed to withstand severe storms accompanied by strong winds, such as large typhoons and sudden heavy rains, with a high level of waterproof performance. 【Side Wing Ventilation Structure】 The most significant feature of this renewal is the "Side Wing Ventilation Structure." This structure, adopted in all products of the series, enhances ventilation performance by creating a flow that generates negative pressure from the airflow over the wings, allowing air to be expelled from the attic to the outside. Additionally, the Side Wing Ventilation Structure not only improves ventilation performance but also prevents rainwater from entering the attic by utilizing the wing effect of wind. 【Dual Ventilation Structure - Achieving 60% Increased Ventilation while Maintaining Reliable Waterproof Performance】 The "Dual Ventilation Structure" (patent pending) provides double waterproofing through upper and under ventilation, successfully balancing the trade-off relationship between waterproof performance and ventilation performance. ● For more details, please contact us or check our company website.

• Ventilation openings

The "Katanagare i-ROOF2" is the industry's first dedicated metal roof ridge ventilation system designed to withstand severe storms with strong winds, such as large typhoons and sudden heavy rain, featuring a high level of waterproof performance. The most significant feature of this renewal is the "Side Wing Ventilation Structure." This structure is adopted in all products of the series. Just as an airplane wing generates negative pressure through airflow, the side wings utilize wind power to create negative pressure, facilitating the flow of air from the attic to the outside and preventing rainwater intrusion. Additionally, the Side Wing Ventilation Structure not only enhances waterproof performance but also improves attic ventilation efficiency through the wing effect harnessing wind power. 【Spacer-In Flat Method - Achieving a Beautiful Finish on the Wall Side of the Single Slope -】 The "Spacer-In Flat Method," which has been well received in the Katanagare Soukai, is also adopted in the Katanagare i-ROOF2. This method, which uses "Wall Side Spacers," significantly enhances aesthetic appeal. The "Wall Side Spacers" provide support, suppressing the waviness on the wall side and resulting in a beautiful finish. Furthermore, by using "Wall Side Spacers," it eliminates the need for two site visits for temporary and final installation of the ridge ventilation, allowing for a one-stop installation process.

• Ventilation openings

The "i-ROOF2" is the industry's first dedicated ridge ventilation system for metal roofs, designed to withstand severe storms accompanied by strong winds, such as large typhoons and sudden heavy rains, with a high level of waterproof performance. The most notable feature of this renewal is the "Side Wing Ventilation Structure." This structure, adopted in all products of the series, enhances ventilation performance by creating a flow that generates negative pressure through the airflow over the wings of an airplane, allowing air to be expelled from the attic to the outside. Additionally, the Side Wing Ventilation Structure not only improves ventilation performance but also prevents rainwater from entering the attic by utilizing the wing effect created by the force of the wind. 【Improved Design Aesthetics by Making Ridge Ventilation Less Noticeable】 The old product had a step in the ridge ventilation area, making it prominent, but the Side Wing Ventilation Structure allows for the ridge ventilation area and the general ridge area to be installed at the same level without any steps. By making the ridge ventilation less noticeable, it results in a cleaner design. ● For more details, please contact us or check our company website.

• Ventilation openings

The "High Ventilation Swing" is a ventilation component for decorative slate and single roofs that accommodates gable and hip roof shapes. In recent years, due to the effects of global warming, such as the occurrence of large typhoons and sudden heavy rains, high performance is required for roofs in Japan. This product achieves a high level of two opposing performances: "high waterproof performance" that can withstand stormy weather and "high ventilation performance" that allows for ventilation even with short ridges like those of hip roofs. (Developed by our company using the "Side Wing Ventilation Structure" (patent pending)) 【Features】 - Waterproof performance that provides peace of mind even in stormy weather at the level of large typhoons → Passed extremely rigorous spray and wind tests with a rainfall rate of 240mm per hour and wind speed of 40m/s - Sufficient ventilation performance even with short ridges → Achieves an industry-leading effective opening area of 438cm² (1P) - Significantly improved workability for installation on roofs → Achieves more than three times the workability compared to our conventional products 【Side Wing Ventilation Structure】 - Utilizes wind power to create negative pressure with the side wings, creating a flow that expels air from the attic to the outside, preventing rainwater intrusion. - The wing effect utilizing wind power improves the ventilation performance of the attic. *For more details, please contact us or check the link below.

• Ventilation openings

"Swing" is a ventilation component for decorative slate and single roofs that corresponds to gable and hip roof shapes. In recent years, due to the effects of global warming, such as the occurrence of large typhoons and sudden heavy rains, high performance is required for roofs in Japan. This product features our developed "Side Wing Ventilation Structure" (patent pending), which ensures reliable waterproof performance even during the severe storms of large typhoons. 【Features】 〇 Reliable waterproof performance even in severe storms of typhoon level → Passed the water spray and wind test with a rainfall rate of 240 mm per hour and wind speed of 40 m/s 〇 Improved ventilation performance alongside waterproof performance → Achieves an effective opening area of 438 cm² (2P). [28% increase in ventilation performance compared to our conventional products] 〇 Enhanced design and convenience → After installation, it aligns with the dedicated ridge, resulting in a simple design where ridge ventilation is not prominent. The product design accommodates roof slopes, improving on-site convenience. 【What is the Side Wing Ventilation Structure?】 - Utilizes wind power to create negative pressure with the side wing, generating a flow that expels air from the attic to the outside, preventing rainwater intrusion. - The wing effect utilizing wind power enhances the ventilation performance of the attic. *For more details, please contact us or check the link below.

• Ventilation openings

This product is a ventilation unit suitable for roofs where ridge ventilation cannot be installed. In addition to waterproofing against wind and rain, we have newly developed a structure called "Double Ventilation Structure" that can demonstrate reliable waterproof performance even in cases of heavy rain falling in a short period, such as during a guerrilla downpour, and we have upgraded the waterproof performance of the "Roof Surface Ventilation Unit." *Patent pending. The all-in-one product design means fewer components and easy installation. **What is Double Ventilation Structure?** It features two ventilation components, "Upper Ventilation" and "Under Ventilation," each exhibiting a certain level of waterproof and ventilation performance. By combining these two components, it achieves a higher and more stable waterproof and ventilation performance. **Features** - Reliable waterproof performance even in heavy rain over a short period, such as during a guerrilla downpour. - Reliable waterproof performance even in typhoon-level storms, passing a spray and wind test with a rainfall rate of 240mm per hour and wind speed of 30m/s. - Industry-leading ventilation performance as an attic ventilation component that can be installed even on narrow roofs in urban areas. *For more details, please contact us or check the link below (official website).

• Ventilation openings

This is an interview article published in Shinken Housing in May 2022. As the thermal insulation of houses improves, national standards are also rising. This time, we have Mr. Eiji Kato from the Japan Housing Finance Agency (who is in charge of the specifications for wooden house construction) discussing the issues and countermeasures regarding attic condensation.

• Ventilation openings

This catalog features a wide range of products based on "ridge ventilation." We introduce numerous products, including the "Single Slope Dual Vent," which significantly improves design aesthetics with a new method that does not directly fix to the wall, the revolutionary air intake component "Air Fresh" that can be used at the eaves even with zero eaves, and the ridge ventilation specifically for roof painting renovations, "Pack Vent." This book is designed to assist in product selection. Please download and take a look. [Contents] ■ About the products ■ Featured products ■ Product list - Ridge ventilation - Roof accessories - Exterior wall accessories ■ Others *For more details, please refer to the PDF document or feel free to contact us.

• Ventilation and smoke exhaust equipment

In wooden houses, the ventilation and air circulation of the structure is considered important but problematic. Professor Hiroaki Saito of Ashikaga University, who is training on design methods for building envelopes that include energy conservation and durability, has provided a simple and easy-to-understand explanation of the basics of structural ventilation and air circulation, using practical examples over six sessions. <Content> Vol.1 The Necessity of Ventilation and Air Circulation Vol.2 Attic Ventilation Vol.3 Case Study 1 of Problems Due to Poor Ventilation Vol.4 Case Study 2 of Problems Due to Poor Ventilation Vol.5 The Necessity of Ventilation in Eaves Vol.6 Modern Living Environments and Ventilation

• Ventilation openings

"Katayanagare Soukai" is a new construction method that does not directly fix to the wall, resulting in a beautiful finish. It is a cost-effective ridge ventilation system that can be used with both metal and slate materials. Thanks to the newly developed patented structure "Large Water Stop Plate Slide Structure," it allows for the use of decorative slate and metal roofing materials, effectively reducing product inventory and preventing installation errors on site. Additionally, the "new construction method" that does not directly fix to the wall eliminates waviness during installation, resulting in an outstanding aesthetic finish. 【Features】 ■ Dramatically improved design with the new construction method ■ Usable not only with decorative slate but also with metal roofing materials ■ Expected increase in inventory efficiency for ridge ventilation ■ No waviness or sagging, with concealed sealing at joints for a clean finish ■ Improved waterproof performance, accommodating slopes from gentle to steep, and increased ventilation capacity ■ Effects such as reduced product inventory and prevention of installation errors on site *For more details, please contact us or check the link below (our company website).

• Ventilation and smoke exhaust equipment

"Air Fresh" is an air intake component that has been widely adopted in zero-eave houses as a "partner for ventilation roofs." It can also be used as an exhaust component for wall ventilation. Utilizing a heat-expanding material that foams due to the heat generated during a fire, this air intake component has a fireproof function that blocks the air intake pathway to prevent the spread of fire. By using an original heat-expanding material with a proprietary formulation that adjusts the foaming temperature and foaming ratio, it is possible to block the air intake pathway with the heat-expanding material during a fire. The flap has an S-shape, and by changing the center of gravity of the flap, its position after falling can be made consistent, allowing the air intake pathway to be blocked by the heat-expanding material. This S-shaped flap structure is our original technology currently under patent application. 【Features】 ■ Fireproof function that blocks the air intake pathway to prevent the spread of fire ■ Original heat-expanding material with a proprietary formulation that adjusts foaming temperature and ratio ■ Blocking of the air intake pathway with heat-expanding material ■ "S-shaped flap structure" that ensures a reliable and secure blockage ■ Confirmation of the blockage condition of the air intake pathway through electric furnace tests under the same conditions as non-combustibility tests for roofing materials at public testing institutions *For more details, please contact us or check the link below (our company website).

• Roof and gutter construction

The 'Zero Eaves Gable Side Vent' is an exterior wall ventilation component that can exhaust air from the gable side of a zero-eaves house. It has been developed as a dedicated component for gable side ventilation in the exterior wall ventilation method of zero-eaves houses. By focusing on just three functions—preventing rain from entering even during storms, exhausting moisture from within the exterior wall to prevent condensation, and maintaining a clean gable side design—we have achieved high cost performance. [Features] - Ultra-compact design compatible with a clean gable side design - Waterproof performance that ensures safety even in storms - Exhausts moisture from within the exterior wall to prevent condensation - High cost performance achieved by narrowing down the functions *For more details, please contact us or check the link below (our company website).

• Ventilation openings

The "S-type Ventilation Ridge" is the best-selling No. 1 standard type ventilation ridge (for gable and hip roofs). It achieves attic ventilation and water resistance with a simple design, and allows for easy installation using dedicated fixing screws. It has been renewed from a fire protection device installation type to a built-in type, enabling fire protection specifications without compromising the effective opening area. This long-selling product has been on the market since 1996, with cumulative sales exceeding 800,000 units, and more than 40,000 units are still released each year. 【Features】 - Achieves attic ventilation and water resistance with a simple design - Easy installation using dedicated fixing screws - Compatible with fire protection specifications *For more details, please contact us or check the link below (our company website).

• Ventilation openings

The "Tile Ventilation 960" is a product that allows for ventilation of the under-roof space using tiles. It achieves an effective opening area of 232 cm² per unit (Tile Ventilation 960L). For a typical-sized house, installing just 2 to 3 units can meet the required ventilation volume. Additionally, it can be applied to all ridge specifications by utilizing the space between the tiles and the underlayment, making it suitable for roof shapes that were traditionally difficult to install on, such as single-pitched roofs and staggered roofs. 【Features】 ■ Fire-resistant specifications available ■ Overwhelming effective opening area ■ Versatility not affected by the shape of the ridge tile ■ Reliable waterproofing that utilizes the rainwater drainage performance of the tiles ■ Excellent workability that allows for easy and secure opening and installation in the appropriate position *For more details, please contact us or check the link below (our company website).

• Ventilation openings

The "Entry Unit for i-ROOF / Single Slope Dual Ventilation" is a groundbreaking PV cable entry component that combines design, water resistance, and functionality. Since it enters from the ridge into the attic, cables do not emerge on the wall side, preserving the aesthetic appeal, and it protects the house from rainwater using technology developed over approximately 20 years of ridge ventilation creation. We have uniquely devised the shape and arrangement of the water-stopping material to achieve high water resistance. The cover also directs water droplets dripping from the ceiling outward, making it difficult for droplets to enter the entry section. 【Features】 ■ Enhances aesthetics by concealing cable lines from the exterior of the house ■ Neatly stores TV antenna cables and others ■ High waterproof performance ■ Additional cable entry possible ■ Easy installation with one-motion attachment (for single slope dual ventilation) *For more details, please contact us or check the link below (our company website).

• others

"KanKEY eco" is a ventilation component for balconies and parapets that features a newly developed waterproof structure, the "V-shaped waterproof barrier (patent pending)," providing excellent waterproofing performance. By using a plug-in method for corner pieces, end caps, and other components, installation has become easier and faster. With a compact design that reduces the width of the visible part, the product is designed to be completely hidden within the cap, preserving the aesthetic. 【Features】 ■ Outstanding cost performance ■ Compact design that hides within the cap ■ Easy installation with plug-in secondary components ■ Simplified internal structure *For more details, please contact us or check the link below (our company website).

• Balcony/Sunroom Unit

"KanKEY C" is a compact component that does not require a specific type of cap, excels in waterproofing, and ensures ventilation. In recent years, the decay of the structural body in balcony and parapet areas has become a problem, attributed to the infiltration of rainwater or the lack of ventilation for rainwater. "KanKEY C" is a new product in the "KanKEY series" developed and sold to address these issues in balcony and parapet areas. 【Features】 ○ Does not require a specific type of cap → No need to change the size of the cap for ventilation ○ Completely hidden by the cap → The main body becomes invisible, ensuring excellent design ○ Internal flap stops the intrusion of rainwater → Incorporates a pendulum-type WaterStop function used in air fresheners *For more details, please contact us or check the link below (our company website).

• Balcony/Sunroom Unit

"Pack Change" is a roof ventilation system for renovations that can shorten construction time with a simple three-step installation. It allows for the existing metal sheeting to be utilized as is while installing the main unit. By efficiently ventilating the attic, it contributes to the longevity of the home and is effective in addressing summer heat and winter attic condensation. 【Features】 ■ Can be installed using the existing metal sheeting as is ■ Three-step installation ■ Efficiently ventilates the attic ■ Effective in extending the lifespan of the home, addressing summer heat, and preventing winter attic condensation ■ Eligible for renovation defect insurance *For more details, please contact us or check the link below (our company website).

• Ventilation openings

"Elegant + (Plus)" is a product that allows for ridge ventilation for clay tiles. Conventional products maintained waterproof performance with a deflector structure, but by adopting a double ventilation structure with upper and lower ventilation components, we achieved higher water-stopping performance than conventional products. Furthermore, by eliminating the deflector that was present in "Elegant," the appearance of the finished product has significantly improved, along with enhanced workability and safety. 【Features】 ■ High waterproof performance with double ventilation structure for reliable rain protection ■ Improved design, workability, and safety ■ Increased ventilation volume ■ Product design focused on the user ■ Fire-resistant specifications available as an option for semi-fireproof areas *For more details, please contact us or check the link below (our company website).

• Ventilation openings

"TEPPEKI" is a high-performance wall stop that prevents rainwater from entering the exterior wall ventilation layer. By installing the "W Defender," rainwater that flows down the lower part of the exterior wall is guided downwards, preventing its intrusion into the ventilation layer and the splashing effect. Additionally, by extending the drainage guide plate to the flange of the rain guard, it effectively catches all the rainwater flowing from the rain guard. [Features] - Ensures rainwater is reliably directed to the gutter - Prevents rainwater from entering the exterior wall ventilation layer - No additional processing required for reduced construction work - A calculated structure that does not let rainwater escape - Achieves reliable sealing with the W Defender *For more details, please contact us or check the link below (our company website).

• others

"Overhang" is a metal flashing component for drainage in overhang areas such as balconies and entrance porches. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

"Ventilation overhang" is a drainage metal component that also serves as an air intake at the lower edge of the overhang areas such as balconies and entrance porches. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

"Foundation water cut" is a metal component installed at the lower edge of the exterior finish to prevent rainwater from entering between the foundation and the base. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

"Intermediate water cut" is a metal component used for the separation of siding at the top and bottom, or in cases where there is a step difference. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

"Partial waterproofing cut" is a metal component that covers the exposed underside of the field board. It is effective for rainwater management at the edges and is mainly used in semi-waterproof areas. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

The "water-returning ventilated foundation water drainage" is a metal component installed at the lower edge of the exterior finish to prevent rainwater from entering between the foundation and the base. This type includes a water-return feature for added rodent prevention. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

"KERABA" is a metal component that secures the edges of roofing materials by inserting them into the keraba section. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

The "ridge" is a metal component that covers the joints of roofing materials at the ridge of the roof to prevent rainwater intrusion. *For more details, please contact us or check the link below (our company website).

• Ventilation openings

The "single slope ridge" is a metal component that covers the joints of roofing materials at the ridge of a single slope roof, which has a slope in only one direction, to prevent rainwater intrusion. *For more details, please contact us or check the link below (our company website).*

• Ventilation openings

"Rain stop" is a sheet metal component that accommodates the junction between the lower roof and the upper wall. It also serves to discharge water flowing along the surface of the exterior wall and the back of the exterior material without allowing it to enter the interior. *For more details, please contact us or check the link below (our company website).

• Ventilation openings