トーコー List of Products and Services

Awarded the Good Design Award. This is the industry's first PV cable entry component. The "entry unit" allows cables to enter from the ridge into the attic, so they do not protrude from the wall, preserving the aesthetic appearance, and it protects the house from rainwater using technology developed over approximately 20 years of ridge ventilation. It can be used with houses that have a single-pitched roof. Compatible roofing materials include metal roofs and slate roofs. Metal roofs are compatible with a wide range of slopes (0.5 to 6.5 inches), while slate roofs accommodate a wide range of slopes (2.5 to 6 inches; single materials start from 1.5 inches). 【Features of the Entry Unit】 1. Reduces the hassle of construction management! 2. An item that considers aesthetics! 3. Compatible with various roofing materials and shapes! 4. Makes wiring design easy! 5. Eliminates worries about leaks! *For more details, please check the product introduction page on our website.

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Awarded the Good Design Award. This is the industry's first PV cable entry component. The "entry unit" allows cables to enter from the ridge into the attic, preventing them from emerging on the wall side and maintaining aesthetic appeal. It protects homes from rainwater using technology developed over approximately 20 years of ridge ventilation creation. It can be used in houses with a single-pitched roof that has a ridge. Easy installation with one-motion attachment. Compatible with metal roofs and slate roofs. It accommodates a wide range of slopes (metal: 0.5 to 6.5 inches, slate: 2.5 to 9 inches). 【Features of the Entry Unit】 1. Reduces the hassle of construction management! 2. An item that considers aesthetics! 3. Compatible with various roof materials and shapes! 4. Makes wiring design easy! 5. Eliminates worries about leaks! *For more details, please check the product introduction page on our website.

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Awarded the Good Design Award. 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 and maintaining aesthetic appeal. It protects homes from rainwater using technology developed over approximately 20 years of ridge ventilation creation. It can be used on gable roofs and hip roofs with flat ridges. Compatible roofing materials include metal roofs, and it accommodates a wide range of slopes (0.5 to 6.5 inches). 【Features of the Entry Unit】 1. Reduces the hassle of construction management! 2. An item that considers aesthetics! 3. Compatible with various roofing materials and shapes! 4. Makes wiring design easy! 5. Eliminates worries about leaks! *For more details, please check the product introduction page on our website.

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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 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 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 of wind power. 【Improved Design Aesthetics with Less Prominent Ridge Ventilation】 The old products had a step in the ridge ventilation area, making it stand out, 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.

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The "Katanagare i-ROOF2" is the industry's first metal roof dedicated to single-slope ridge ventilation, equipped with high-level waterproof performance capable of withstanding severe storms accompanied by strong winds, such as large typhoons and guerrilla downpours. 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 outdoors, thereby preventing rainwater intrusion. Additionally, the Side Wing Ventilation Structure not only enhances waterproof performance but also improves attic ventilation through the wing effect harnessing wind power. 【Spacer-In Flat Method - Beautiful Finishing of the Wall Surface on One Side -】 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," there is no longer a need to visit the site twice for temporary and final installation of the ridge ventilation, allowing for a one-stop completion of the ridge ventilation installation.

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The "Rain Stop i-ROOF 2" is the industry's first dedicated metal roof rain stop ventilation system that possesses a high level of waterproof performance, designed to withstand severe storms accompanied by strong winds, such as large typhoons and sudden heavy rains. 【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 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 of wind power. 【Dual Ventilation Structure - Achieving a 60% Increase in 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 between waterproof performance and ventilation performance. For more details, please contact us or check our company website.

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We offer 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 through airflow. This creates a flow that expels air from the attic to the outside, 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.

• Ventilation and Exhaust

The "Single-Slope i-ROOF2" was released on May 22 as a successor to the "Single-Slope i-ROOF" (hereinafter referred to as the old product), which has been highly praised and loved for many years. This time, additional new specifications have been added to the "Single-Slope i-ROOF2." After its release, we received many requests from customers who were familiar with the old product to add the wall-side drop width of 150 mm to the "Single-Slope i-ROOF2." As a result, we have decided to launch the redesigned "Single-Slope i-ROOF2 150." With the addition of this product, the applications for single-slope roofs with various configurations will further expand, enhancing customer convenience. We encourage you to make use of the newly added "Single-Slope i-ROOF2 150" in various projects.

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This is the industry's first PV cable entry component. The "entry unit" allows cables to enter from the ridge into the attic without protruding from the wall, preserving aesthetics and protecting the home from rainwater with technology developed over approximately 20 years of ridge ventilation creation. It can be used in houses with flat ridges, gable roofs, and 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 the slate version in this series, it is compatible with ridge ventilation for 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 the hassle of construction management! 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.

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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: a reliable "high waterproof performance" that can withstand stormy weather, and a "high ventilation performance" that allows ventilation even with short ridges, such as those found on hip roofs. (Developed by our company using the "Side Wing Ventilation Structure" (patent pending)) 【Features】 - Waterproof performance that is reliable even in stormy weather at the level of large typhoons → Passed a very rigorous spray and wind test with a rainfall rate of 240mm per hour and wind speed of 40m/s - Sufficient ventilation performance even with short ridges → Achieved an industry-leading effective opening area of 438cm² (1P) - Significantly improved workability for roof installation → Achieved over three times the workability compared to our conventional products 【Side Wing Ventilation Structure】 - Utilizes the power of the wind 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.

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"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 impact of global warming, Japan's roofs are required to have high performance due to the occurrence of large typhoons and sudden heavy rains. 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】 - Reliable waterproof performance even in storm conditions of large typhoons → Passed the water spray and wind test with a rainfall rate of 240 mm per hour and wind speed of 40 m/s. - Improved ventilation performance alongside waterproofing → Achieves an effective opening area of 438 cm² (2P). [28% increase in ventilation performance compared to our conventional products] - 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 the roof slope, improving on-site convenience. 【What is the Side Wing Ventilation Structure?】 - Utilizes wind power to create negative pressure with the side wings, 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.

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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 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 consists of 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 in a short period, such as guerrilla downpours. - 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).

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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. Kato, who is in charge of the wooden house construction specifications at the Japan Housing Finance Agency, discussing the issues and countermeasures regarding attic condensation.

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This catalog features a wide range of products based on "ridge ventilation." We introduce numerous products, including the "Single Slope Double Vent," which significantly enhances design aesthetics with a new method that does not directly fix to the wall, the revolutionary air supply component "Air Fresh" that can be used at the eaves even with zero overhang, 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 Exhaust

In wooden houses, the ventilation and air circulation of the structure is considered important, yet it poses many problems. Professor Hiroaki Saito from Ashikaga University, who is conducting 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 real examples over six sessions. <Content> Vol.1 The Necessity of Ventilation and Air Circulation Vol.2 Attic Ventilation Vol.3 Case Study 1: Problems Due to Poor Ventilation Vol.4 Case Study 2: Problems Due to Poor Ventilation Vol.5 The Necessity of Ventilation in Lower Roofs Vol.6 Modern Living Environments and Ventilation

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"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 appearance. [Features] ■ Design quality significantly improved with the new construction method ■ Usable not only with decorative slate but also with metal roofing materials ■ Ridge ventilation expected to improve inventory efficiency ■ 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 reduction in 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 Exhaust

"Air Fresh" is an air intake component that is 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 fire protection function that blocks the air intake path to prevent the spread of fire. By using our original heat-expanding material, which is adjusted for foaming temperature and foaming ratio with a proprietary blend, we can block the air intake path with the heat-expanding material during a fire. The flap is shaped like an S, and by changing the center of gravity of the flap, we have ensured a consistent state after falling, allowing the air intake path to be blocked by the heat-expanding material. This S-shaped flap structure is our original technology that is currently pending patent. 【Features】 - Fire protection function that blocks the air intake path to prevent the spread of fire - Original heat-expanding material adjusted for foaming temperature and foaming ratio with a proprietary blend - Blocks the air intake path with heat-expanding material - "S-shaped flap structure" that ensures reliable and secure blockage - Confirmation of the blockage situation of the air intake path 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).

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The 'Nokizero Gable Side Ventilation Cut' is an exterior wall ventilation component that allows exhaust from the gable side of a Nokizero house. It has been developed as a dedicated component for gable side ventilation in the exterior wall ventilation method of Nokizero 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 is reliable 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).

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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 can be easily installed using dedicated fixing screws. It has been renewed from a fire protection device installation type to a built-in type, allowing for 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).

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The "Entry Unit for i-ROOF / Single Slope Dual Ventilation" is a groundbreaking PV cable entry component that combines design, water tightness, and functionality. Since it enters the attic from the ridge, cables do not emerge on the wall side, preserving the aesthetic appeal and protecting the home from rainwater with 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 tightness. The cover also directs water droplets dripping from the ceiling outward, making it difficult for droplets to enter the entry point. 【Features】 ■ Enhances aesthetics by concealing cable lines from the exterior of the house ■ Neatly stores TV antenna cables and more ■ 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).

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"Pack Change" is a roof ventilation system for renovations that can shorten construction time with a simple three-step installation. It is possible to utilize the existing metal sheeting as is and install the main unit. By efficiently ventilating the attic, it contributes to the longevity of the house 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 house, addressing summer heat, and winter attic condensation ■ Eligible for renovation defect insurance *For more details, please contact us or check the link below (our company website).

• Ventilation and Exhaust

"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, we have achieved easier and faster installation. 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 appearance. 【Features】 ■ Outstanding cost performance ■ Compact design that is hidden 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).

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"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 under the cap → The main body becomes invisible, ensuring excellent design ○ Internal flap stops the intrusion of rainwater → Features a pendulum-type WaterStop function, also used in air fresheners *For more details, please contact us or check the link below (our company website).

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The "Tile Ventilation 960" is a product that allows for ventilation of the roof sheathing specifically for 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 sheathing, making it suitable for roof shapes that were traditionally difficult to install on, such as sloped roofs and staggered roofs. 【Features】 ■ Fire-resistant specifications available ■ Overwhelming effective opening area ■ Versatility not affected by the shape of the ridge tiles ■ 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).

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"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 user needs ■ 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).

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"TEPPEKI" is a high-performance wall stop that prevents rainwater from entering the exterior wall ventilation layer. By installing the "W Defender," rainwater that travels down the lower edge of the exterior wall is guided downward, 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 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 allow rainwater to escape - Achieves reliable sealing with the W Defender *For more details, please contact us or check the link below (our company website).

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"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).*

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

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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).

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The "single slope ridge" is a metal component that covers the joints of roofing materials on 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).*

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"Ventilated 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).*

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"Overhang" is a metal 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).*

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The "water return vented 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).*

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"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).*

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"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).*

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"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).*

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