日本住環境 List of Products and Services

The "SEV-15" is a ventilation edge material that can be used for eaves water drainage, eaves flashing, ceramic eaves, and steel eaves, accommodating a variety of designs based on the presence of eaves, orientation, construction methods, and specifications. By combining a cut opening with a honeycomb-shaped ventilation material, it achieves high waterproofing performance. It can be easily installed by simply fastening it to the framing. Even with a small fascia, it is less likely to protrude, allowing for a clean design without the need for eaves. It reduces the risk of water leakage and condensation affecting the structure, contributing to the longevity of the building. 【We can meet the following requests】 ■ I want to slim down the eaves and fascia. ■ I need materials that can be used with or without eaves. ■ I want to pursue a higher level of residential construction. ★ With this upgrade, the effective opening area has increased by 28% compared to our conventional products (from 78 cm²/m to 100 cm²/m), achieving an increase in ventilation volume. * You can view the product catalog from the "PDF Download." Please feel free to contact us with any inquiries.

The "REV-15" is a slim design ventilation edge material that can accommodate various orientations, construction methods, and specifications, including zero eaves, water side, and under water side, as well as zero eaves and eaves overhang. It meets the demands of customers who are particular about residential design, such as "I want a slim eave and fascia" and "I need materials that can be used regardless of the presence of eaves." Additionally, in response to requests from the field, the effective opening area has been increased by 28%. By improving it to 100 cm²/m, the ventilation volume has been enhanced. 【Features】 ■ Easy installation: Simply attach it to the roof sheathing ■ Slim design: Neatly accommodates eaves and fascia ■ Compatible with diverse designs: Usable with or without eaves ■ High waterproof performance: Increased waterproofing with cut openings and honeycomb shape *For more details, please refer to the materials. Feel free to contact us with any inquiries.

The "ep45 Eaves Zero SII" is a eaves ventilation component designed with the concepts of slim, sharp, and stylish. Its design allows for a clean look without the need for a gable, broadening the scope of design possibilities. It can accommodate designs tailored to the client's requests, and it has improved workability through the elimination of sealing and the lightweight nature of the main body. 【Features】 ■ A clean design is possible without the need for a gable. ■ Equipped with waterproof packing, eliminating the need for sealing work. ■ Successful in slimming down and lightening by omitting thermal insulation boards. ■ Achieved 45-minute semi-fire resistance. ■ High waterproof performance with steel plate openings and a honeycomb shape. *For details, please request materials or view the PDF data available for download.

The "Open Board" is a product that allows for easy establishment of ventilation pathways at ridge caps when combined with ventilation components such as ridge vents, roof spacers, and eaves vents. It was developed in response to demands like "I don't want the ventilation layer at the ridge cap to just be an air layer!" and "I want to ensure ventilation pathways while maintaining a typical installation!" No special precuts or complex construction are required, and it effectively opens up closed spaces that were blocked by the roof sheathing. 【Features】 - Ensures ventilation pathways and simplifies troublesome construction - Compatible with 2x4 ridge openings - Supports roof sheathing thickness of 12mm *For more details, please refer to the materials. Feel free to contact us with any inquiries.

In the case of traditional eaves ventilation from the eaves, perforated boards or ventilation openings are used, but when viewed from below, the ventilation openings are clearly visible. The "em Eaves Ant 8" is designed so that the ventilation openings are not visible from below, achieving effective ventilation performance without compromising the simple exterior design. Since it can be installed continuously, it prevents air stagnation, attic condensation, and heat buildup. 【Features】 ■ Easy installation ■ Compatible with eaves materials up to 8mm thick! ■ Usable on both horizontal and sloped surfaces, providing a wide range of installation options ↓ For more details, please download the catalog or contact us.

The "ep30 eaves ventilation material" features a large opening area of 150 cm²/m while maintaining a structure that conceals the ventilation holes from below. It is equipped with thermal expansion material and has passed the 30-minute quasi-fire resistance test. It accommodates eaves materials with a thickness of 8 mm and eaves projections of less than 2000 mm. Since it can be installed continuously, it prevents air stagnation and helps avoid attic condensation and heat accumulation. 【Features】 ■ Simple exterior design ■ Blocks rainwater with cut openings and slit openings ■ Can be installed at the wall base, mid-section, and nose tip ■ Fire protection certification obtained (number: QF030RS-0343) ■ Also available is the "em eaves ventilation 8," suitable for use in non-fireproof areas *For more details, please refer to the materials. Feel free to contact us with any inquiries.

The "SEV-18" can be used for eaves water drainage, verge metalwork, ceramic eaves, and steel eaves, and is a versatile edge material that accommodates various designs based on the presence of eaves, orientation, construction methods, and specifications. By combining a cut opening with a honeycomb-shaped ventilation material, it achieves high waterproofing performance. It can be easily installed by simply fastening it to the framing. Even with a small nose cover, it is less likely to protrude, allowing for a clean design without the need for eaves. It reduces the risk of water leakage and condensation affecting the structure, contributing to the longevity of the building. 【We can meet the following requests】 ■ I want to slim down the eaves and nose cover. ■ I need materials that can be used with or without eaves. ■ I want to pursue a higher level of residential construction. *For more details, please refer to the PDF materials or feel free to contact us.

The "Roof Spacer WB" is a roof ventilation layer support component that incorporates wind resistance when using fiber-based insulation materials, and features a circular shape for moguls (bumps). It securely maintains a 30mm roof ventilation layer, enhancing durability and heat dissipation, which helps prolong the lifespan of the house. 【Features】 ■ High wind resistance ■ New material and innovative PET non-woven fabric ■ Quick and clean installation ■ Creates a safe working environment for roof construction *For more details, please refer to the PDF document or feel free to contact us.

The eaves ventilation component "ep30 Eaves Ari K" does not show ventilation holes when viewed from below, achieving solid ventilation performance without compromising a simple exterior design. It can be installed continuously, preventing stagnant air and issues like attic condensation and heat accumulation. 【Features】 ■ Acquired 30-minute fire resistance. The thermal expansion sheet blocks the holes in the grille to prevent fire spread! ■ Compatible with eaves material thickness of 12mm. Fire certification obtained using 12mm eaves material. ■ Suitable for eaves projections of 2000mm or less. ■ Available in two colors (White/Black). *For more details, please refer to the PDF document or feel free to contact us.

Functions as an entrance to the ventilation layer! To prolong the life of a house, it is important to clarify the entry and exit points for air flow. The "Ventilation Layer Holder P" is used as that entrance and holds the ventilation layer in place. It ensures a solid amount of ventilation and provides waterproofing and insect resistance with high weather-resistant polypropylene, securing the quality of your home. 【Features】 ■ Prevents fluttering of breathable waterproof sheets ■ Waterproof and insect-resistant performance with honeycomb structure ■ Compatible with batten sizes of 15 to 18mm ■ For batten size of 18mm, use eaves ↓ For more details, please download the catalog or contact us.

Achieving about twice the ventilation performance of conventional products! The 'ep45 Zero S' has been upgraded and is now available as the 'ep45 Zero SG'. In response to feedback that "the conventional 'ep45 Zero S' is too small for large houses" and "in some buildings, even installing it around the entire perimeter does not secure the necessary ventilation volume," we developed this product to secure the required ventilation volume with half the number of conventional products. By enlarging the openings, we achieved about twice the effective ventilation area compared to conventional products, and the length of the product has also been doubled to 1820mm compared to the conventional model. The 'ep45 Zero SG' is not only fire-resistant and waterproof, but it also features high-quality materials, ensuring reduced installation effort and undoubtedly contributing to higher-quality home construction. 【Features】 ■ Achieves a large opening of 150㎠/m. Steel plate openings are arranged in double layers on vertical and horizontal planes. ■ Obtains 45-minute fire resistance. The thermal expansion material exhibits high expansibility when heated above 200℃. ■ Compatible with a variety of finishing materials. It can be used with various finishing materials without restrictions. ■ Highly durable coating that is resistant to rust. For more details, please download the catalog or contact us.

Ventilation without compromising aesthetics! The 'ep45 No Eaves' is the ideal ventilation component for simple designer houses and other homes without eaves. It can be used not only for eaves but also for the gable, achieving excellent ventilation performance without compromising a simple exterior design. In the event of a fire, the built-in thermal expansion sheet reacts to high heat, sealing the opening to prevent the spread of flames to the attic. 【Features】 ■ Improved workability. Easy installation with included screws from below. ■ Passes fire resistance tests specifically for no-eaves applications! ■ Enhanced waterproofing. The cut opening and honeycomb shape improve waterproofing. ■ Abundant set options. There are plenty of separately sold set options, ensuring peace of mind during installation. For more details, please download the catalog or contact us.

Universal ridge ventilation component that does not limit roofing materials "Flat Vent" is a ridge ventilation component characterized by its conical ventilation material. It accommodates a variety of roofing materials and installation methods, and its thin profile does not interfere with the appearance of the house. It is truly a versatile ridge ventilation component with excellent waterproofing and ventilation properties. 【Features】 ■ Easy to process on-site. Can be used for lower roofs or single slopes with half cuts on-site. ■ Standard water drainage included. No need for separate installation during construction, making it cost-effective. ■ Excellent ventilation and waterproofing. The conical ventilation material arranged in a staggered pattern ensures reliable waterproof ventilation. ■ Good design that does not disrupt the appearance. At a thickness of 15mm, it is unobtrusive even at the ridge top. ↓ For more details, please download the catalog or contact us.

Functions as an entrance to the ventilation layer! To ensure the longevity of a house, it is important to clarify the entry and exit points for airflow. The "Insect-Proof Vent SL" is used as that entrance and maintains the ventilation layer. Additionally, by peeling off the ventilation material according to the size used, it can accommodate wall under-ventilation layers of 20mm, 17mm, and 14mm, making it a very flexible component. *The Insect-Proof Vent SL18, when the ventilation material is peeled off, can accommodate wall under-ventilation layers of 17mm, 14mm, and 11mm. 【Features】 ■ Ventilation layer retaining component usable in three sizes ■ Prevents fluttering of moisture-permeable waterproof sheets ■ Ventilation and insect-proof performance through honeycomb structure ↓ For more details, please download the catalog or contact us.

Convenient eaves ventilation components that can be used as is or in combination. They can be used as eaves ventilation components in narrow areas, zero eaves, and eaves houses. The "Eaves Vent 585H" is recommended for regions with heavy powder snow due to its high waterproofing properties. Both can be combined with the Eve Protector to be used as fire-resistant components. 【Features】 ■ Quick and easy installation ■ Waterproof and insect-proof performance due to honeycomb structure ■ Air intake and exhaust that accommodates all-weather and all-directions ■ Fire resistance rating of 1 hour when combined ↓ For more details, please download the catalog or contact us.

Standard ventilation component for flat roofs and snow-free roofs. It ensures adequate ventilation without compromising aesthetics in small roof ventilation for narrow areas and zero-eave types. There is no need for traditional eaves ventilation openings, so there is no worry about water stains dirtying the exterior walls. By providing ventilation openings around the eaves in all directions, it can respond to any wind direction. This component is perfect for zero-eave houses. The Eaves Vent 18 can also be used as an intake grille (entrance) for the foundation part in the ventilation layer method. 【Features】 ■ Quick and easy installation ■ Waterproof and insect-proof performance with honeycomb structure ■ Intake and exhaust grilles that respond to all weather and directions ↓ For more details, please download the catalog or contact us.

The ventilation layer can directly receive the upward airflow under the balustrade of the balcony, ensuring a reliable ventilation pathway. Additionally, it serves as a protective material, reducing construction effort on-site. 【Features】 ■ Multi-directional ventilation ■ No protective covering or external wall material backing required ■ Compatible with various wall thickness dimensions ■ Clean appearance of the balcony ↓ For more details, please download the catalog or contact us.

Secure ventilation pathways to prevent condensation damage! If the ventilation pathways in attic spaces, balconies, or parapet risers are closed off, there is a possibility of condensation damage occurring inside. Ventilation slits are components designed to efficiently release moisture and heat from these enclosed spaces to the outside. This connects the attic and the ventilation layer, promoting the drying of structural materials and enhancing durability. 【Features】 ■ Can be installed with or without plywood ■ Super waterproof mechanism with upper and lower openings ■ Firmly secures ventilation pathways ■ Effectiveness increased through component combinations ↓ For more details, please download the catalog or contact us.

I want to protect Japan's roofs. The Roof Spacer, a roof ventilation layer retention material, is an essential item for roof insulation. It achieves top-class moisture permeability and durability against moisture. It has excellent compatibility with on-site spray polyurethane foam. It ensures a reliable ventilation layer regardless of the type of insulation material used. Roof surfaces are areas that are directly affected by heat and cold, experiencing extreme temperature differences. The material used to retain the ventilation layer is not only strong but also has high heat resistance, moisture durability, and moisture permeability, shaped uniquely from PET non-woven fabric. It is an essential item for achieving the durability of a 100-year house. 【Features】 ■ Compatible with various insulation materials ■ Easy and clean speed construction ■ PET non-woven fabric specification achieves high performance For more details, please download the catalog or contact us.

It can be used in two ways in both the eaves and the ventilation layer. As an eaves ventilation component, it can be used in narrow areas, zero eaves, and eaves houses. Additionally, it can also serve as a ventilation layer holding component, functioning as an intake grille (entrance) for the foundation part in ventilation layer construction. Made of highly weather-resistant polypropylene, it is expected to provide high effectiveness regardless of its application. 【Features】 ■ Prevents fluttering of the moisture-permeable waterproof sheet ■ Waterproof and insect-proof performance through honeycomb structure ■ Intake and exhaust grilles that respond to all-weather and all-direction needs ■ Ventilation layer holder P for 15-18mm battens ↓ For more details, please download the catalog or contact us.

L-shaped ventilation material that ensures proper ventilation without compromising aesthetics The "L-shaped Ventilation Liner 12" is, as the name suggests, an L-shaped structural ventilation component. Ventilation measures for exterior walls are essential for improving the durability of wooden houses. It can ensure proper ventilation without compromising aesthetics from the top of parapets and balcony railings. It can also be used in areas where ventilation has been difficult, such as zero eaves and gables. 【Features】 ■ Easy installation with L-shape ■ Waterproof and insect-proof performance with honeycomb structure ■ Deterioration countermeasures (attic ventilation measures) ■ Combination for enhanced effectiveness For more details, please download the catalog or contact us.

The ventilation trim material "SEV-15FD" allows for a slim design for eaves and fascia, making it suitable for both eaves-over and eaves-zero houses, and has received positive feedback. It is a product that enhances the fire resistance of the ventilation component "SEV-15." In response to customer requests for a fireproof version of "SEV-15," we have obtained a ministerial certification for a 45-minute quasi-fireproof structure and improved it for use in fire-prone areas. 【Features】 ■ Inherits the slim design of "SEV-15" ■ Achieves high ventilation and waterproof performance ■ Excellent workability *For more details, please refer to the materials. Feel free to contact us with any inquiries.

Ventilation grilles for attics corresponding to quasi-fireproof areas! This eaves ventilation component ensures adequate airflow without compromising aesthetics, suitable for narrow spaces, flat types, and zero eaves. When combined with "Eaves Vent 585," it enhances waterproof and insect-proof performance. Additionally, it has passed a one-hour fire resistance structure certification test, making it a high-spec component that combines ventilation and fire protection performance. 【Features】 ■ Components designed with construction and aesthetics in mind ■ High durability that is resistant to rust and corrosion ■ One-hour fire resistance! Guards against flames ■ Improved waterproof and insect-proof performance when combined For more details, please download the catalog or contact us.

A waterproof component that excels in waterproofing and is not constrained by the shape of the tiles, designed for installation under the tiles. This is a ridge ventilation component for under-tile installation. Since the opening is originally located beneath the tiles, it is difficult for water to enter, which is a significant advantage in terms of waterproof performance. Additionally, because it is installed under the tiles, it is not limited by the shape of the tiles, allowing for easy installation without much concern. The "Under Vents N" is installed as the top tile batten of the tile roof and ventilates through the gaps between the tiles. When constructing a tile roof, please consider using "Under Vents N." 【Features】 ■ Easy to process on-site ■ Waterproof and insect-proof performance due to honeycomb structure ■ Usable for both wet and dry applications ■ Supports ceiling areas of up to 35.0m² with one unit ↓ For more details, please download the catalog or contact us.

A ridge ventilation component that efficiently expels hot air accumulating in the attic! The strong summer sunlight heats the roof and exterior walls, warming the attic and ventilation layers. The heated air rises, forming a layer of hot air. The "Ridge Vent" is installed at the ridge of the house, where hot air tends to accumulate, efficiently expelling moisture and heat from the attic to improve the durability of the home. 【Features】 ■ Easy to process on-site ■ Waterproof and insect-proof performance with honeycomb structure ■ Durable polypropylene resistant to degradation ■ Model 182 fits standard ridge caps ↓ For more details, please download the catalog or contact us.

Exhibits outstanding performance on roof surfaces where the ridge length cannot be taken. This is a ridge ventilation component designed for installation on the roof deck. By providing four-directional side vents on roof surfaces where the ridge length cannot be taken, such as gable or hip roofs, attic ventilation is promoted. It can also be used during roof tile renovations, so please consider it when installing tile roofs. 【Features】 ■ Usable for any roof shape ■ Designed for installation under tiles, compatible with Japanese-style, flat, and S-shaped tiles ■ Waterproof and insect-proof performance due to honeycomb structure ■ Usable for both wet and dry applications ■ Choose the required length from 455 and 910 ↓ For more details, please download the catalog or contact us.

At the online shop of Japan Living Environment Co., Ltd., you can place orders not only from the cart but also via fax. We offer a variety of products, including the "filter for ventilation fan main unit," "filter for Packon 25," and "filter for Square Flow," so please take a look at the related links below. *For more details, please check the related links or feel free to contact us.*

We would like to introduce the official channel of Nippon Living Environment Co., Ltd., "NJK Channel." We are distributing videos that explain product installation methods and promotions, so please take a look at the related links below. *For more details, please refer to the related links or feel free to contact us.

With the best waterproof performance in the series, there is no leakage even at wind speeds of 40 m/s for both flat and hip ridges. This versatile ridge ventilation allows for ventilation at the hip ridge when used in combination with open boards (sold separately), not just on the flat ridge. 【Features】 ■ Suitable for hip ridge types, ideal for apartments with gabled roofs separated by firewalls ■ Reliable waterproofing even in strong wind areas ■ Durable with rot-resistant plastic battens ■ Full guard against insects and animals *For more details, please refer to the materials. Feel free to contact us with any inquiries.

There is an increasing number of housing manufacturers and builders who want to focus on design for the people living in the homes. This blog summarizes how to choose eaves ventilation materials for Japanese living environments, while considering design, as well as the original eaves ventilation performance and fire resistance. Please take a moment to read it. [Contents (excerpt)] ■ Noise-free designs are trending - Noise-free designs without eaves are currently popular in housing - "Eaves-present" style homes ■ Is zero-eaves housing difficult for attic ventilation? ■ Improving living environments by ensuring attic ventilation - Various eaves ventilation materials for Japanese living environments - Conceptual diagram of fire regulations *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.

Low-cost housing often has only minimal insulation performance and may have insufficient airtight construction due to its lower cost. Therefore, if you do not make arrangements with the construction company regarding performance in advance, you may end up with a house that is cold or has significant condensation issues. Additionally, many people adopt Type 1 ventilation systems to create a warmer home, but in poorly performing houses, this can also lead to coldness. In this NJK blog, we will introduce the causes of coldness in low-cost housing, the risks of adopting Type 1 ventilation in low airtight homes, and methods for creating a warm house at a low cost, along with actual survey results of low-cost housing. We encourage you to read it. *For more details about the blog, please refer to the related links. Feel free to contact us for more information.