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  3. セイホープロダクツ 業務本部
  4. Checkpoints and measures for underfloor inspection after typhoons and heavy rain.
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  • Jun 27, 2025
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Jun 27, 2025

Checkpoints and measures for underfloor inspection after typhoons and heavy rain.

セイホープロダクツ セイホープロダクツ 業務本部
"Because it's an unseen place, we won't overlook it." Japan's climate is hot and humid, and particularly after typhoons and heavy rains, the conditions for homes become harsh. It's not just the roof and exterior walls that are affected by rain and wind. The area beneath the floor is actually the most susceptible and often overlooked point. This time, we will explain the "checkpoints under the floor" that should be confirmed after a typhoon or heavy rain, the "responses" if abnormalities are found, and measures to prevent recurrence. [Table of Contents] ■ Why is a floor check necessary? ■ Checkpoints to confirm after a typhoon or heavy rain ■ Responses when damage is discovered ■ Points for preventing recurrence ■ Suggestions from Seihou Products ■ Summary Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓
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Checkpoints and Countermeasures for Underfloor Inspection After Typhoons and Heavy Rain | Seihou Products for Underfloor and Attic Ventilation
About Underfloor Ventilation | Seihou Products for Underfloor and Attic Ventilation

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タービン・ユニット Type Ai無塗装.jpg

Underfloor Ventilation Series "Turbine Unit Type Ai"

Exhaust type + diffusion type unit! A subfloor ventilation series that detects humidity conditions and draws in dry air from beneath the floor.

The system detects the amount of water vapor (absolute humidity) and independently controls the exhaust ventilation system and the diffusion-type blower. When there is a high amount of water vapor, only the diffusion-type blower operates, and when it is low, the exhaust ventilation system operates in conjunction, bringing in dry air from below the floor. POINT 1: Optimal independent operation of exhaust and blowing with absolute humidity sensors POINT 2: Optimal deodorization operation with standard phytoncide POINT 3: Detects abnormalities in the underfloor ventilation fan and underfloor water issues, displaying them on the controller. 【Features】 ○ Effective against underfloor moisture, condensation, and mold ○ Powerful exhaust and diffusion For more details, please contact us or download the catalog.

  • Ventilation system
  • Unit and other construction
  • Air compressors, blowers and pumps

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タービン・ユニット Type Bi無塗装.jpg

Underfloor Ventilation Series "Turbine Unit Type Bi"

Exhaust type + stirring type unit type

The system detects the amount of water vapor (absolute humidity) and independently controls the exhaust ventilation system and the mixing fan. When there is a high amount of water vapor, only the mixing fan operates, and when it is low, the exhaust ventilation system operates in conjunction to bring in dry air from below the floor. POINT 1: Optimal independent operation of exhaust and air supply using absolute humidity sensors POINT 2: Optimal deodorization operation with standard phytoncide POINT 3: Detects abnormalities in the underfloor ventilation fan and water issues, displaying them on the controller. 【Features】 ○ Effective for underfloor moisture, condensation, and mold prevention ○ Powerful exhaust and mixing For more details, please contact us or download the catalog.

  • Ventilation system
  • Unit and other construction
  • Air compressors, blowers and pumps

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風太郎ユニット(かくはんマイナーチェンジ).jpg

Underfloor ventilation unit "Kazetaro"

A comfortable indoor environment! Prevents condensation and extends the lifespan of the building.

The "Kazetaro" underfloor ventilation system forcibly introduces air into the crawl space, maintaining a comfortable condition for the wood. It is particularly effective in eliminating condensation. Underfloor ventilation also impacts the indoor environment, reducing conditions that promote the growth of dust mites and mold, thus benefiting the health of the family. The Kazetaro unit features a hybrid sensor that detects the amount of water vapor (humidity) in the outside air, and a hybrid controller that independently controls the Kazetaro blower type and Kazetaro mixing type, creating optimal ventilation operation for the wood in the crawl space. 【Features】 ○ Prevents the breeding of pests by improving ventilation effectiveness ○ Forcibly introduces air into the crawl space to prevent condensation ○ Maintains a comfortable condition for the wood, extending the lifespan of the building ○ Reduces conditions for the growth of dust mites and mold, creating a comfortable indoor environment For more details, please contact us or download the catalog.

  • Ventilation and smoke exhaust equipment
  • Unit and other construction

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風太郎ベーシック(SS).jpg

Underfloor ventilation system "Fuutaro Basic"

Equipped with a water immersion sensor! Detects leaks due to flooding under the floor, deterioration of drainage pipes, and other damages!

"Kazutarou Basic" is a localized underfloor ventilation system designed to address areas prone to moisture accumulation, such as around water sources and the north side of buildings. Equipped with a flooding sensor, it quickly detects not only underfloor flooding caused by water damage but also leaks due to deterioration or damage to drainage pipes, providing peace of mind by alerting you to abnormalities. We offer two models: the "Kazutarou Basic SS" with a timer type and flooding sensor, and the standard timer type "Kazutarou Basic." 【Features】 ■ Equipped with a flooding sensor ■ Detects underfloor flooding and leaks due to deterioration or damage to drainage pipes ■ Supports environments where natural ventilation is insufficient with forced ventilation ■ Safety measures against increasing underfloor flooding and leaks *For more details, please refer to the external link page or feel free to contact us.

  • Underfloor storage unit
  • Ventilation system

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top.jpg

Underfloor electronic dehumidification unit 'DRY PRO' Ver3

Contributes to the suppression of condensation and mold under the floor. A new model compatible with the foundation packing method has been introduced.

The "DRY PRO" Ver3 is an electronic dehumidifying and ventilation unit for underfloor use, combining a Peltier cooling device with a dedicated stirring and diffusion-type blower. In addition to the diffusion-type model "TYPE-D" for foundation insulation methods, a new model "TYPE-C" compatible with foundation packing methods has been added to the lineup. It can dehumidify even in areas where moisture tends to accumulate by stirring a wide range of air. It helps suppress moisture and condensation under the floor, contributing to the prevention of mold, pests, and decay fungi in wooden components. Furthermore, with the version upgrade in June 2024, a powerful dehumidification operation mode has been added. The surrounding temperature range for dehumidification operation (low-temperature dehumidification operation range) has been expanded, now accommodating surrounding temperatures down to 5°C. 【Features】 ■ Easy installation with a φ22 drainage hole (no drainage pump required) ■ Automatic operation possible with a dedicated indoor controller ■ The direction of the aluminum duct of the blower can be set freely ■ Dehumidification capacity of 1800mL per day (depending on conditions) ■ Uses non-fluorinated electronic cooling technology ■ Compatible with underfloor flooding sensors (optional) *For more details, please refer to the PDF document or feel free to contact us.

  • Heating and cooling equipment and facilities

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Related catalog(4)

Underfloor Ventilation Series "Turbine Unit"

Underfloor Ventilation Series "Turbine Unit"

PRODUCT
  • E-book viewing
  • Catalog download

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Underfloor electronic dehumidification unit 'DRY PRO' Ver3

Underfloor electronic dehumidification unit 'DRY PRO' Ver3

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Underfloor ventilation "Kazetaro"

Underfloor ventilation "Kazetaro"

PRODUCT
  • E-book viewing
  • Catalog download

Contact this catalog

Is a ventilation fan under the floor necessary?

Is a ventilation fan under the floor necessary?

TECHNICAL
  • E-book viewing
  • Catalog download

Contact this catalog

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Digital Agency: "Paperlogic can be used as contract documents for the national and local governments."

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"Electronic contracts for national and local governments are also available with 'paperlogic Electronic Contracts'" In December of last year (2023), we made an inquiry regarding our service 'paperlogic Electronic Contracts' under the Digital Agency's gray zone elimination system concerning the 'Law and Orders Regulating New Business Activities.' As a result, we received a response from the Digital Agency stating that 'paperlogic Electronic Contracts' can be used as an electronic record in place of paper contracts for national and local government contracts. "'paperlogic' is also endorsed by the Digital Agency" In this inquiry, we received confirmation that 'paperlogic Electronic Contracts' can be utilized as an electronic record in place of paper contracts for national and local government contract documents. From now on, you can confidently use 'paperlogic Electronic Contracts' for all types of contracts, including administrative contracts and discretionary contracts, not only between private companies but also in the contracting practices of local governments. For business document digital transformation and electronic contract services, please feel free to consult with paperlogic.

Oct 21, 2025

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[Free Materials Available] Introducing Useful Information on Vehicle Detection Sensors!

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  • CATALOG

To customers considering the introduction of vehicle detection sensors for parking lot construction, design, or management: Are you facing any challenges with current issues or selecting the right sensors for parking management? Hotron offers free materials that explain how to utilize vehicle detection sensors and the benefits of their introduction! ▽ Here is the lineup of materials ◉ Vehicle Detection Sensor Basic Guide This guide focuses on the challenges and solutions in parking lot operations, introducing the overview of vehicle detection sensors. ◉ Key Points for Introducing Vehicle Detection Sensors This material discusses the benefits of introduction based on installation locations and specific challenges. ◉ Case Studies of Vehicle Detection Sensor Implementation This document presents the challenges before implementation and the results after introduction. For more details, please download from our website and check it out. https://www.hotron.co.jp/download/

Oct 21, 2025

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[Announcement of Special Campaign] "For existing Jutender users" 'Jutender Trade-In Campaign'

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  • EVENT

The production, sales, and maintenance services for Jutender will end in January 2025, and maintenance and warranty from the manufacturer will no longer be available. (From the website of Akebono Brake Corporation) As a successor, PERI JAPAN will take responsibility. We are pleased to offer a "trade-in campaign" to existing Jutender users who purchase the new PERI InSite. If you are looking for a successor model to Jutender, please feel free to contact us. Period: From October 2025 to the end of December Conditions: - Trade-in (we will accept the handover of the Jutender. The condition, including any damage, does not matter.) - Purchase of our products (1 Hub + 4 Nodes) as a new purchase Benefits: You can purchase the following items at a special price: - Vibration devices (5m) - 300 units - Equipment case & system case - Charger - 1 roll of temperature sensor Additionally: - Cloud usage fee effectively for one year (free) - Initial on-site installation fee (free) - One year of user support from the date of purchase (free) *Please consult us regarding delivery times. PERI JAPAN Co., Ltd.

Oct 20, 2025

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Solve your problems with wired bed exit sensors by connecting a wireless set linked to the nurse call system!

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Do you have any concerns or requests regarding wired bed exit sensors? × Tangling or tripping over wired cables × Cable disconnection or damage × Worrying about forgetting to turn the switch back on after temporarily stopping the sensor. × Wanting to be notified of bed exits even from a location far from the nurse call outlet. Such concerns can be resolved simply by connecting our wireless nurse call linked set to the sensor! Our wireless nurse call linked set allows you to connect bed exit sensors like "Ugo-kun," "Foldable Thin Matta-kun," "Ayumi-chan," and "Just Place Pole-kun" to transmitters and receivers, reducing wiring around the bed area, alleviating concerns about tripping or falling due to cables, and contributing to a tidier work environment. Furthermore, it enables the use of bed exit sensors even from locations far from the nurse call outlet, allowing for more flexible equipment placement.

Oct 20, 2025

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The moment you enter the bathroom, a pleasant fragrance. It has a strong scent despite being compact. Majesta Fragrance.

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For those struggling with toilet odors. In such cases, we recommend our commercial aroma diffuser "MajestaFragrance" MFmini. Despite its small and compact size, it features powerful diffusion capabilities that effectively spread fragrance throughout the space. Unlike typical air fresheners that quickly lose their scent, it maintains a strong fragrance for a long time. You can freely adjust the fragrance intensity and timer settings, allowing for optimal scent presentation based on the size of the restroom and frequency of use. It's perfect for guest visits and store restrooms. By adding a sense of cleanliness and luxury, you can create a space that smells great the moment you enter. Currently, we are running a free trial installation campaign limited to the Kanto area. Would you like to make your daily restroom experience more comfortable with fragrance?

Oct 20, 2025

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