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  1. Home
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  5. Ventilation system
  6. Special Discussion: "Humidity and Condensation Measures in Attics. The Importance of Ventilation."

Special Discussion: "Humidity and Condensation Measures in Attics. The Importance of Ventilation."

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last updated:Jul 24, 2025

セイホープロダクツ 業務本部
セイホープロダクツ 業務本部
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The Future of Wind and Housing! A Discussion on the Current State of Attics in Japanese Homes.

In this discussion, we explain measures against humidity and condensation in attics, as well as the importance of ventilation. Our company launched the underfloor ventilation system in 1981, and two years later, we introduced the attic ventilation system. Since then, after several model changes, it has become common to adopt it as a standard specification for new constructions. However, through many years of promotional activities, there is an impression that attic ventilation is perceived only as a measure against heat by both businesses and end users. *For more details about the discussion, you can view the PDF materials or related links. Please feel free to contact us for more information.*

    Ventilation system
特別対談.jpg

Special Discussion: "Humidity and Condensation Measures in Attics. The Importance of Ventilation."

特別対談.jpg
特別対談.jpg 技術開発本部 芳谷 忠治.png 代表取締役 社長 大石 龍也.png 須貝 高 教授.png
  • Related Link - https://www.seiho-sdk.co.jp/topics/2037/
  • Special site - Product/service details - https://pr.www.ipros.com/seiho-sdk/product/

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Special Discussion: "Humidity and Condensation Measures in Attics. The Importance of Ventilation."

Special Discussion: "Humidity and Condensation Measures in Attics. The Importance of Ventilation."

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"Wind Noh Series" for heat prevention in the shed.

"Wind Noh Series" for heat prevention in the shed.

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"Wind Noh Series" for heat prevention in the shed.

"Wind Noh Series" for heat prevention in the shed.

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How does the temperature change with mechanical ventilation in the shed? [Kazenosuke Blower 24 / Kazenosuke Unit]

How does the temperature change with mechanical ventilation in the shed? [Kazenosuke Blower 24 / Kazenosuke Unit]

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Heat management in the shed is urgent!

Heat management in the shed is urgent!

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24-Hour Ventilation Support System "Fuutaro Blower 24 Set + Kazunosuke Blower 24 Set"

24-Hour Ventilation Support System "Fuutaro Blower 24 Set + Kazunosuke Blower 24 Set"

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Remote live inspection service

  • Seminar・Event

■Live Inspection Start Our company conducts inspections to provide our clients with a deeper understanding of the effectiveness, safety, and installation information of the products they sell. This includes visits to our simulation studio, experimental laboratory, test house, and production line. By observing the visualization of product effects, safety tests, and durability test scenes, we have received feedback such as "I have gained a deeper knowledge of the products" and "I can confidently propose to end users." We are pleased to announce the launch of our 'Remote Live Inspection Service,' focusing on smoke simulation and security systems, which have been the main features of our inspections. Taking into account feedback such as "I am interested, but it's difficult to come to Fukuoka due to the distance" and "It's challenging to coordinate schedules for multiple people," the content will be a condensed version, but we will provide an interactive explanation similar to what you would experience in person. 【Flow of Remote Inspection】 ■ For underfloor ventilation... Approximately 30 minutes ■ For security... Approximately 20 minutes ■ Q&A... About 10 minutes

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Heat management in the shed is urgent!

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The heat inside the room may be caused by "heat trapped in the attic." In the summers of 2024 and 2025, extreme heat is expected to be even more severe than usual, with daily temperatures exceeding 35°C becoming the norm. Even with the air conditioning running at full capacity, are you experiencing issues like "the second floor is unusually hot" or "the room temperature doesn't drop even at night"? One of the causes of this is the heat trapped in the attic. When direct sunlight hits the roof, the temperature in the attic can reach nearly 70°C, compared to an outside temperature of 35°C. This heat radiates into the living space, not only raising the indoor temperature but also reducing the efficiency of the air conditioning, which can lead to increased electricity bills and negative health effects. ■ Start now! Efficient heat countermeasures with "attic ventilation" ■ Now is the perfect time to install it ahead of the summer peak ■ Attic ventilation is not just for summer * The attic ventilation system by Kazunosuke 24 is effective not only for summer heat but also for winter condensation prevention. Please be sure to read the 【related materials】【related links】. ↓ ↓ ↓

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セイホープロダクツ

セイホープロダクツ 業務本部

Building materials, supplies and fixtures manufacturers

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In the 21st century, the way human society exists on a global scale is being questioned. In this era of rapid change, what kind of aspirations should we have when engaging in business? SEIHO's new concept naturally emerged from such inquiries. "Compassion" is the new concept. Rather than pursuing extravagant ideas, we want to delve deeper into a simple concept that everyone can be confident in. We wish to return to our origins to realize this concept. In a time when a diverse array of information is overflowing, misjudging the clear distinction between "purpose" and "means" can render even effective technologies futile. SEIHO will firmly place "principles, fundamentals, and essence" as the axis of our management decisions, learning from the wisdom of past sages while creating genuine technologies and services that benefit society.

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