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  1. Home
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  3. セイホープロダクツ 業務本部
  4. Heat management in the shed is urgent!
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  • Sep 02, 2025
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Sep 02, 2025

Heat management in the shed is urgent!

セイホープロダクツ セイホープロダクツ 業務本部
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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小屋裏DMチラシ250711.pdf[469979]

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With summer in full swing now, it's urgent to address the heat issues in the attic! | SEIHO PRODUCTS
The ventilation system by Kazenosuke 24 is effective not only for summer heat measures but also for winter condensation prevention.
Ventilation in Attics | Seihou Products for Underfloor and Attic Ventilation
Underfloor and attic ventilation consultation room

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Attic ventilation system "Kaze no Suke Series" *For countermeasures against heat in the attic!

Powerful ventilation to expel heat from the attic! A ventilation system that significantly reduces radiant heat caused by trapped heat in the attic!

The "Kaze no Suke Series" is a ventilation system suitable for heat management in attics. When this product is installed, a temperature sensor automatically starts forced ventilation when the set temperature, for example, exceeds 30°C in the attic. During the summer, outside air will continuously flow into the attic, preventing the rise and stagnation of attic temperatures. As a result, the amount of radiant heat transmitted indoors will also decrease, which can lead to raising the air conditioner's set temperature or shortening its operating time. We recommend installation after the climate has cooled, so we suggest considering the introduction of a ventilation system for the next heat management measures. 【Features】 ■ Powerful ventilation expels attic heat and significantly reduces radiant heat ■ Effective against winter condensation in attics *For more details, please download the PDF or feel free to contact us.

  • Ventilation system

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Attic ventilation system 'Kazenosuke' blower 24 set

Measures against heat in the shed! Discharges accumulated heat and improves cooling efficiency! Effective against humidity, condensation, and VOCs!

Modern homes have advanced in high airtightness and high insulation, resulting in issues such as heat accumulation in attics during hot seasons, which decreases air conditioning efficiency. "Attic Ventilation Wind Helper" helps improve air conditioning performance by forcibly expelling heat from the attic and is also effective in preventing condensation and addressing VOCs. We will present a demonstration unit, so please contact us for conditions and details. *The demo schedule will be arranged separately. 【Effects】 ○ Expels heat from the attic, improving air conditioning efficiency ○ Shuts out condensation ○ Effectively expels formaldehyde and VOCs, which are causes of sick house syndrome, protecting the health of your family and home. For more details, please contact us or download the catalog.

  • Ventilation system
  • Roof and gutter construction

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Attic Ventilation: An Important Point for Home and Family Health

Introducing the importance of "attic ventilation" along with a checklist!

Originally, Japanese houses were designed to suit the hot and humid climate, featuring an open structure that allowed for good ventilation. However, modern homes have pursued comfort, leading to increased airtightness and insulation, which has begun to raise concerns in recent years. If only one of the following items is checked, it does not mean you can relax. If any apply, it is a warning signal for your home. 【Let's check together】 ■ It's cool outside, but the room is stuffy ■ Air conditioning is ineffective ■ Many uncomfortable nights ■ Mold has appeared on the ceiling or in closets ■ The room smells musty ■ Eyes feel irritated ■ Children often cough ■ Condensation has appeared in the attic *For more details, please refer to the PDF document or feel free to contact us.

  • Ventilation system
  • Roof and gutter construction

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Experiment on the effect of using a ventilation system on indoor air conditioning electricity consumption.

The reduction rate is approximately 15% to 23%! We confirmed energy-saving effects by ventilating the attic.

This experiment examines the "effect of indoor air conditioning electricity consumption." By ventilating the attic, the reduction rate of electricity consumption during air conditioning operation on sunny days was approximately 15% to 23% (*), confirming the energy-saving effect. Additionally, a comparison of temperatures between the attic, indoors, and the human body using a thermotracer showed that with a ventilation system, the temperature of wooden components such as beams in the attic and the ceiling surface was lower, and the temperature difference indoors was reduced with height. *Varies depending on conditions and the air conditioner's capacity and efficiency. Air conditioning operation time: 16:00 to 22:00 for 6 hours. 【Results of the indoor air conditioning electricity consumption effect experiment】 ■ The reduction rate of electricity consumption during air conditioning operation was approximately 15% to 23% (on sunny days). ■ The energy-saving effect was confirmed. *For more details, please refer to the PDF document or feel free to contact us.

  • Ventilation system
  • Roof and gutter construction

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

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

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Corrosion prevention measures due to condensation in humid environments.

Measures against condensation in summer! Condensation and corrosion within wall structures are often difficult to detect.

In 2020, the "mandatory energy-saving standards for housing" are scheduled to be implemented, and it is expected that Japanese housing will increasingly aim for high airtightness and high insulation. However, at the same time, measures against condensation during the summer must be considered. In a site where glass wool was filled using the 2x4 construction method and a vapor barrier was installed on the interior side, significant corrosion due to condensation occurred. It is believed that the interior became hot and humid, leading to condensation as it was cooled by the air conditioner on the inside. The hold-down hardware also showed white mold, and if corrosion progresses like this, it will pose problems for the durability of the building. This type of summer condensation particularly occurs in regions with high temperatures and humidity, like Japan. Therefore, it is necessary to implement sufficient measures against winter-type condensation while simultaneously preventing summer-type condensation. *For more details, please refer to the PDF document or feel free to contact us.

  • Housing structure technology/long-term superior housing technology
  • Heat insulation and heat shielding methods

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Related catalog(7)

Attic Ventilation 'Kazenusuke'

Attic Ventilation 'Kazenusuke'

PRODUCT
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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"

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

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

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

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

TECHNICAL
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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]

TECHNICAL
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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."

OTHER
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Corrosion prevention measures against condensation in humid environments.

Corrosion prevention measures against condensation in humid environments.

TECHNICAL
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Aroma production at a nightclub in Yokosuka City / Aroma production for nightclubs and cabarets is by Majesta Fragrance!

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We have introduced Majesta Fragrance to a nightclub in Yokosuka City, Kanagawa Prefecture, creating a fragrant atmosphere throughout the floor. The model we have introduced is the "MF-02S," which costs 8,800 yen per month (tax included). The scent you have chosen this time is "Sabon," a high-quality soap fragrance reminiscent of luxury hotel amenities. Its clean and transparent refreshing scent spreads throughout the entire floor, warmly welcoming customers who visit. By introducing scent design to the nightclub, we can enhance the extraordinary experience and create a memorable space that lingers not only visually but also through "scent." Majesta Fragrance offers a rental service for commercial aroma diffusers, and we also provide a free trial installation. If you are interested in scent design, please feel free to contact us.

Aug 21, 2026

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[Media Coverage Information] Air Conditioning Times July 8, 2026 Issue

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In the July 8, 2026 issue of Air Conditioning Times, we featured "Flex Chamber" and "SS Premier" in a duct special.

Aug 21, 2026

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Winner of the Environmental and Equipment Design Award!

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SS Premier has won an award at the 24th Environmental and Equipment Design Awards. This award is organized by the General Incorporated Association of Architectural Equipment Comprehensive Association and recognizes outstanding efforts in environmental and equipment design. We will continue to strive for further improvements in quality and technology.

Aug 21, 2026

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The representative interview of b-search is now available in the "Vision Encyclopedia"!

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  • COMPANY

An interview article with Yoshinori Takada, President and CEO of bSearch Co., Ltd., has been published in the media "Vision Encyclopedia," which conveys the thoughts and backgrounds of business leaders. The article delves deeply into the background of transitioning from an ordinary student life to founding a company, as well as his unique winning pattern of "not pretending to be capable." It is filled with hints for achieving results in job hunting and work, so be sure to check it out! Vision Encyclopedia / bSearch Representative Interview - The Reason Why "Not Pretending to Be Capable" Leads to Trust This representative interview introduces a career story that will be useful for a wide range of people, from job seekers who want to know the tips for achieving results at work and those who truly want to meet companies that suit them, to companies and HR personnel looking to hire talented individuals and build strong organizations. You can find detailed insights on the perspective towards work in the interview article on "Vision Encyclopedia." ✨ ■ Check out the bSearch representative interview on "Vision Encyclopedia" here: https://vision-zukan.com/posts/bsearch/

Aug 21, 2026

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Risa Yoshiki has been appointed as the official ambassador of b-search Co., Ltd.!

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On July 1, 2026 (Wednesday), talent Risa Yoshiki has been appointed as the official ambassador of b-search Co., Ltd. We are pleased to announce the appointment of Risa Yoshiki, who is active in various fields such as television and magazines, as our official ambassador (effective July 1, 2026). With this ambassador appointment, we at b-search Co., Ltd. aim to deliver the best recruitment solutions to many companies struggling with hiring activities, while also strongly promoting the joy of taking on challenges in work and the appeal of new ways of working to job seekers considering career changes or employment. ■ Background of the official ambassador appointment In today's world, where the declining labor force due to low birth rates and an aging population is advancing, "acquiring and retaining talent" has become an extremely important management issue that affects corporate growth. What is required in future recruitment activities is not the traditional method of "simply posting job advertisements and waiting for applications." What is urgently needed now is "proactive recruitment," which involves partnering with companies as their "best No. 2" to consistently promote everything from the planning of recruitment strategies to the establishment of systems that yield results.

Aug 21, 2026

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