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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

Related product

キャプチャ.PNG

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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[Please introduce this to the management and general affairs department] Update on the expense reimbursement system implementation case! The input and verification work for FB data that used to take 2-3 hours is now completed in just 5 minutes!

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  • OTHER

An article has been published about the case of introducing the expense reimbursement system "Rakuraku Seisan" at TSP Corporation. ~ In the case of TSP ~ Before the introduction, there were challenges such as dealing with the "paper" sent from various locations and the reliance on specific individuals for the tasks. After the introduction, the input and checking of FB data, which used to take 2 to 3 hours, can now be completed in just 5 minutes. Additionally, the mindset of the accounting department, which was previously reliant on manual entry, has changed. [Case Overview] ■ Challenges before introduction - Dealing with "paper" sent from various locations, reliance on specific individuals ■ Key points of introduction - A robust support system for setup and operation - Easy to start from a small scale both financially and functionally *For more details, please refer to the related links or feel free to contact us.

Jul 02, 2026

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We have released the document 'Half a year of slacking vs. full operation in 3 months - Conditions for companies that should use initial setup support!'

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  • CATALOG

We have published a white paper titled "Half a Year of Procrastination vs. Full Operation in 3 Months - Conditions for Companies That Should Use Initial Setup Support," aimed at companies considering the introduction and operation of attendance management systems. This document clearly explains the key points of initial setup that are prone to difficulties during implementation, as well as the differences between handling it in-house and utilizing specialized support. If you want to smoothly launch an attendance management system, please take a look.

Jul 01, 2026

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Summer Grand Thanksgiving Festival 2026

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  • EVENT

From July 2026 until the end of September, we will hold a Summer Grand Appreciation Festival! High-pressure washers at great prices! Plan 1: A special set of SP60L/60new/60DX/60GE comes with a free Z swivel joint set! Plan 2: Customers who purchase a compressor will receive a new red hose (30m) for free! Plan 3: Washing hose [6M] available at a special price! A wide range of popular high-pressure washer series, cleaning accessories, painting machines, compressors, and other products are also available! Items listed can be purchased at great deals! Don't miss this opportunity!

Jul 01, 2026

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Notice of Envu Ant Bait Certification Renewal

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(Japan) Termite Control Association Hachikusan FL No. 3359 (Japan) Termite Control Association Hachikusan MC No. 3511 The update from July 1, 2026, is now available.

Jul 01, 2026

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[Please be sure to introduce this to the management and general affairs department] Update on the introduction case of the attendance management system! With the thorough support of our sales representatives, you can rest assured about the configuration changes tailored to your regulations.

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  • OTHER

An article has been published regarding the case of introducing the attendance management system "KING OF TIME" to G.C. Planning Co., Ltd. ~ In the case of G.C. Planning ~ The previous attendance management system had the challenge of making it difficult to check attendance in compliance with laws and regulations. The decision to implement was based on top-class implementation achievements and the unique support system of the agency, i Business Partners. Although there were moments that felt challenging during the implementation and operation, we resolved each issue by consulting with the sales representatives of iBP. [Case Overview] ■ Challenges before implementation - The previous attendance management system made it difficult to check attendance in compliance with laws and regulations. ■ Key points of implementation - Top-class implementation achievements and the unique support system of the agency, i Business Partners. *For more details, please refer to the related links or feel free to contact us.

Jun 30, 2026

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