Under the floor and in the attic... "Invisible spaces" are being reconsidered now The environment surrounding the housing industry has changed significantly in recent years. Rising timber prices, increased costs of equipment, a shortage of skilled workers, and prolonged delivery times are not temporary changes but are becoming entrenched as structural changes in the entire housing industry. Furthermore, in recent years, the global surge in resource prices, the depreciation of the yen, and rising logistics costs have compounded the situation, leading to a generally unstable environment for housing-related materials. What was once taken for granted—that "necessary materials can be obtained immediately when needed"—is no longer a given. Additionally, the construction and equipment industries continue to face a serious labor shortage. In particular, the aging of veteran craftsmen who support the field is progressing year by year, while securing young talent is not easy. As a result, situations such as difficulty in scheduling construction dates, longer waiting periods until construction, and limited availability of contractors in certain regions are increasingly common nationwide. In the housing industry, there is a growing sentiment that "construction plans cannot be made with the same sense as before," whether for new builds or renovations, which is becoming the norm across the country. For more details, please be sure to read the 【related materials】【related links】 below. ↓ ↓ ↓

In this renewal, we have completely revamped the structure and design to deliver clearer and more specialized information. 【Main Changes】 - Optimized the TOP page from the end-user perspective, allowing intuitive access to necessary information. - Established a neutral "Living Environment Lab" for both users and businesses to share insights related to living environments. - Added a "note" as the president's NEWS to make the company's thoughts and initiatives more accessible. - Updated the product logo to symbolize technical expertise, advancement, and professionalism, serving as the "face of the company." 【Planned Future Changes】 - Restructuring the landing page "Underfloor and Attic Ventilation Consultation Room" to strengthen the problem-solving pathway. We will continue to provide information and value focused on the future of living environments. Please take a look at the new SEIHO-WEB.

■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

We highly recommend that customers who have already installed moisture control materials (such as bamboo charcoal) consider adding a subfloor ventilation fan. We will compare and verify the moisture control effects/performance of using only subfloor moisture control agents (bamboo charcoal) versus using both subfloor moisture control agents and mechanical ventilation through moisture absorption and desorption tests. *The operation time of the ventilation fan is under desorption conditions. By adding a ventilation fan to the subfloor where bamboo charcoal mats are installed, we confirmed improvements in ventilation and airflow effects, leading to enhanced moisture absorption and release efficiency of the bamboo charcoal mats and reduced drying time. Additionally, it is expected that the combined use of the ventilation fan will further improve moisture control performance, leading to a decrease in subfloor humidity and enhanced drying effects on wood moisture content. Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓

Regarding the "Automatic Stop Function after 10 Years" Automatic stop has been implemented in products manufactured from 2015 onwards. ■ Overview of Inspection Period Notification Function The dedicated controllers and timers for underfloor and attic ventilation fans sold since 2015 are equipped with the safety function mentioned on the left. Starting from November 2025, the automatic stop function will be activated sequentially for products manufactured in 2015. ■ Response Procedure at the Time of Automatic Stop It is expected that customers will contact the sales and installation stores. We ask that sales and installation stores respond according to the following procedures: 1. Conduct a safety inspection based on the "Underfloor and Attic Ventilation Fan Inspection Checklist." * Please ensure to check for looseness and retighten the connections of the controller and timer. If any liquids such as water, oil, or detergent have come into contact, the internal components may corrode, leading to fire hazards; therefore, replacement of the main unit is necessary. 2. If there are no issues, press and hold the set button to restart the operation. ■ Start of Shipment for Controllers/Timers with Inspection Period Notification Function For details regarding the shipment history of timers, please contact our company’s sales representative or quality control department.

This is a report on the inspection results after approximately two and a half years of using the Dry Pro Type-C in the newly added crawl space (foundation packing method) during the renovation. The inspection results showed that there was no dust or other substances adhering to the heat dissipation fins of the dehumidifier, the dehumidifying fins, the intake of the blower, or the fan that could negatively affect performance. Additionally, there were no foreign substances or dust adhering to the drain hose for dehumidified water or the pump tank that could adversely impact performance, and all components were functioning normally. (Photo: Heat dissipation fins of the dehumidifier) The newly added crawl space was located on the north side in a poorly ventilated area, but no signs of mold or condensation were observed, confirming that a dry state was maintained. (Photo: Installation status) Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓

It's concerning when your child has to stay home alone. In such cases, the self-monitoring security system Life Defense protects your child with its "home security" feature. The operation is simple enough for even small children to use. Additionally, by using an optional internet camera, you can view the inside of the room and communicate through your smartphone. (An internet connection is required at the installation location of the internet camera.) 【Table of Contents】 1. Peace of Mind When at Home: "Home Security Function" ~ When your child is home alone, the home security is active. ~ ~ Even when you're at home, burglars may be targeting you. ~ 2. Emergency Notification Function for When You Feel Anxious ~ With one push, you can alert your guardians in case of an emergency. ~ 3. Summary ~ Child Monitoring Features (Home Security + Emergency Notification) ~ ✅ Home Security Function ✅ Internet Camera (Optional) ✅ Emergency Notification Function ✅ Points Please be sure to read the 【related materials】【related links】. ↓ ↓ ↓

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】. ↓ ↓ ↓

In homes where "flooding under the floor" has occurred due to heavy rain, various damages and risks of secondary damage may be lurking in unseen areas. To protect the durability of the house and the health of the family, we have organized the points that should be prioritized for inspection and action. 【Table of Contents】 1. Why is inspecting under the floor essential? 2. 【Emergency Checkpoints】First, check here! A. Presence of flooding or moisture B. Condition of the wood C. Presence of unusual odors D. Signs of termites or pests E. Condition of ventilation openings 3. Immediate response methods when damage is discovered - Mild situations with little standing water or moisture - - Situations with standing water where structural impact is a concern - The damage from flooding under and above the floor due to heavy rain requires significant recovery efforts, including cleanup. We sincerely sympathize with those who have been affected. Please be sure to read the 【related materials】【related links】. ↓ ↓ ↓

Some of you may be hesitant about introducing the effective equipment for pest control under the floor and preventing foundation deterioration (moisture control), known as "underfloor ventilation fans." Why is ventilation under the floor necessary? We have created a page that clearly summarizes the effects of forced ventilation and installation. Under the floor, a certain area of openings is required by the Building Standards Act. In other words, it mandates that there must be a ventilation opening of a certain size for moisture control under the floor. However, when looking at actual single-family homes, there are always ventilation openings, whether they are square grilles or full-perimeter ventilation with foundation packing methods. In recent years, homes using foundation insulation methods (especially in northern regions like Hokkaido) have also been built, but in this method, the underfloor is connected to the interior, and the underfloor is considered part of the interior, so there are no ventilation openings under the floor to prioritize insulation effectiveness. The adoption rate of foundation insulation methods is still low, but moisture issues are not nonexistent. I would like to touch on this topic on another occasion. Please be sure to read the 【related materials】【related links】. ↓ ↓ ↓

The Importance of Customer Management The decline in population due to the aging society and low birthrate has become a social issue, affecting the consumption activities of the public. How can we overcome this? Acquiring new customers is important. At the same time, maintaining relationships with customers that we have worked hard to acquire is arguably even more important. This is because connecting with new customers (business development) incurs the highest costs for a company. If existing customers are satisfied and continue to purchase various products and services, contributing to the company's revenue, it will reduce the costs needed for acquiring new customers, or allow for more investment in business development. Our company has been focusing on the utilization of items aimed at strengthening customer touchpoints, while experimenting and refining our approach. This time, we will organize and present the details of that effort.

"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]. ↓ ↓ ↓

The reason the air conditioning isn't working well might be due to the roof. With the ongoing extreme heat, it's easy to lower the air conditioning temperature, but the causes of "not cooling" and "high electricity bills" may actually lie in the "attic." Japan's summers are becoming increasingly severe each year, and many households are likely struggling with the heat, especially on the second floor. In fact, the source of that heat is the heat trapped in the "attic." [Table of Contents] ■ The attic can get as hot as nearly 70°C in midsummer! ■ First, let the "heat in the attic" escape outside! ■ You can feel the effects at night! ■ Installation takes just one day; now is the chance before summer hits full swing! ■ This summer, let's start with "attic ventilation." Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓

【2024's Scorching Heat】The Heat in Your Home Might Actually Be Caused by the "Attic"? Japan's summers are becoming increasingly severe year by year. In 2024, we are expecting record-breaking heat, and indoor heatstroke and dependence on air conditioning have become serious issues. This is especially noticeable in two-story homes, where the temperature rise on the second floor is significant, and it doesn't cool down easily even at night. One of the causes is the heat trapped in the "attic." Due to the sun's heat beating down on the roof, the attic temperature can reach nearly 70°C even when the outside temperature is 35°C! 【Table of Contents】 ■ The reason your indoor temperature isn't dropping might be the "attic." ■ Therefore! For indoor heat countermeasures, try 'Kaze no Suke 24.' ■ Stay cool and quiet even while sleeping. ■ Be aware of the most overlooked "source of heat" in your home. ■ This summer, let's start with "attic ventilation" rather than windows. Please be sure to read the 【related materials】【related links】 below. ↓ ↓ ↓

Introduction to the Bosch concrete detector (Model No.: D-TECT150CNT). This product can detect the position of rebar in concrete foundations. It has high accuracy and can detect both depth and vertical/horizontal dimensions. When drilling holes in concrete foundations as a post-processing step, having such a detector is convenient. (Although the list price is relatively high, it can be purchased at a relatively low price online.) 【Features】 - Capable of detecting the position of rebar in concrete foundations - High precision - Can detect both depth and vertical/horizontal dimensions - Convenient for drilling holes in concrete foundations as a post-processing step

We exhibited at the largest housing exhibition in Okinawa, the "Okinawa Total Living Show," held from October 19 (Friday) to 21 (Sunday). At this exhibition, we introduced our new product, the "Underfloor Electronic Dehumidifying Ventilation Unit Dry Pro," for the first time. We also showcased other products such as the "Underfloor and Attic Ventilation System." Many people stopped by, allowing us to provide explanations. Thank you very much.

On September 8th (Saturday) and September 9th (Sunday), we exhibited at the "Kappa Market," a comprehensive autumn exhibition and business meeting hosted by Kanekyu Co., Ltd. At this exhibition, we introduced our "Self-Security Type Security System" and "Ventilation System." Thank you for visiting.

In November 2014, a special discussion was held at the headquarters of Seihou Products Co., Ltd. with Professor Takashi Sugai from the Department of Architecture at Fukuoka University, the company's President Ryuya Oishi, and Chief of the Technology Development Department Tadaharu Yoshitani. During the discussion, they talked about the current state of attics in Japanese houses, the dangers of "decay fungi" that undermine the strength of wood, the occurrence of mold in attics, and the importance of moisture and condensation measures as well as ventilation in attics. [Discussion Content] <On moisture and condensation measures in attics, and the importance of ventilation> ■ The current state of attics in Japanese houses ■ The greatest fear is "decay fungi" that undermine the strength of wood ■ On the occurrence of mold in attics ■ Moisture prevention measures in attics are difficult ■ It is important to force ventilation in attics