Underfloor Ventilation Series "Turbine Unit Type Bi"

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, this automatic stop function will be activated sequentially for products manufactured in 2015. ■ Response Procedure at the Time of Automatic Stop It is anticipated that customers will contact the sales and installation stores. We ask that the sales and installation stores respond according to the following steps: 1. Conduct a safety inspection based on the "Underfloor and Attic Ventilation Fan Inspection Checklist." * Please be sure 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 ignition or fire, necessitating the replacement of the main unit. 2. If there are no issues, press and hold the set button to restart operation. ■ Start of Shipment for Controllers/Timers with Inspection Period Notification Function For details regarding the shipment history of timers, please contact our company: your sales representative or the Quality Control Department.

In homes where "flooding under the floor" has occurred due to heavy rain, various damages and risks of secondary damage are 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 upon discovering damage - Mild situations with little water pooling or moisture - - Situations with water pooling and concerns about structural impact - The damage from flooding under and above the floor due to heavy rain requires significant recovery efforts, including cleanup. We extend our heartfelt sympathies to all those affected. Please be sure to read the 【related materials】【related links】. ↓ ↓ ↓

"Because it's an invisible place, we won't overlook it." Japan's climate is characterized by high temperatures and humidity, and particularly after typhoons and heavy rains, the conditions can be harsh for homes. It's not just the roofs 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 for under the floor" that should be confirmed after a typhoon or heavy rain, the "responses" if abnormalities are found, and measures for preventing recurrence. [Table of Contents] ■ Why is underfloor checking 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]. ↓ ↓ ↓

Some of you may be wondering whether to introduce the effective equipment "underfloor ventilation fan" for pest control under the floor and to prevent the deterioration of the foundation (moisture control). Why is ventilation under the floor necessary? We have created a page that clearly summarizes the effects of forced ventilation and installation. The area of openings required under the floor is specified by the Building Standards Act. In short, this means that you must provide a certain area of ventilation openings for moisture control under the floor. However, when looking at single-family homes, you will find that there are always ventilation openings, whether they are square grilles or full-perimeter ventilation foundation packing methods, although the types may differ. In recent years, homes with foundation insulation methods (especially in northern regions like Hokkaido) have also been built, but in this foundation insulation 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 the foundation insulation method is still low, but moisture issues are not nonexistent. I would like to touch on this at another opportunity. Please be sure to read the 【related materials】 and 【related links】. ↓ ↓ ↓