Underfloor ventilation: An important point for the health of your home and family.

Is your underfloor okay? With "Fuutarou," you can prevent condensation and extend the lifespan of your building!

The indoor humidity is visible as condensation, so by opening windows or using exhaust fans, the trapped moisture can be expelled outdoors. But did you know that there is also a lot of this moisture under the floor? Modern homes have achieved excellent comfort through high airtightness and high insulation. However, as the structural reinforcement of the foundation has progressed, the crawl space has become lower and the layout more complex, making ventilation under the floor more difficult. If you only check one of the items below, it does not mean you can relax. If any one applies, it is a warning signal for your home. 【Let’s check together】 ■ When you open the underfloor storage or tatami mats, there is a musty smell. ■ There are black stains on the walls near the closet or dresser. ■ There is always condensation dripping at the bottom of the windows or window sills. ■ The tatami feels damp and spongy. ■ The floor creaks, or you occasionally see winged ants in places like the bathroom. ■ You often get bitten by mites. ■ The floorboards feel sticky. ■ The cloth foundation is always damp or has moss growing on it. ■ There are cracks in the cloth foundation. *For more details, please refer to the PDF document or feel free to contact us.

Ventilation and Exhaust