Maxmizes Cross Ventilation
The Joto-Vent System® is a crawl space ventilation system utilizing natural air flow. Unlike the traditional crawl space vents, it allows maximum cross ventilation of air flow into the crawl space from the complete circumference of the building foundation, leaving NO dead air pockets in the entire crawl space.
Structural Integrity and Curb Appeal
With the combination of the Joto-Vent System® and it’s covering it will increase the lifespan of your house’s structure along with giving your house a nice clean finished architectural look.
This is accomplished by our continuous perimeter venting system that increases the cross ventilation keeping your crawl space nice and dry and the wood under your house moisture free.
Proven Track Record of Durability
The Joto-Vent System® has 45-year history in Japan with it being used on about 5.3 million residential homes (as of 2021) and counting. Nearly all houses being built with crawl space in Japan use this type of foundation vent system.
The Joto-Vent System® has been used in the US successfully since 2015, and well recognized by the building industry.
Inspired by Traditional Japanese Construction
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Japan’s housing design has evolved in response to frequent earthquakes and a climate of hot, humid summers and cold, dry winters. Traditional wooden post-and-beam construction emphasizes effective ventilation to enhance comfort while maintaining seismic resilience.
By allowing air to circulate through crawl spaces and attic areas, this approach keeps the wooden frame dry, helping to prevent decay, insect infestations, and wood rot. These principles form the foundation of the Joto-Vent System®.
Preventing Decay and Preserving Structural Integrity
The Joto-Vent System® is based on a traditional Japanese construction method that uses spacer members, known as neko, placed between the sill plate and the foundation to promote ventilation. While neko were historically made of hardwood or granite, the modern Joto-Vent System® uses advanced composite materials to enhance durability, precision, and ease of installation.
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Proven Performance in Japan, Trusted in the United States
The Joto-Vent System® has been the standard solution for crawl space ventilation in Japan for nearly 50 years and is used in the vast majority of homes with crawl spaces.
While newly introduced to the US market, the system has been successfully installed since 2015 and earned ICC-ES certification in 2019. Today, the Joto-Vent System® is recognized by the building industry as a reliable, performance-driven approach to crawl space ventilation.