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The YCS Vent Fan is code approved for continuous exhaust ventilation for unvented crawlspaces at a rate equal to 1 cubic foot per minute. The product is designed to meet the ICC residential code. Adjustable settings to the square footage of homes.
A) Interior Fan (installed inside crawl space and pushes air out)
B) Exterior Fan (installed outside with weather shield, pulls air out)
Size: 8” x 16”
Color: black
CRAWL SPACE VENTILATION SYSTEM / BUILDING FOUNDATION VENTILATION SYSTEM Patent #: 11753816
Everything You Need for Confident, Code-Compliant Installation



Every YCS product is supported by detailed documentation, training materials, and technical guidance to help contractors install with precision and confidence. Whether you’re reviewing specifications, accessing safety documentation, or preparing your team for installation, our resources ensure consistent, high-performance results on every project.