Geothermally heated crawl space air will melt the snow.

Joto-Vent is used in northern Japan, known for its heavy winter snowfall. This photo taken in Miyagi, Japan shows one example of the snow-melting effect. Relatively warm and stable air heated by geothermal heat flows in and out of the Joto-Vent, melting accumulated snow.

Keeping the crawl space dry by venting it sufficiently maximizes insulation performance and improves comfort in colder climate zone.

Joto-Vent System® uses geothermal updrafts, winds, and temperature, air pressure difference.

Warm air rises. Air pressure fluctuates with outdoor winds. And a temperature difference exists between the crawl space and the outdoors. The Joto-Vent System® combines these factors to provide efficient ventilation to the crawl space.

Proper insulation, and distance from perimeter is essential to prevent pipes to freeze.

Joto-Vent System® is an efficient way of venting the crawl space. We highly recommend that the pipes should be properly insulated all the way from the ground to the subfloor, layout at least 3 feet away from the perimeter foundation. Crawl space does not usually fall below freezing however closer to the perimeter is exposed to outdoor winds which can cause pipes to freeze.