Joto-Vent System Overview

Joto-Vent System Overview

The Joto-Vent System consists of 2 or 3 parts depending on whether you have an adjoining garage. The Joto-Vent and the Joto-Vent Architectural-covering are always required and meet the minimum opening requirement of 1/8-inch (3.2 mm) in IRC's Section R408.2. The Joto-Vent Air-blocking is used to block the air when the crawl space is built next to the garage to eliminate contaminated air flow into the crawl space.

Joto-Vent
Joto-Vent
Architectural-covering
Architectural-covering
Air-blocking
Air-blocking
Click on each in the drawing below (or scroll down if you are using a mobile device) to see how each component is installed.
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Joto-Vent

The primary component of the Joto-Vent System is placed between the concrete foundation wall (2 x 6 or 2 x 8) and the wooden sill plate to provide natural airflow around and through the entire perimeter of the home’s crawl space.

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Joto-Vent
Architectural-covering

The Joto-Vent Architectural Covering acts as the cover for the Joto-Vent and the seat for the exterior wall sheathing.

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Architectural-covering
Air-blocking

Air-blocking is an optional accessory for the Joto-Vent System which is used to create an air barrier between the garage and the crawl space.

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Air-blocking
Joint Cover

One of the accessories used with Architectural-covering in order to connect them together at joint sections for convenience and aesthetic purposes.

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Joint Cover
Outside Corner

One of the accessories used with Architectural-covering in order to connect them together at outside corner sections for convenience and aesthetic purposes.

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Outside Corner
Inside Corner

One of the accessories used with Architectural-covering in order to connect them together at inside corner sections for convenience and aesthetic purposes.

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Inside Corner
Endcap

One of the accessories used with Architectural-covering in order to cap end sections for convenience and aesthetic purposes.

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Endcap

Find out how many of each part you will need for your home.

Joto-Vent System Calculator


The unique 2-part design of the Joto-Vent System® increases the value of your newly built home and provides solutions to current conventional vent box issues.

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