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IVENT ROTO ATTIC 8" OBLONG – Active Attic Roof Exhaust - Shingles, Slate, or Shakes installation
Roofivent
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iVent ROTO ATTIC 8" The ultimate top-of-the-line of attic ventilation solutions. This advanced active exhaust ventilation system features a wind-powered turbine constructed from unique polypropylene, engineered to deliver reliable airflow in your attic. It effectively maintains optimal temperature and moisture levels, preventing issues such as mold, growth and ice dam formation. Combining innovation and efficiency, iVent ROTO offers unrivaled functionality, durability, and easy installation.
Designed Installation Base for shingles, slate, or shakes feature a 3,1/2" wide flange with backwater ribs for reliable incorporation and connection with roofing.
Key Benefits:
Easy Installation and Maintenance:
Peace of Mind:
ATTIC VENTILATION PERFORMANCE :
1 unit iVent ROTO provides an impressive 650 sq. ft. of Attic Floor Space Area balanced with 156 sq. in. of intake, adhering to the 1/300 attic ventilation ratio.
According to the 2012 International Residential Building Code (IRC), Section R806 – Roof Ventilation: The minimum net free ventilating area must be 1/150 of the vented space.
However, a ratio of 1/300 is commonly used when specific conditions are met, such as installing a Class I or II vapor retarder in certain climate zones 6, 7, 8. Or at least 40 percent and not more than 50 percent of the required ventilating area is provided by ventilators located in the upper portion of the attic or rafter space.
For optimal compliance, if your local code requires a ventilation ratio of 1/150, simply double the request.

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IVENT ROTO ATTIC 8" OBLONG – Active Attic Roof Exhaust - Shingles, Slate, or Shakes installation