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PreVent Ventilators


ventilation system, vent, vents, ventilation

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PreVent ventilators from Metallic Products meet the highest design requirements and specifications, and encourage healthy airflow inside your metal building. Their eave and ridge/hip components create an efficient, maintenance-free roof ventilation system and, in addition to being low-cost and easy to install, PreVents have no moving parts to wear out.

A Metallic Products prevent ventilator is energy efficient, architecturally attractive and adaptive to many different roofing systems. It provides leak- and snow-proof ventilation and even protects against wind-driven rain infiltration. The prevent ventilator is a worthwhile investment to help improve airflow, ensure maximum comfort and better protect your metal buildings.

About Our PreVent Ventilators

Standard Sizes

Standard 10′ sections. PreVents can be installed as a single unit, or butted together to form a continuous run.


Made from 16-, 18- or 24-gauge Galvalume. Features Cobra® Ridge Vent material — a maintenance-free, lightweight, polyester composite product that won’t dent, crack or rust.


Designed to work in conjunction with standard closures and ridge caps. Designed for eave or ridge venting and can be custom formed to fit. Features a series of die-cut slots the entire length, allowing 14 square inches of free area per linear foot.