Shop Our Collection of Roof Vents

FAMCO Round Vent Base – Flat Roof (Side View)
Roof Vent BasesPlastic Roof Vent with 50 Sq. Inch Net Free Area in black.
Attic VentilationDiagonal front shot of FAMCO Bath/Kitchen Roof Vent with Extension in copper.
Piped Exhaust VentsRound Soffit / Under Eave Vent – Plastic – 6 inch - FAMCO
Soffit Vents

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Residential Use

Essential for providing superior airflow and clearance, ensuring moisture and heat are effectively vented even in low-slope roof conditions.

Commercial Use

Designed to control temperature and humidity levels in large spaces, from office buildings to warehouses, with attic spaces or roof cavities.

Product Highlights
  • Plastic Bath Fan/Kitchen Exhaust (Roof Vent with Stem)

    Made from high-density polyethylene (HDP) with UV inhibitors to protect against sun damage. It features a built-in damper to prevent backdraft, a removable ¼-inch screen to keep birds and insects out, and is available for 4-inch or 6-inch pipe sizes.

  • Round Vent Base (Flat Roof)

    Designed for mounting globe vents or other round-based roof vents without a flange. It features a large flange for easy installation, leak protection, and weather-proof construction.

  • Copper Bath Fan/Kitchen Exhaust (Roof Vent with Extension)

    Crafted for bathroom or kitchen exhaust venting systems. It features a built-in hinged damper to prevent backdraft, a removable ¼-inch screen to block birds and insects, and a 3-inch long pipe extension for connecting to flex tubing.

Roof Vents Installation Tips
  • Proper Placement

    Install as close as possible to the ridge of the roof, in accordance with local codes.

  • Vent Selection

    For attic roof vents, the choose must be based on the roofing material, climate, and specific ventilation needs. Options include plastic or metal vents, each offering unique benefits depending on the installation requirements.

  • Professional Installation

    While some vents may be installed, professional installation is recommended for complex systems or areas with challenging access.

Frequently Asked Questions

What is the primary purpose of roof vents?

Attic roof vents to promote attic ventilation by allowing hot, humid air to escape from the attic space. During the summer, roof vents help prevent heat buildup in the attic. In the winter, they regulate humidity levels, preventing moisture accumulation.

How do I choose the right roof vent for my needs?

To choose the right attic roof vent, consider factors like the size and design of the attic, the type of roofing material, and the specific ventilation needs. Additionally, assess whether the roof has a steep pitch or is flat, as this will influence the type of vent required for optimal airflow.

What warranty is provided with roof vents?

FAMCO attic roof vents come with a one-year limited warranty that covers defects in materials and workmanship. For specific warranty terms, including coverage details and registration instructions, contact our customer support team.

Learn More About Our Roof Vents

Roof Vents

Proper attic and roof ventilation is essential for extending roof life, regulating indoor temperatures, and preventing destructive heat and moisture buildup. FAMCO manufactures industry-leading roof ventilation solutions designed to deliver superior airflow control and reliable weather defense for residential and commercial roofing systems.

From heavy-duty galvanized steel and copper models to high-density UV-inhibited plastic options, FAMCO engineered products provide long-term protection against leaks, backdrafts, and pest intrusion. Whether you need to buy roof vents online for an attic air circulation system, a bathroom fan exhaust, or a kitchen range hood line, FAMCO delivers American-made craftsmanship built to perform.

Attic Ventilation and J-Vents

Creating a balanced airflow system across your attic space prevents winter ice dams and lowers summertime cooling costs. FAMCO offers a comprehensive lineup of static attic ventilation covers, including popular slanted-hood J-Vents and continuous-flow Globe Vents. Available in heavy-gauge galvanized steel, aluminum, copper, and durable painted finishes, these static vents provide optimized Net Free Area (NFA) to meet strict building code airflow requirements.

To complete the intake side of your attic ventilation system, combine roof exhaust caps with high-performance soffit vents. Balanced intake and exhaust airflow ensures continuous thermal regulation throughout the roof envelope.

Piped Exhaust Vents and Goose Necks

Dedicated exhaust vents require specialized roof terminations to effectively discharge moist, humid air from bathroom fans, kitchen range hoods, and indoor living spaces. FAMCO carries specialized piped exhaust roof vents equipped with built-in backdraft dampers, protective screens, and with or without pipe extensions for direct attachment to rigid ducting or flex tubing.

For applications requiring high clearance or heavy snow-load resistance, high-profile Goose Neck vents lift the exhaust termination well above the roofline. These heavy-duty vents release moist air efficiently without risking water intrusion during heavy storms.

Roof Vent Bases and Under-Eave Components

Mounting ventilation equipment on specialized deck profiles requires strong, watertight flashing foundations. FAMCO provides flat and pitched roof vent bases designed to mount round-based vents, globe caps, and custom duct penetrations securely to the roof deck. Featuring generous flange margins, these bases integrate seamlessly with asphalt shingles and flat roofing membranes.

Selecting pre-assembled roof vents with factory-sealed dampers, removable insect screens, and wide flashing collars minimizes installation time and guarantees long-term envelope integrity. Always ensure penetrations are properly sealed with roofing cement or flashing tape in accordance with local building codes.

The FAMCO Standard

Rely on FAMCO as your trusted manufacturer for high-performance roof vents, piped exhaust hoods, attic ventilation, and under-eave intake systems. Need technical assistance verifying Net Free Area requirements, duct stem sizing, or material compatibility for your project? Contact our ventilation specialists for expert guidance or request a quote for commercial or residential bulk orders. Installing FAMCO roof vents gives you total confidence in system airflow efficiency and long-term roofdeck defense.

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FAMCO Roof Vents Benefits

Energy Efficiency
Some roof, such as attic roof vents, can help lower indoor temperatures during the summer, reducing the strain on air conditioning systems.
Moisture Control
These ones prevent moisture buildup, helping to maintain a more consistent temperature and reduce heating costs.
Improved Air Quality
They also improve airflow throughout the attic to eliminate moisture and heat buildup.