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Manufacturer of Roof Vents, Attic Fans & Solar Fans

Exhaust Gravity Ventilator, An Aura Vent with Curb Mount Flange, Installed on a roof curb
Aura Vent with a Curb Mount Flange is easily installed onto a roof curb as an exhaust roof vent or a roof jack vent cap.

Aura Roof Vent, Mill (plain aluminum) Color, Installed on a Shingle Roof.
Aura Vents versatile and effective exhaust roof vent. Pictured here, installed on a pitched roof.

AVP’s roof vent lines make for excellent exhaust roof vents and air intake roof vents. The names of these lines are: Aura Vents, Round Back Vents, Keepa VentsPop Vents, Witches Hat and Universal Vents. AVP also supplies vents for a duct system. These lines are the Round Back Roof Jack Vent Caps for pitched roofs and Keepa Roof Jack Vent Caps for flat roofs. All roof jack vent caps come with a tailpipe adapter so that they can easily attach to rigid or flex duct. They are great for ventilating bathrooms, dryers, or other specialized roof jack applications.

What are Exhaust Roof Vents?

Roof exhaust vents allow for warm air from the attic below to pass through them so that heat and moisture go directly to the outside, leaving the building envelope drier and cooler. In order for roof exhaust vents to work efficiently they must be located at or near the roof peak since hot air rises.

There are many exhaust vents to choose from, that’s why AVP offers to assist it’s customers in deciding which exhaust vents are best for their roof ventilation project, especially since all roof vents are available with optional collar heights and Curb Mount Flange for when you need to install your roof vent on top of a roof curb: Aura Vents with Curb Mount Flange, Round Back Vents with Curb Mount Flange and Pop Vents with Curb Mount Flange for example.

Intake Pop Roof Vent with Curb Mount Flange Installed on a Roof Curb
Our Intake Pop Vent – Here a PV-20-C12.

Group of soffit vents, width of 10in.
Group of soffit vents, width of 10in.

Ventilation must be balanced, or air will not move. Exhaust roof vents are only half the picture.

What are Intake Roof Vents?

Intake roof vents are used to bring in cool, dry air near the lowest point of an attic. This creates an air flow. Gravity causes the warmer air to rise,  expelling the wetter and warmer air out of exhaust attic vents near the top of the roof.

Our Vent Calculator is the perfect tool to determine the number of intake and exhaust roof vents needed. Our intake roof vents include Round Back Vents, Keepa Vents, Pop Roof Vents, Universal Vents, and Soffit Vents.

These vent product lines are also available with Curb Mount Flanges, which facilitate installing the vents on a roof curb: Round Back Vents, Pop Vents,

Aura Attic Fan showing fan inside the Aura Fan.
A powerful motor is mounted inside the Aura Fan 14″ with 8″ collar. Product Page

14" Aura Attic Fan with Curb Mount Flange, showing internal fan superimposed.
The 14″ Aura Attic Fan with a Curb Mount Flange, designed for easy installation on a roof curb. Product Page

Our Aura Attic Fans (Sometimes referred to as “Power Vents“) use powerful fans to keep your attic ventilated in any season, day and night.

Our Aura vent head, used in our Aura Attic Fans, actively exhaust even when the fan is not turned on, due to the unique shape of the Aura vent head louver design. Even a small breeze is enough to activate the venturi effect, which creates a suction to draw air up and through the vent head.

12 Inch Diameter Aura Solar Attic Fan Close Up On Roof In Brown - ASF-12-C2-BR
Aura Solar Fan 12 inch, powder coated brown, installed on a shingled pitched roof.

8" Inch Diameter Round Back Solar Attic Fan With 2 Inch Collar In Black - RBSF-08-C2
8 inch Round Back Solar Fan powder coated black, installed on a shingled pitched roof.

The Aura Solar Attic Fan (Sometimes referred to as a “Solar Power Vent“) uses both solar and wind power for optimum ventilation performance, day and night.
The solar panel wattage is over-sized to the fans at a rate of 2 to 1. This results in Cubic Feet per Minute (CFM) production at angles up to 80 degrees. Even during evenings and cloudy days when the solar panel is not hit by sunlight, the inner and outer vertical louvers around the fan allow air to exhaust passively.

Aura Solar Attic Fans are also available with Curb Mount Flanges, ready to install on roof curbs. We also sell Round Back Solar Fans.

What are Roof Jack Vent Caps?

Roof Jacks are metal roof fixtures that have a tailpipe allowing connection to ducting for the venting of bathroom, kitchen, or other duct. Active Ventilation Product has two primary lines of Roof Jack Vent Caps, designed to be mounted on a flat or sloped roof. These are the Round Back Roof Jack Vent Caps which are generally used on residential, sloped roofs, and the Keepa Roof Jack Vent Caps often preferred for flat roofs in industrial or commercial structures.

Commercial Roof Jack - Keepa Ducted Roof Vent in White

Ventilation Systems Balance Intake and Exhaust

Intake Roof Vent and Exhaust Roof Vent Diagram on a Flat Roof
We are Experts in Balancing Exhaust and Intake in Ventilation Systems

Our Company Focus is Roof Vents and Roofing Ventilation.

Over 21 years experience using the forces of nature to help you ventilate. The following pages explain some ventilation systems, where all the components balance with each other, keeping attic spaces cool in the summer, dry in the winter.

Here is an article of a nearby installation of over 100 of our roof vents for a large commercial complex.

Martin Kolt President of AVP next to an installation in Teaneck, NJ - PVC roof

Martin Kolt standing next to the Pop Vent with a curb mount flange - installed on a wooden Roof Curb
This installation had pre-installed wooden roof curbs. This Pop Vent was installed in just a few minutes and this was done right before a major rainstorm.

( sales as of February 25, 2020)

February 2020 Best Selling Intake Roof Vent PV‑18‑C12‑CMF

Roof Louver for Air Intake - Pop Vent with Curb Mount Flange PV-12-C12-CMF-2
Roof Louver for Air Intake - Pop Vent with Curb Mount Flange PV-12-C12-CMF. Ideal air intake for industrial ventilation for large flat roofs.

February 2020 Best Selling Exhaust Gravity Roof Vent AV‑18‑C12‑CMF

Exhaust Gravity Ventilator Aura Vent with Curb Mount Flange AV-18-C12-CMF 18″ Diameter, 12″ Collar, Curb Mount Flange for Installation on a Roof Curb. Ideal for Flat Roof and large industrial ventilation.

February 2020 Best Selling PVC Aura Vent AV‑03‑PVC

PVC Aura Vent Cap AV-3-PVC-WT-1-e1525459005572
PVC Aura Vent Cap AV-3-PVC - Sized for mounting on Schedule 40 or Schedule 80 3" PVC Pipe.

February 2020 Best Selling Aura Vent (Flat Flange) AV‑12‑C12

Gravity Ventilator - Aura Ventilator AV-12-C12-angle
Gravity Ventilator - Aura Ventilator AV-12-C12-angle

Since Jan 1 2020 Best Selling Best Selling Intake Roof Vent PV‑18‑C12‑CMF

Roof Louver for Air Intake - Pop Vent with Curb Mount Flange PV-12-C12-CMF-2
Roof Louver for Air Intake - Pop Vent with Curb Mount Flange PV-12-C12-CMF. Ideal air intake for industrial ventilation for large flat roofs.

Since Jan 1 2020 Best Selling Exhaust Gravity Roof Vent AV‑18‑C12‑CMF

Exhaust Gravity Ventilator Aura Vent with Curb Mount Flange AV-18-C12-CMF 18″ Diameter, 12″ Collar, Curb Mount Flange for Installation on a Roof Curb. Ideal for Flat Roof and large industrial ventilation.

Since Jan 1 2020 Best Selling Aura Vent AV‑12‑C12

Gravity Ventilator - Aura Ventilator AV-12-C12-side
Gravity Ventilator - Aura Ventilator AV-12-C12

Since Jan 1 2020 Best Selling Static Vent Round Back Vent RBV‑08‑C02

Round Back Roof Vent on shingle roof, in black
Round Back Roof Vent on shingle roof, in black RBV-08-C02

Active Ventilation Brand

Roof Vents Logo - Active Ventilation ProductsFor 22 years we have focused our engineering and creative prowess to make the best roof vents possible.

The Active Ventilation brand includes over seven hundred models of roof vents, roof jacks, solar fans, roof curbs sold to homeowners, architects, engineers, contractors, roofers, distributors and OEM’s across the country and overseas.

Several categories of vents

Ethan Kolt – EVP of Active Ventilation Products with a company introduction

Since May 2019, Active Ventilation Products (AVP’s) president Martin Kolt has been presenting short videos describing the features and best practices for roof vents and roof vent accessories on AVP’s YouTube channel. At work, Martins role is to oversee factory and office operations. Martin also takes part in designing, prototyping, and engineering new products and new production methods. Martin has been instrumental in facilitating many of AVP’s roof vent lines to be evaluated and certified by Underwriter’s Laboratories, (UL) Texas Department of Insurance, and Florida State. Martin plans on releasing more short videos in the near future, so stay tuned.

Our Smallest Vent RBV‑03‑C02 - 3″ Round Back Vent

Static Vent Round Back RBV-03-C02
Static Vent Round Back RBV‑03‑C02

Roof Vent Sizes?

 Roof vents range in size from 3 inches to 48 inches in diameter, & collar heights (the neck of the vents) range from 1 inch to 12 inches in height. Roof vents are manufactured and engineered for every climate zone, and a wide range of residential, commercial, and industrial applications.

Static Vent Round Back RBV-3-C4-cutaway-and-measurements-cropped
Gravity Ventilator - Aura Ventilator AV-48-C08-cut-away-and-measurements

Our Largest Vent AV‑48‑C12‑CMF - 48″ Aura Vent with Curb Mount Flange

Gravity Ventilator - Aura Vent with Curb Mount Flange AV-48-C12-CMF
Gravity Ventilator - Aura Vent with Curb Mount Flange AV‑48‑C12‑CMF

Aura Ventilators, Pop Vents, Round Back Vents, Universal Vents & Keepa Vents are UL Certified

All roof vents effectively remove heat from under the roof directly to the outside on hot summer days and removes moisture from the attic on cold damp nights.

All roof vents carry Florida State Approval, California Wild File Certification, TDI, IBC Compliance and more. These roof vents will exceed your expectations.

Commercial Roof Vents & Industrial Roof Vents

AVP offers Commercial Roof Vents & Industrial Roof Vents that meet Architectural & Building Code specification

Roof Jacks Vent Caps

For Duct Ventilation

Our Roof Jacks are excellent for venting out a bathroom fan or other duct applications.
Made of rust free aluminum, with a 2 inch tail pipe (adapter) to fit existing duct work. The inner vertical louvers of the roof vents act as an insect screen, keeping out wildlife while allowing air to flow without resistance. Its superior design also rain and snow from entering, as the top is not open to the sky. Having a round design makes the vent aerodynamic, which allows it to deflect wind an objects carried by the wind. The low profile and round design of the residential roof jack vent cap is appealing to the eye and with various color options your home will look beautiful. The commercial roof jack vent cap has a standard 11 in. collar height, great for a flat roof install, especially in areas with high rain or snow fall.

The Universal Vent, a low profile off ridge roof vent, designed for steep sloped roofs that can be used for air intake vent and or exhaust.

This design looks great on a shingle roof & it can also be used on a a parapet wall that surrounds a flat roof. When used as an exhaust vent, it allows heat and moisture to escape on the upper portion of the roof, & when placed at the low portion of the roof, it can be used as an air intake vent, similar to a soffit vent.

Commercial Roof Vents & Industrial Roof Vents

Attic Ventilation – Air Intake Vents for Low Slope & Flat Roofs.

In order to exhaust air, you need intake air! Our line of intake roof vents allow your exhaust vents to work efficiently, by bringing in fresh air as your exhaust releases the hot air. All aluminum construction, these intake vents are maintenance free and will not rust! UL certified and tested to withstand wind pressure speeds up to 200 mph.

Residential or Commercial Soffit Venting

Our Soffit Vents are corrosion resistant because of its all aluminum construction. It is rust free and very durable (22 gauge – 0.025″ inch aluminum). The 1/8th inch opening between the louver blades will keep out insects, birds, and animals, thus allowing the air to move through the vent without resistance.

Retrofit Roof Vents & Fans

Leave the old vent base on the roof & replace it with a new roof vent cap or fan.

Our Retrofit Roof Vents are designed to fit on an existing base. Replace your old, worn and noisy vent heads! AVP’s all aluminum constructed Retrofit Roof Vents are silent, maintenance free and will not rust! Built to last and will fit on your existing bases. These vents exhaust heat and moisture from attic more efficiently, extending the life of your roof.

PVC Vent Caps & Fans

Exhaust & Intake PVC Pipe Caps for Schedule 40 & Schedule 80 Pipes.

Protect your PVC pipes. Used for commercial and residential applications, our PVC Vent Caps are a one piece spun lid made out of rust free aluminum. Great for exhausting gases and vapors. Its durable aluminum make can withstand harsh weather and wind forces of up to 200 mph. We have both static and solar fan varieties that will have a long lasting, clean appearance.

Commercial & Residential Attic Fans

Mechanical Roof Ventilation – Motorized Attic Fans for Plenums & Ducted Ventilation

Our Roof Exhaust Attic Fans are designed for efficiency and energy savings. Our line of Attic Fans exhaust continuously whether the electric motor is on or off. This is due to its vertical louver design, which allows air to exhaust using wind and without moving parts.

Residential Solar Attic Fans

Solar Powered Exhaust Fans – For releasing the summer heat.

Our solar fans use both solar and wind power for maximized energy savings. Our Solar Attic Fans work under direct sunlight to exhaust heat from attic spaces during the summer. They operate very quietly and have a compact design.

Commercial Solar Attic Fans

Solar Powered Ventilation – For Flat Roofs Needing Added Ventilation & Ducted Ventilation.

Our Solar Fans are designed to exhaust hot air whether the fan is on or off because of its inner louver design. Made with rust free aluminum, we have a wide selection of diameters and collar heights to suit your needs. Our solar panels produce Cubic Feet Per Minute (CFM) at angles up to 80 degrees.

AVP manufactures Mobile Home Roofing Products specifically for HUD, FEMA & Modular Builders. Dave Carter & Associates, AVP’s National Distributor has launched AVP’s money saving products to the market and as a result AVP is experiencing phenomenal growth.

Why Install Roof Vents? (Frequently Asked Questions)

What is roof or attic ventilation?

The goal of roof ventilation is to provide a means of allowing outside air to enter and exit attics and ventilated spaces, so that heat and moisture can leave the building envelope.

What is a roof vent?

A roof vent is an engineered structure that is typically rigid and has two primary functions. First, to allow air to travel through it, and second to prevent insects, rain, snow and any wind-blown debris (including burning embers) from passing through it.

What is a roof vent used for?

Roof vents are used for the purpose of air intake and air exhaust. Having vents of both types installed is required by IBC International Building Code and all local municipalities for steep slope roofs.

What are (air) intake roof vents?

Air intake vents are used to allow outside air to enter into attics. Intake vents should be located low on the roof, or along the lowest eave or soffit of the roof assembly. Intake vents are best when used in conjunction with roof exhaust vents.

(Source: NRCA)

Below are names and pictures of commonly used air intake vents:

  • Off ridge vents
Rendering of UV-45 Universal vents on a shingle roof
  • Individual soffit vents
Group of soffit vents, width of 10in.
  • Roof Louver
Roof Louver - Pop Vent for Exhaust PV-14-C1-Brown
  • Static Vents are non-motorized roof vents
Roof Vents Survive Hurricane Hermine in Florida
  • Passive Vents are non-motorized vents
Installed Aura Vent Metal Roof

Common problem with soffit vents (most popular air intake design)

All intake vents should be installed on the low end of the roof or under the eaves. Since soffit vent are installed under the eaves they run the risk of being blocked off on the interior side of the vent by attic insulation. This problem can be averted by doing a visual inspection of the attic from the inside to make sure that all soffit vents are not blocked off by insulation, storage items and or other materials.  original image

Another way to avoid soffit vents from being blocked is to install baffles. Baffles are placed between rafters keeping insulation from blocking air from the soffit vent below.  original image

In general intake vents should be designed and installed to prevent precipitation, animals and insects from entering the attic space.

NRCA does not recommend the use of drip edge vents as intake vents in northern climates where there is a likelihood of ice damming.

(Source: NRCA)


What is roof ventilation (for steep slope)?

Proper roof ventilation consists of air intake at low points and air exhaust on the high points of the roof. This design system works off of nature’s thermal dynamic, a process called Diurnal Convection original image

(Source: ResearchGate)

Below are some common types of roof exhaust vents:

Static Vents: Are roof vents that are non-motorized vents can be used as a roof exhaust vents or roof intake vents depending where on the roof they are installed. For roof exhaust they are placed near the peak of the roof and for intake they are placed on the lower portion of the roof.
Below are pictures of common static roof vents also called passive roof vents and gravity roof vents.  original image 

quality roof vents on a metal shingle install
Aura roof ventilator installed on a sloped shingle roof

Turbine Vents: Turbine vents and other similar vents rely on wind to rotate the turbine’s fan blades. The spinning of the blades by design rotate to keep out rain and snow, not to expedite the ventilation capacity like may people believe. (Source: NRCA)
Read our article comparing the typical turbine vent to our Aura Ventilator!

Turbine vs Aura Vent - Aura Vents Vs Turbines

Roof Vents designed, engineered and assembled in the U.S.A.