High Tunnel Greenhouse Vent for Framed Installation

High Tunnel Greenhouse Vent with Opener – Framed Installation
Supplemental Roof Ventilation for High Tunnels & Rigid Greenhouse Structures

Keep hot air moving out of your growing structure with the Ken-Bar High Tunnel Greenhouse Vent for Framed Installation. Designed specifically for rigid framed structures that do not use polyethylene film, this end-wall ventilation system provides supplemental airflow when rolling up the sides and opening doors aren't enough.

Installed high on the structure, the vent helps create a natural chimney effect, allowing hot air to escape through the upper portion of the tunnel. This can improve air movement during extremely hot and humid weather, helping provide a more favorable growing environment.

Important: These vents are intended for supplemental ventilation only and are not the primary method of temperature control for high tunnels.

Designed for Framed Installation

Unlike standard high tunnel vents designed for polyethylene-covered structures, this model is built for installation directly into a rigid framed opening.

Each vent features a perimeter mounting flange with pre-drilled holes, making it easier to fasten the vent securely to the structure using appropriate mounting hardware.

Automatic or Manual Vent Operation

Each High Tunnel Vent includes two activation options:

Automatic Temperature Control
The included temperature-sensitive opener automatically activates based on temperature and can be adjusted to open between 60°F and 77°F. The automatic opener can also be quickly detached when manual operation or removal is desired.

Manual Operation
A simple pull-cable mechanism provides manual control when you want to open or close the vent yourself.

Built for Greenhouse Ventilation

The vent is constructed with a rigid, lightweight aluminum frame and shutter, providing a durable solution for supplemental ventilation in high tunnels and rigid greenhouse structures.

Installing the vent near the roof or peak takes advantage of the natural tendency of hot air to rise, helping move accumulated heat out of the structure.

Product Features
Installation: Framed structures
Construction: Lightweight aluminum frame and shutter
Automatic opener: Included
Automatic temperature range: Adjustable from 60°F–77°F
Manual operation: Pull cable
Mounting: Perimeter flange with pre-drilled mounting holes
Designed for supplemental high tunnel ventilation
Suitable for rigid structures without polyethylene covering
Ideal for Hot & Humid Growing Conditions

High tunnels are commonly ventilated by rolling up the sides and opening end doors during moderate weather. When temperatures and humidity become extreme, however, additional ventilation may be needed.

A roof-level or upper-wall vent provides an additional escape path for rising hot air, making this High Tunnel Vent a useful addition to:

Rigid-frame high tunnels
Framed greenhouse structures
End-wall ventilation systems
Hobby and commercial greenhouses
Vegetable-growing tunnels
Nursery structures
Structures requiring supplemental peak ventilation
Hot-weather greenhouse ventilation
Framed Installation vs. Polyethylene Structures

This model is specifically designed for framed installation into rigid structures and includes a mounting flange for fastening to a framed opening.

Looking for a vent designed for polyethylene film structures? Shop our models specifically designed for installation into polyethylene-covered high tunnels.

Supplemental Ventilation, Made Simple

Add automatic or manual ventilation to your high tunnel with a durable aluminum vent designed to release rising hot air when additional airflow is needed. With its adjustable temperature opener, manual pull cable, and framed mounting flange, the Ken-Bar High Tunnel Vent provides a practical way to enhance ventilation during hot growing conditions.