Greenhouse Curtains and Vents

Advancing Alternatives’ greenhouse curtains and vents allow for natural air movement across the width of your entire greenhouse. As the width is the shortest dimension, the new air will heat up less than air moving along the entire length of a greenhouse (as is common with mechanical systems).

Sidewall curtain ventilation is also vital to the efficiency of roof ventilation systems. When the operation is managed by one of our greenhouse vent controllers, a new level of quality control is built into your operation without even lifting a finger.

Environmental Control with Natural Ventilation

The natural ventilation provided by our curtain systems serves four crucial horticultural functions: temperature control, improved air circulation, humidity control, and CO2/oxygen replacement.

Greenhouses accept and trap solar radiation, thereby raising the temperature in the environment. High temperatures can be detrimental to plant growth and/or plant health. Our natural ventilation systems provide a means to exhaust excess heat from your greenhouse.

Plants benefit from breezes in terms of transpiration and cell wall strengthening. Air moving and blending throughout a greenhouse balances temperatures, humidity, CO2, and oxygen. Thus, creating uniform conditions, which plants respond to better.

Without adequate ventilation, the humidity will build up in a greenhouse. The transpiration of plants naturally increases humidity levels, as does the inherent condensation occurring within a thermally dynamic structure. High humidity levels in a greenhouse invite pathogens, molds, and fungi that can interfere with plant growth. Humidity control can be automated by using a curtain ventilation system.

Lastly, fresh air provides the CO2 that is critical for photosynthesis and the oxygen required for root growth. The introduction of fresh air and the exhaustion of stale air, achieved by a well-ventilated greenhouse, increase the health and quality of your greenhouse crop.

Ready to explore our curtain ventilation options? Request a quote today!

Showing 1–24 of 44 results

AegisTEC+ Greenhouse Controller

$2,050.00
Single or Dual zone option, touchscreen, thermostatic / timed management with heating and cooling outputs Sensor information can be found below, under "Features"

VCU2-24 Environmental Controller

$1,050.00
The VCU 2-24 Environmental Controller is a single zone, thermostatic controller for greenhouse heating and cooling. Featuring a user friendly

Single Output, Internal Brake

$125.00$373.00
Manual operator with a 1/2″ square adapter slot and guide wheels. Choose from hand or drill powered and easy rolling

Dual Output, Internal Brake

$185.00$405.00
Dual output, manual operator with a 1/2″ square adapter slot and guide wheels.

Single Output, Hand Brake

$250.00$300.00
Manual operator with 0.625″ output shaft, guide wheels and handle that serves as a brake

Roll Bar Adapters

$15.00$120.00
Roll Bar Adapters that provide the means to couple your roll bar to the gear crank or motor of your

LVM60 Greenhouse Curtain Motor

$375.00$410.00
Single output, low voltage, DC motor Interchangeable guide wheel set to switch between Left and Right Output Add an adapter for your roll bar by clicking through the options below!

LVM100 Greenhouse Curtain Motor

$425.00$460.00
Single output, low voltage, DC motor Interchangeable guide wheel set to switch between Left and Right Output Add an adapter for your roll bar by clicking through the options below!

Louver Linear actuator Package 12″

$145.00
Linear actuator package, 24 volt dc, 12″ stroke. w/mounting and louver attachment hardware

Gear Chain Wheel Crank 10:1 For Sidewall Curtains

$375.00
Gear Chain Wheel Assembly 10:1 ratio, 2 directional 5/8″ output shafts w/ 4 wheel guide assembly, 26′ chain and chain

Stationary Gear Chain Wheel Crank 10:1 for Roof Vents

$375.00
Gear Chain Wheel Assembly 10:1 ratio, Stationary Mount – 2 directional 5/8″ output shafts w/ 26′ chain and bracket. (Order

Stationary Gear Chain Wheel Crank 15:1 for Roof Vents

$375.00
Gear Chain Wheel Assembly 15:1 ratio, Stationary Mount – 1/2 x 1/2 square output w/ 26′ chain and keeper (Order

Guide Pipe Hardware

$14.00
Guide Pipe Hardware Assembly for securing guide pipe to structure or guide pipe extension; bolts, nuts, chain links

48″ Manual Gear Crank 7:1 Gear Box

$225.00
48″ Manual Gear Crank, w/ 7:1 gear box & hand crank (max 500 SF curtain material)

96″ Manual Gear Crank 7:1 Gear Box

$240.00
96″ Manual Gear Crank, w/ 7:1 gear box & hand crank (max 500 SF curtain material)

Rollbar Adapter for Internal Brake Gears – Fits 1″ OD Pipe

$33.00
Roll bar adapter for 7:1, 13:1 and 15:1 gears. 1/2″ square shaft adapts to 1″ OD ( .9″ ID) roll

Rollbar Adapter for Internal Brake Gears – Fits GGSI 1.5″ OD Pipe

$50.00
Roll bar adapter for 7:1, 13:1 and 15:1 gears.1/2″ square shaft adapts to GGSI 1.5″ OD aluminum roll bar, .750

Rollbar Adapter for Internal Brake Gears – Fits 2.3″ Aluminum Roll-Bar

$66.00
Roll bar adapter for 7:1, 13:1 and 15:1 gears. 1/2″ square shaft adapts to 2.3″ aluminum roll-bar using a 1.5″

Rollbar Adapter for Internal Brake Gears 2 Way – Fits 1″ OD Pipe

$37.50
2 directional roll bar adapter for 7:1, 13:1 and 15:1 gears. 1/2″ square shaft adapts to 1″ OD ( .9

Adapter for Internal Brake Gears 2 Way – Fits 2.3″ Roll-Bar

$105.00
2 directional roll bar adapter for 7:1, 13:1 and 15:1 gears. 1/2″ square shaft adapts to 2.3″ aluminum roll-bar, 1.5″

Rollbar Adapter for LVM60/100 Motor – Fits 1.5″ OD Pipe for Rack & Pinion

$55.00
Roll-bar adapter for 60 and 100 nm motor and GC5:1B manual operator, adapts to GGSI 1.5″ OD aluminum roll bar,

Rollbar Adapter for LVM60/100 Motor – Fits 2.3″ Aluminum Roll Bar

$62.50
Roll bar adapter for 60 nm/100 nm motors and gc5:1b manual operator, adapts to 2.3″ aluminum roll bar, 1.5″ square

Greenhouse Fabric Clips – Aluminum

$1.35$135.00
Greenhouse Fabric Clips – Aluminum Used to securely attach curtain fabric to 1.3″ roll bars.