Move and refresh the stagnant air flow in your greenhouse or building to create a healthier and more productive growing environment. These greenhouse exhaust enthusiasts are excellent for reducing plant and worker heat stress. Our exhaust followers provide superb ventilation for high tunnels and cool frames. Create a cooler more comfortable growing environment, which can directly contribute to efficiency, quality and profitability for your greenhouse business. Exhaust fans also works great in workshops and buildings.
Move and refresh the stagnant air in your greenhouse to make a healthier and more productive environment. These exhaust & circulating fans are excellent for plant development. Create a cooler convenient growing environment, which can directly contribute to efficiency, quality and profitability for your greenhouse business.
The idea of cooling a greenhouse with thermal buoyancy and wind dates back to the beginning of managed environment. All greenhouses constructed just before the 1950’s acquired some form of vents or louvers which were opened to allow the excess heat to flee and cooler outside air flow to enter.

When polyethylene was developed with large sheets within the whole roof, placing vents on the roof proved difficult. Engineers then came up with the idea of using fans that attract outside air flow through louvers in a single endwall and exhaust it out the contrary end. With thermostatic control, this is, and still may be the accepted method for cooling many structures where positive air flow movement is needed.

Growers with hoophouses have found that roll-up sides work very well for warm season ventilation. Both manual and motorized systems can be found. A spot with good summer season breezes and lots of space between houses is needed. It can help to have greenhouses designed with a vertical sidewall up to the elevation of the attachment rail to lessen the quantity of rain that may drip in.

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