Move and refresh the stagnant atmosphere in your greenhouse or building to create a healthier and more productive developing environment. These greenhouse exhaust followers are excellent for reducing plant and worker heat stress. Our exhaust fans provide excellent ventilation for high tunnels and frosty frames. Create a cooler more comfortable growing environment, which can directly contribute to efficiency, 
quality and profitability for your greenhouse business. Exhaust followers also functions great in workshops and structures.
Move and refresh the stagnant atmosphere in your greenhouse to make a healthier and more productive environment. These exhaust & circulating fans are great for plant growth. Create a cooler convenient growing environment, that may directly contribute to efficiency, quality and profitability for your greenhouse business.
The concept of cooling a greenhouse with thermal buoyancy and wind dates back to the beginning of managed environment. All greenhouses built prior to the 1950’s acquired some kind of vents or louvers which were opened to allow the excess heat to escape and cooler outside air flow to enter.
When polyethylene was developed with large sheets within the whole roof, putting vents on the roof proved difficult. Engineers then came up with the idea of using followers that draw outside atmosphere through louvers in one endwall and exhaust it out the opposite end. With thermostatic control, this is, and still is the accepted way for cooling many structures where positive air flow movement is needed.
Growers with hoophouses possess found that roll-up sides work well for warm season ventilation. Both manual and motorized systems are available. A spot with good summer season breezes and plenty 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 reduce the quantity of rain that may drip in.
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