Oklahoma State University-Ardmore Research Greenhouse-Ardmore, OK
Project Completed in 2012

South end view of Nexus Vail galvanized steel research greenhouse glazed with 8mm twin wall Polygal panels. Note four Acme slant wall fans exhausting air out east wall. Two fans are located in each cell.



View of interior partition separating two research cells. Wall is glazed with 8mm twin wall Polygal and flashed and caulked to roof and wall panels.


Close up view of flashing to seal at partition wall between separate research greenhouse cells.


Interior view of one research cell looking towards Kool-cel evaporative pad cooling system. Note concrete floors that slope to trench drain under the pad system. HAF air circulation fan suspended from bottom truss. 3’6” aluminum walk door with half glass window. Outer end wall to left. Partition wall to right.


Close up view of trench drain (before protective covers removed) on pad wall side of greenhouses. Note one in front of cell and 2nd visible in next cell beyond partition wall.


Close up view of Acme 4” thick Kool-cel pad evaporative cooling system mounted in stainless steel PDR-4 distribution and return system. View of black plastic sump tank covered by our own unique 2-part black fiberglass lid to house water for the cooling system and sump pump. Note drop leg and bleed off tube near door to drain part of system water anytime pads are operating to help keep down salt levels.


View of Modine Hot Dawg natural gas heater with power vent, vented out the sidewall with double wall pipe. 12” HAF fans overhead for air circulation and note intake side of slant wall exhaust fan on wall under the heater.


View of exhaust fan wall of research greenhouse. Note intake side of two Acme slant wall exhaust fans. One is single-speed and one is 2-speed to allow more ventilation options. You can also see Modine Hot Dawg heater and J&D 12” HAF fan above concrete floors.


View showing corner flashing, gutter downspout adapter and heater vent pipe out through side wall. Also not the Acme slant wall exhaust fan which allows higher CFM air movement with interior mounted shutters.


View of Nexus Vail greenhouse frame during construction. Note exhaust fans, heaters, and HAF fans already installed even before glazing the structure or addition partition to divide into two research cells.


Construction complete on pad wall side of greenhouse. Features Acme motorized aluminum intake shutters over the Kool-cel evaporative cooling pads. Separate aluminum-clad 3’6” wide walk doors into each research cell featuring lever locking handles and half glass windows.