Expansion Mansion Greenhouse

The 21' wide Expansion Mansion Greenhouse is one of our most versatile growing structures. Ideal for the new grower, it is easily expandable and upgradable with a variety of ventilation and mechanical system options. Its traditional arch design can be fitted with double poly film or polycarbonate sheeting. It can be constructed as a freestanding or gutter-connected greenhouse.

• Expandable: Add additional gutter-connected bays as you grow.

• Poly-Vent® ventilation: Controlled, sidewall natural ventilation system.

• Double poly or polycarbonate: Choose double poly or polycarbonate structured sheeting for the covering.

Specifications

• Width: 21'-0"

• Length: starting at 18' with increments of 6'

• Sidewall height: 6', 7' or 8'

• Height to apex: 11'-4" (6-for sidewall)

• Frame spacing: 6'

• Truss height: Approx. 8'-6"

• Truss System: 3-part truss made of 1" and 1.66" galvanized tubes

• Roof Cover: clear or white 6 mil UVI treated polyethylene or polycarbonate

• End wall cover: Clear or white 6 mil. UVI treated polyethylene or polycarbonate

• Frame: 3" o.d. 14-gauge galvanized steel tubing

• Structural purlins: (1) run of 2" x 14 ga. galvanized steel tube

Feature

Freestanding or gutter connected
Available as a 21-foot wide single freestanding bay or in any number of gutter connected bays for widths of 42', 63', 84', or more.
Sidewall venting
Thermostatically controlled Poly-Vent natural venting system is a modern alternative to more expensive rack & pinion vents
Heavy-duty trussed frame sections
The Expansion Mansion features tough, 2-inch, 14 ga. Allied Gatorshield® steel frame for longevity you can count on. Load it up with confidence that it will stand up to the rain, snow and sun for years to come.
Double inflated poly or polycarbonate sheeting
Choose from a white or clear double polyethylene or several different types of long-lasting polycarbonate structured sheeting. Variety of doors
You can order your Expansion Mansion with a multitude of different doors for work flow and ventilation.

Wide range of options
You can purchase just the Expansion Mansion frame or a complete package that includes poly covering, Poly-Vent sides, rain gutters, doors and more. You can even purchase a complete turnkey operation with our full line of options.

Choose the options you need and leave out those that you don't need. From fans to heaters to controls, we can configure a greenhouse specifically to your needs.

Variety of doors

You can order your Expansion Mansion with a multitude of different doors for work flow and ventilation.

Double inflated poly or polycarbonate sheeting
Choose from a white or clear double polyethylene or several different types of long-lasting 8mm polycarbonate structured sheeting

Wide range of options
You can purchase just the Expansion Mansion frame or a complete package that includes poly covering, Poly-Vent sides, rain gutters, doors and more. You can even purchase a complete turnkey operation with our full line of options.

Ventilation system

Ventilation Fan is one of the most important requirement in the greenhouse cooling system for a greenhouse, Exhaust fans are nice for cooling and providing fresh air inside, keeping temperatures in the greenhouse at a reasonable level.  you will have all you need to equip your greenhouse with a durable fully automated ventilation system.

 

Greenhouse Heating

Choose from our wide selection of gas, electric heaters, Greenhouse Heating will keep temperatures in the greenhouse at a reasonable level in summer time.




 

Evaporative Cooling System

Choose from our aluminum, PVC evaporative cooling systems and 4" or 6" pad thickness. You can choose open top. Open design allows for easy detection and cleaning of clogged holes in the distribution pipe.



 

Environmental Control Systems:

Choose from thermostats or  greenhouse controllers. It makes greenhouse temperature control easy. Just connect your heating and cooling equipment and turn the knobs to the desired day and night temperatures. No more dueling thermostats that have cooling systems and heaters running at the same time


 

Circulation Fans 

Circulation fans provide constant air circulation within the greenhouse space. Helping plant health by reducing disease caused by condensation on plant leaves.