1. Ornamental Horticulture Chapter 19

2.  Why do we need growing structures?  Provides controlled growing environment  Growth when outdoor environment is extreme  Extends growing season

3.  A-Frame  Ridge and Furrow

4.  Quonset Style

5.  Heating  Heating units  Cooling and Ventilation  Roof and Side Ventilators  Exhaust Fans  Fan and Convection Tube Systems  Retractable Roof  Shading

6.  Need to drain quickly (benches)  Workers have to be able to reach center  Must maximize crops exposure to light  Materials  Wood  Aluminum  Welded Wire  Wooden Slats  Snow fencing  Concrete