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Greenhouse Design and Construction. Greenhouse structure and parts Factors to be considered when designing Legal and building regulations when building This presentation is from Virginia Tech and has not been edited by the Georgia Curriculum Office. .
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Greenhouse Design and Construction Greenhouse structure and parts Factors to be considered when designing Legal and building regulations when building This presentation is from Virginia Tech and has not been edited by the Georgia Curriculum Office.
Laying the Foundation: Structural Parts of a Greenhouse • Sidewall: supports the entire weight of the greenhouse. Consists of the following parts - • side ventilators • side posts • curtain wall • Concrete footer: foundation for the side posts • Eave: area where the sidewall joints connect • Sash bar: bar made of metal or wood that runs from eave to the ridge, holding glass in place
Laying the Foundation: cont.. • Roof: provides cover. Consists of: • sash bars • purlins • roof ventilators • ridge • Purlin: bar running length of roof that supports the sash bars, holds bows and trusses upright • roof and side ventilators: allow ventilation during light rain • ridge: peak of greenhouse • shutters: operate like windows to allow air flow
Greenhouse Shapes • Even-span greenhouse: self supporting with distance from ridge to eave equal in distance • Ridge & Furrow: two or more even-span greenhouses connected at the eaves. • Quonset: arch-shaped bows placed in a row. Appears tube shaped - most common shape • Sawtooth: greenhouse with a vent near the eave of the lowest side wall that allows for natural ventilation.
Greenhouse Shapes cont. • Lean-to: a greenhouse already attached to a existing structure. • Gothic: Slightly pointed greenhouse covered with corrugated fiberglass
What if we put the door here and the window here…. • There are many factors to consider before you build a permanent structure. It is a lot of money and time to throw away if you don’t obtain as many facts as possible before you build. • Factor 1: Accessibility • Factor 2: Expandability • Factor 3: Markets • Factor 4: Orientation
Factors to consider: cont. • Factor 5: Personnel • Factor 6: Topography • Factor 7: Utilities/water
What does this mean for greenhouse management? • It is not as easy as just going outside and building a greenhouse. There are things to considered just as in any situation. So remember, depending on your location and climate, you will have to consider the • shape of design • location • utilities • market • personnel