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Greenhouse Structures Greenhouse Management. Detached Greenhouses These “stand alone” greenhouses come in 3 basic types: These “stand alone” greenhouses.

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Presentation on theme: "Greenhouse Structures Greenhouse Management. Detached Greenhouses These “stand alone” greenhouses come in 3 basic types: These “stand alone” greenhouses."— Presentation transcript:

1 Greenhouse Structures Greenhouse Management

2 Detached Greenhouses These “stand alone” greenhouses come in 3 basic types: These “stand alone” greenhouses come in 3 basic types: Even-span greenhouses Even-span greenhouses Uneven-span greenhouses Uneven-span greenhouses Quonset greenhouses Quonset greenhouses

3 Even-span Greenhouses Examples of even-span greenhouses. Examples of even-span greenhouses.

4 Even-span Greenhouses Usually clear-span. Usually clear-span. Roofs equal in width and pitch angle. Roofs equal in width and pitch angle. Two basic types: Two basic types: American or high profile. Dutch (Venlo) or low profile.

5 American or high profile even-span greenhouses One large roof per greenhouse. One large roof per greenhouse. Overlapping panes. Overlapping panes. Greater possibility of air leakage where panes overlap. Greater possibility of air leakage where panes overlap.

6 Dutch or low profile even-span greenhouses Two small roofs per greenhouse. Two small roofs per greenhouse. Roof panes extend from eave to ridge. Roof panes extend from eave to ridge. No overlapping panes. No overlapping panes.

7 Uneven-span Greenhouses One roof wider than the other. One roof wider than the other. Different pitch angles. Different pitch angles. Used on hillsides. Used on hillsides. Not popular. Not popular. Wider roof faces south for maximum solar gain. Wider roof faces south for maximum solar gain.

8 Quonset Greenhouses Examples of Quonset style greenhouses. Examples of Quonset style greenhouses.

9 Quonset Greenhouses Framework consists of curved bars or tubes. Framework consists of curved bars or tubes. Clear span. Clear span. Can be used for growing. Can be used for growing. Often covered with white, polyethylene film and used to over-winter nursery stock. Often covered with white, polyethylene film and used to over-winter nursery stock.

10 Attached Greenhouses These “connected” greenhouses also come in 3 basic types: These “connected” greenhouses also come in 3 basic types: Lean-to Lean-to Ridge and Furrow Ridge and Furrow Barrel Vault Barrel Vault

11 Lean-to Greenhouses Attached to buildings or other greenhouses. Attached to buildings or other greenhouses. Usually face south. Usually face south.

12 Ridge and Furrow Greenhouses Consist of several to many even-span structures placed one after another forming a range of greenhouses. Consist of several to many even-span structures placed one after another forming a range of greenhouses. Gutter connected. Gutter connected. American or Dutch (Venlo). American or Dutch (Venlo).

13 Barrel Vault Greenhouses Several quonset type greenhouses connected together forming a range. Several quonset type greenhouses connected together forming a range. Gutter connected. Gutter connected.

14 Barrel Vault Greenhouses Barrel vault greenhouse with ridge vent. Barrel vault greenhouse with ridge vent.

15 The End


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