Components Of Greenhouse


Roof:  transparent cover of a green house.

Gable: transparent wall of a green house

Cladding material: transparent material mounted on the walls and roof of a green house.

Rigid cladding material: cladding material with such a degree of rigidity that any deformation of the structure may result in damage to it. Ex. Glass

Flexible cladding material: cladding material with such a degree of flexibility that any deformation of the structure will not result in damage to it. Ex. Plastic film

Gutter: collects and drains rain water and snow which is place at an elevated level between two spans.

Column: vertical structure member carrying the green house structure

Purlin: a member who connects cladding supporting bars to the columns

Ridge: highest horizontal section in top of the roof

Girder: horizontal structure member, connecting columns on gutter height

Bracings: To support the structure against wind

Arches: Member supporting covering materials

Foundation pipe: Connection between the structure and ground

Span width: Center to center distance of the gutters in multispan houses

Green house length: dimension of the green house in the direction of gable

Green house width: dimension of the green house in the direction of the gutter


Cladding material
Polythene proves to be an economical cladding material. Now long lasting, unbreakable and light roofing panels-UV stabilized clear fiber glass and polycarbonate panels are available. Plastics are used in tropical and sub-tropical areas compared to glass/fiberglass owing to their economical feasibility. Plastics create enclosed ecosystems for plant growth. LDPE (low density polyethylene) / LLDPE (linear low density polyethylene) will last for 3-4 years compared to polythene without UV stabilizers.

Comparison of different kinds of covering materials