Van Wingerden Greenhouse CompanyAB greenhouse
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Three views of OR greenhouse

Roof Structure:

  • Flat, retractable roof structure.
  • Roof covering is rain tight.
  • Increased light transmission.
  • Heating required to keep temperature above freezing at gables to carry water run-off.
  • Aluminum gutter extensions.
  • Aluminum extruded shade beam.
  • All stainless steel hardware.

Covering: LS Svensson QLS Abri

  • The screen is reinforced in such a way that one can hang it onto stainless steel wires with special synthetic Svensson Abri hooks.
  • When closed, QLS Abri protects the crop against adverse weather conditions.
  • When opened, the crop is dominated by the natural climate.

QLS Characteristics:

  • QLS is the ideal solution for tree cultivation and cultivation of bedding plants; these crops normally produce higher quality when they are exposed to outdoor conditions and only need to be protected against adverse weather conditions.
  • QLS is also the ideal solution for various crops in warm areas; when there are high outside temperatures, the greenhouse effect is eliminated by opening the QLS Abri. This allows for better overall temperature control than in a typical greenhouse.

Structure Specifications:

OR12 OR24 OR36
Peak Width 12 feet 12 feet 12 feet
Bay Width (Truss) 12 feet 24 feet 36 feet
Post Spacing 10 or 12 feet 10 or 12 feet 10 or 12 feet
Sidewall Posts 2 inch square 2-1/2 inch square 3 inch square
Gable Posts 2 inch square 2-1/-2 inch square 3 inch square
Trusses 2 inch square 18" deep box type 18" deep box type
Truss Extensions N/A 2-1/2 inch square 3 inch square
Truss Bracing Tie pipe hanger 1- 1/2 inch square 1-1/2 inch square

  • All substructure materials are manufactured using raw steel and then hot dipped galvanized for rust protection.
  • Greenhouse structure is braced with X-brace section and wind brace section using 1/2-inch round hot dipped galvanized rods.
  • NGMA standard structural load calculations are used unless otherwise requested by customer.

Custom Fabrication:

  • Truss clearance, gutter and truss extension heights custom manufactured per project.
  • Girder trusses to eliminate posts.
  • Slope of the greenhouse roof created by varying the slope in the posts and the truss extensions above the truss. This allows the truss and the land to be level.
  • Framing of passage, overhead and sliding doors.
  • Attachment to existing or new buildings.
  • Non-standard bay widths manufactured if required.
  • Greenhouses can be manufactured to accept:
    • Shade/Energy retention systems
    • Irrigation systems
    • Hanging basket systems
    • Lighting systems
    • Heating systems
    • Crop support systems

To request a quote on this greenhouse, go to our online quote request form.