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Commercial Greenhouse Thermolator

Product Description:
The Thermolator is one of our most popular quonset greenhouses, aka Tunnel. Growers have successfully built thousands of Thermolator greenhouses / tunnels since 1980. The Thermolator boasts the best value per square foot of all our greenhouses as it can be used for practically all crops in almost all weather condiitons and climates.  

The Thermolator comes in two standard widths: 30' & 35'. The Thermolator 35 is widely used by many tomato transplant growers.

The 5' or 6' sidewalls allow full use of the span and may be equipped with either roll-up walls or dropwalls for convenient access to crops from both sides (often used by transplant growers).

Download Thermolator Brochure

Thermolator 30
Agra Tech's Thermolator 30 is our standard quonset or tunnel unit featuring a lower cost per square foot.  

TH30 Specifications:

  • Non-Code
  • Frame: 4' or 6' on center spacing 
  • Sidewall Height: 3'6" or 6"
  • Ridge Height: 14' or 11'
  • Arch Diameter: 1 7/8" 16ga.
  • Stubs: 2 3/8" 13ga. 
  • Purlins: 3 runs of Condensate catching purlins x 18ga.
  • Tie Bars & Webs: 1 3/8" 16ga (OPTIONAL)

Thermolator 30 Code
Agra Tech's Thermolator 30 Code features a heavy weight quonset greenhouse frame, available with Engineered Drawings & Calcs to present to your local building department for a permit.

TH30 CODE Specifications:

  • Code: U.B.C. 20/100 "B" or 20/80 "C" @ 4' Arch Spacing. Or I.B.C 12/85 "C" @ 6' Arch Spacing.
  • Frame: 4' or 6' on center spacing 
  • Sidewall Height: 3'6" or 6"
  • Ridge Height: 14' or 11'
  • Arch Diameter: 2 3/8" 13ga.
  • Stubs: 2" x 4" Hat Channel  12ga. @ 3'6" or 1 7/8" 13ga @ 6" 
  • Purlins: 5 runs of Condensate catching purlins x 18ga.
  • Tie Bars & Webs: 1 3/8" 16ga (OPTIONAL)

Thermolator 35
Agra Tech's Thermolator 35 is a light weight, wide span arch offering maximum square feet of ground covered for the dollar.  It is for use in non-snow areas.  

TH35 Specifications:

  • Non-Code: 
  • Frame: 4' or 6' on center spacing 
  • Sidewall Height: 5' or 6'
  • Ridge Height: 12' or 13'
  • Arch Diameter: 1 7/8" 16ga.
  • Stubs: 2 3/8" 13ga.
  • Purlins: 3 runs of Condensate catching purlins x 18ga.
  • Tie Bars & Webs: 1 3/8" 16ga (OPTIONAL)

Thermolator 35 Code
Agra Tech's Thermolator 35 Code is our "top-of-the-line" Thermolator.  It will hang a full tomato crop and meet building codes.  It ventilates better and holds temperatures more stable.  It features trussed arches and an 9' eave height.  With 4 webs, it meets 20# live load and 80mph wind loads.  With 6 webs it will also hang a tomato crop.

TH35 Code Specifications:

  • Code: 12# Full Live Load / 85 MPH Exposure "C" Wind
  • Frame: 6' on center spacing 
  • Sidewall Height: 8'
  • Ridge Height: 15'
  • Arch Diameter: 2 3/8" 16ga.
  • Stubs: 2 7/8" 12ga.
  • Purlins: 5 runs of Condensate catching purlins x 18ga.
  • Tie Bars 1 5/8" 16ga & Webs: 1 3/8" 16ga.

The Thermolator used by many tomato transplant growers.

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