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Janssens | Modern Pent Roof Glass Greenhouse Triangle Support

Janssens

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$749.00
$800.00
$749.00
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These Triangle Supports are long diagonal beams that are used to support the underside of the longer roof rafters in the Janssens Modern greenhouses.

Note also that in order to support the longer roof glass panels of this unique glass greenhouse design, the aluminum roof rafters on the Moderns are already twice as thick as our normal greenhouse rafters.

The standard sizes of Janssens Modern Pent Roof Glass Greenhouse Kit already come standard with some triangle supports. You can add extra additional triangle roof supports for the Janssens Modern greenhouses - up to one for every internal rafter. Be sure to select to correct size for your Modern.

  • M23 - comes with one triangle support, can add up to two more
  • M34 - comes with two triangle supports, can add up to three more
  • M36 - comes with two triangle supports, can add up to five more

Roll-up shades, when used, must be installed between these triangle supports in the Modern greenhouse.

About Janssens Greenhouses

Janssens Greenhouse Assembly Overview

What Makes Janssens a Quality Greenhouse Brand

Janssens greenhouses are renowned for their European craftsmanship, superior materials, and long-lasting design. Every detail is built to exceed the standards of most competitors in the same price range, ensuring exceptional performance and visual appeal.

Premium Construction and Materials

  • Heavy-duty aluminum frame: Janssens uses thicker, stronger aluminum profiles than most greenhouse brands, giving each structure superior rigidity and weather resistance.

  • Corrosion-proof hardware: All fittings are made from stainless steel, preventing rust or deterioration in humid or outdoor environments.

High-Performance Glazing

  • 4 mm tempered safety glass: While many greenhouses use 3 mm glass, Janssens provides thicker, TÜV and GS-certified tempered glass for better insulation and durability against wind, hail, and impact.

  • Full-length glass panels: Each glazing sheet is a single, unbroken panel that creates a sleek, modern appearance—unlike the overlapping or segmented panels found on many other brands.

  • Weather-tight sealing system: Heavy-duty rubber gaskets hold the glass securely in place, improving insulation and reducing heat loss during colder months.

Smart Design Advantages

  • Integrated foundation frame (4” high): Included with every Janssens greenhouse, providing a stable, level base that other brands often charge extra for.

  • European engineering standards: Janssens greenhouses are precision-built and independently tested for strength, safety, and long-term reliability.

Optional Accessories

Doors

  • Additional Sliding Doors
  • Additional Hinged Doors
  • Lowered Threshholds for Doors
  • Drop Kits for Doors (to place on a knee wall)

Windows

  • Additional Roof Vents
  • 'Push-Open' Side Windows
  • Additional Louvre Windows
  • Fly Screens for Roof vents
  • Fly Screens for Push Open Side Windows
  • Fly Screens for Louvre Windows
  • Manual Openers for Roof or Side Windows
  • Automatic Openers for Roof or Side Windows
  • Automatic Openers for Louvre Windows
  • Covers for Louvre Windows
  • Restraint Cable System for Roof Vents

Shelving

  • Top Shelf
  • Bottom Shelf (Seed Tray)
  • Slatted Shelving

Climate Moderation

  • Wooden Roof Shades
  • Shade Curtain
  • Roll-Up Shades
  • Exhaust Fan
  • Solar Powered Exhaust Fan
  • Intake Vent
  • Palma Heater
  • Big Red heater
  • Digital Thermostat

Miscellaneous

  • Wheelbarrow Ramp
  • Metal Plant Hooks
  • Solar Powered Light
  • Grow Light
  • Scroll Supports
  • T Bolts

Warranty

Glass Greenhouse
15 Year Limited Warranty

Polycarbonate Greenhouse
15 Year Limited Warranty

Hybrid Greenhouse
15 Year Limited Warranty
60

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