MX Cabrio

The Poly MX Cabrio system
optimal ventilation

The Poly MX Cabrio is a foil-integrated greenhouse roof system with a fully opening deck for maximum ventilation. This makes it the ideal solution for crops such as bedding plants, trees and plants that need to thrive in an outdoor climate at appropriate times.

  • The roof system can be opened fully (vertically), allowing heat and moisture to escape easily and plants to be exposed directly to the sun;
  • The deck system can be opened in a number of positions, for example a small opening creates a 'chimney effect' for high levels of ventilation;
  • The convertible system is available in different roof sizes and can be manufactured in 4 mm glass.

Technical information

The Poly MX Open Roof system is available in different spans, 3.20, 4.00, 4.27m and 12ft. All these spans can be fitted with single or double (blown) Poly film. This system can be opened and closed using 3 different drive systems, each with their own specific characteristics:

Lumenex® MX-1 Open roof

The original MX system with the largest square footage built worldwide. The vents are opened by a central drive shaft connected to a push and pull rod system. Next to the drive shaft, the steel A-frame supports a small gutter to collect condensation water at the top of the ridge. When the vents are slightly open, rainwater is also collected. Both vents are connected to the same shaft and therefore open simultaneously.

Lumenex® MX-2 Open roof

The MX-2 has larger spans and can handle higher wind and snow loads. Two superimposed push-pull rods can open more vents simultaneously. More vents open simultaneously with fewer motors and racks. Another big advantage for growers is that the vents open independently and still have a relatively small gutter in the ridge.

Lumenex® MX-3 open roof

All the aluminium vents on the MX-3 have been redesigned to provide greater rigidity for the new opening system. Uniquely, the vents are positioned one above the other, allowing growers to open the roof when it is raining or when direct sunlight is undesirable. Two push-pull rods on the side of the truss can control the vents independently.


  • Fully open roofsysteem;
  • Solid and reliable;
  • Highly waterthight;
  • Available in various spans.

Related projects

Poly MX-3 Cabrio

cover Double Foil crop Bedding plants scale 45.000 m²