Janssens 10mm Twin Wall Polycarbonate

For many Janssens greenhouses, you can choose a HYBRID glazing option, meaning that the walls are 4mm Tempered Glass, and you have 10mm Twin Wall Heat Block Polycarbonate for the roof.

Janssens switched to this material in 2024, and it is significantly different in appearance from their earlier material.  The older material was more clear, and the new material is more milky / translucent.

A few customers have been surprised with the milky appearance of the hybrid roof heat block polycarbonate. Here are some photos and a technical specification document to help you understand this material better.  Please reach out with any questions about this great new UV/Heat block option.