May also be used as a free-air exhaust

Product Weight (LB): 21

extend your growing season

The key difference between two situation is because of oxygen

natural finish to your cold frame

Janssens | Modern Pent Roof Glass Greenhouse Triangle Support RUSTIC CABINET ON WHEELS May also be used asThese 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 Kits already come standard with