FAQs Sigma automatic ventilation window
What greenhouse models can this window fit?
The Sigma Ventilation Windows will only be compatible with Sigma Greenhouse models.
How big is the window?
The Sungrow Ventilation Window is exactly 3 ft wide by 1.4 ft tall (91.4 cm by 42.6 cm).
What is the window made out of?
The roof ventilation windows are made of the same material as your Planta Greenhouse: shatter-resistant polycarbonate and strong, galvanized steel.
How many roof Ventilation windows are recommended for the greenhouse?
We strongly recommend installing an even amount of roof ventilation windows so that you can place at least one on each side of the greenhouse.