Approx Size: 3′ × 1.4′
Please note: this window only fits Sigma Greenhouse models.
Supercharge your Sigma Greenhouse with the Planta Sigma Automatic Ventilation Window. Improve air circulation by bringing in the fresh outside breeze, keeping your plants healthy and disease-free.
The automatic ventilation window is heat-activated, which requires no electrical power or programming. This function ensures that hot air escapes during the day, preventing shrivelling or withering of your plants.
The number of windows recommended depends on the size of the greenhouse, the environment you’re located, and the types of plants that you’re planning on growing. The following numbers, however, are good a starting point:
We recommend installing an even number of ventilation windows on either side of the greenhouse for optimum airflow.
Nothing like setting up your entire greenhouse and then going to install this vent and seeing the instructions were twice as complicated yet the resources available for this part of the install were not nearly as good. If anything needs some video instructions its these vents. The measurements listed in the instructions say the center beam you install in the first couple steps should be 17" from the top. Top what, center? Edge? And why 17" when the vent itself is only 16"? You're cutting a piece out of the panel so by the time you get to that step you just hope your measurements were correct becasue its not like you can go back from there. I really hated doing this step and just hope it works out alright.
Hi David, thanks for your feedback — we’re sorry to hear the instructions for the roof vent were frustrating.
You're absolutely right that clearer guidance makes a big difference, especially for this step. Here’s the video tutorial that should help clarify things:
👉 Sigma Roof Vent Installation Video: https://plantagreenhouses.com/blogs/installation-videos/sigma-roof-vent-window-installation
And if you need further assistance, feel free to reach out to our support team anytime at info@plantagreenhouses.com — we’re here to help!
The technology of these automatic roof vents is amazing!! I installed the first one towards the end of a hot day and it was completely open. I was not optimistic that it was as "automatic" as Planta advertised, it seemed too simple. Next morning, I went out to see if the vent had remained open and was pleasantly surprised to see it had completely closed during the night when temps reached tge 50s! During the following day, the vent slowly opened as the day warmed up. Bravo, Planta!!!
Thank you for your wonderful review! So glad to hear that the Automatic Roof Vents are performing well and keeping your greenhouse comfortable. We appreciate your support!
Mine haven’t closed all summer due to our horrible hot weather!! Great to have.
It sounds like your vents have been working hard to keep things cool during the scorching summer! 😅🌬️ That's great to hear they've been a valuable addition to your greenhouse. Stay cool! 😊🏡
Glad we got the vents.
Great choice! Enjoy your greenhouse 🌬️🌱
They work great, adjust very well to the weather.
We're glad you're enjoying your roof vents and that they're working well for you. Your greenhouse looks amazing in those pictures!
Greenhouses are amazing products, and they require special shipping and handling. That is the reason, we have been working diligently over the past year to secure preferential shipping rates for our customers. Most shipments across Canada and the US are between $250 and $450.
