Please note: this window only fits Sigma Greenhouse models.
The Planta Sigma Ventilation Window is a fantastic add-on for your Sigma Greenhouse. It will efficiently increase air circulation, maintaining a comfortable temperature, which is essential for healthy plant growth and disease control.
The number of suggested windows is determined by the size of the greenhouse, the environment and growing zone in which you live, and the plants you would like to cultivate. However, the following numbers are a general guideline:
- Sigma Urban (10x13): 2-4 windows
- Sigma 20 (10x19.5): 4-6 windows
- Sigma 26 (10x26): 6 windows
- Sigma 32 (10x32): 6-8 windows
We recommend installing an even number of ventilation windows on either side of the greenhouse for optimum airflow.
Planta Greenhouses is dedicated to deliver your order promptly, so you can begin using your greenhouse products right away. Because greenhouses are packaged in large boxes, they have unique shipping requirements, including:
- We will contact you to confirm shipping price, based on your location and order size.
- Shipping on most orders is between $250 and $450. Deliveries to remote areas may cost extra.
- When you place your order, please make sure to enter the correct Phone and Address at checkout. You will be contacted by phone before the item is shipped. We cannot be responsible for deliveries to incorrect addresses.
- As part of the delivery process, we require a contactable telephone number (for the courier company to contact you) before the item is shipped.
- We will make every effort to ship your order in the fastest possible manner, and by the mode of transportation that you specify; however, in the event of no specific instructions, we will use our judgment and ship the best, fastest and most economical way. We are not responsible for delayed delivery due to conditions beyond our control.
- We do not ship to PO Boxes, as in most cases you will need to sign for your item.
- Orders placed on weekends and public holidays will be processed the next business day.
The Sigma Ventilation Windows will only be compatible with Sigma Greenhouse models.
The Sungrow Ventilation Window is exactly 3 ft wide by 1.4 ft tall (91.4 cm by 42.6 cm).
The roof ventilation windows are made of the same material as your Planta Greenhouse: shatter-resistant polycarbonate and strong, galvanized steel.
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.
Yes, roof ventilation windows work as an add-on and can be installed only once the greenhouse installation is complete.