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.
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.
- We will contact you to confirm shipping price, based on your location and order size.
- Shipping on most residential greenhouse orders is between $250 and $450, customers in remote areas may need to pay 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 do not ship to PO Boxes, as in most cases you will need to sign for your item.
- Orders placed on weekends or public holidays will not begin processing until the next business day.