Sigma Roof Vent

Sigma Roof Vent

Rated 4.5 out of 5 stars
2 Reviews

Approx Size: 3′ × 1.4′

The Sigma ventilation window is a perfect complement to your Sigma Greenhouse. Provides ample ventilation and improves air circulation inside your Sigma Greenhouse. It is easy to install. 

Galvanized Steel Structure


3′ × 1.4′

Regular price $65 CAD
Regular price CAD Save $-65 Sale Sale price $65 CAD
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About Sigma Roof Vent

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.

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Rated 4.5 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 1 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
2 reviews
  • BO
    Bobby O.
    Verified Buyer
    I recommend this product
    Location Arizona
    Rated 5 out of 5 stars
    5 days ago
    Roof Vents

    Have more air flow and plants are doing great.

    PG Profile picture for Planta Greenhouses Canada
    Planta Greenhouses Canada
    12 hours ago

    Hi Bobby,

    That's great to hear! Increased airflow can make a big difference in plant health. Keep up the good work with your plants :)

  • KJ
    Kenneth J.
    Verified Buyer
    I recommend this product
    Location Michigan
    Rated 4 out of 5 stars
    1 week ago
    Sigma Roof Vent

    The installation was straightforward and operated efficiently by keeping good airflow throughout the day with temperatures in the 90s.

    PG Profile picture for Planta Greenhouses Canada
    Planta Greenhouses Canada
    3 minutes ago

    Glad to hear your new roof vents are keeping things cool even on scorching days 😅. Enjoy the fresh air! 💨😊

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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.
  • White glove delivery service isn't available. The greenhouse components are delivered in multiple boxes, the largest of which weighs 80lbs. The greenhouse will be delivered to your driveway. Please make arrangements to have the package moved to its installation location. 
  • 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.